From: Jack Pham jackp@codeaurora.org

commit d1d90dd27254c44d087ad3f8b5b3e4fff0571f45 upstream.

commit 72704f876f50 ("dwc3: gadget: Implement the suspend entry event handler") introduced (nearly 5 years ago!) an interrupt handler for U3/L1-L2 suspend events. The problem is that these events aren't currently enabled in the DEVTEN register so the handler is never even invoked. Fix this simply by enabling the corresponding bit in dwc3_gadget_enable_irq() using the same revision check as found in the handler.

Fixes: 72704f876f50 ("dwc3: gadget: Implement the suspend entry event handler") Acked-by: Felipe Balbi balbi@kernel.org Signed-off-by: Jack Pham jackp@codeaurora.org Cc: stable stable@vger.kernel.org Link: https://lore.kernel.org/r/20210428090111.3370-1-jackp@codeaurora.org [jackp@codeaurora.org: backport to pre-5.7 by replacing DWC3_IS_VER_PRIOR check with direct comparison of dwc->revision] Signed-off-by: Jack Pham jackp@codeaurora.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/usb/dwc3/gadget.c | 4 ++++ 1 file changed, 4 insertions(+)

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 8ce13f5e83c73..2eac817a43d62 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -1834,6 +1834,10 @@ static void dwc3_gadget_enable_irq(struct dwc3 *dwc) if (dwc->revision < DWC3_REVISION_250A) reg |= DWC3_DEVTEN_ULSTCNGEN;

+ /* On 2.30a and above this bit enables U3/L2-L1 Suspend Events */ + if (dwc->revision >= DWC3_REVISION_230A) + reg |= DWC3_DEVTEN_EOPFEN; + dwc3_writel(dwc->regs, DWC3_DEVTEN, reg); }

From: Aurelien Aptel aaptel@suse.com

commit 6d2fcfe6b517fe7cbf2687adfb0a16cdcd5d9243 upstream.

SMB3.0 doesn't have encryption negotiate context but simply uses the SMB2_GLOBAL_CAP_ENCRYPTION flag.

When that flag is present in the neg response cifs.ko uses AES-128-CCM which is the only cipher available in this context.

cipher_type was set to the server cipher only when parsing encryption negotiate context (SMB3.1.1).

For SMB3.0 it was set to 0. This means cipher_type value can be 0 or 1 for AES-128-CCM.

Fix this by checking for SMB3.0 and encryption capability and setting cipher_type appropriately.

Signed-off-by: Aurelien Aptel aaptel@suse.com Cc: stable@vger.kernel.org Signed-off-by: Steve French stfrench@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- fs/cifs/smb2pdu.c | 7 +++++++ 1 file changed, 7 insertions(+)

diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c index 4b35328f2d77f..3304feb668a04 100644 --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -791,6 +791,13 @@ SMB2_negotiate(const unsigned int xid, struct cifs_ses *ses) /* Internal types */ server->capabilities |= SMB2_NT_FIND | SMB2_LARGE_FILES;

+ /* + * SMB3.0 supports only 1 cipher and doesn't have a encryption neg context + * Set the cipher type manually. + */ + if (server->dialect == SMB30_PROT_ID && (server->capabilities & SMB2_GLOBAL_CAP_ENCRYPTION)) + server->cipher_type = SMB2_ENCRYPTION_AES128_CCM; + security_blob = smb2_get_data_area_len(&blob_offset, &blob_length, (struct smb2_sync_hdr *)rsp); /*

From: Rolf Eike Beer eb@emlix.com

commit 0ee74d5a48635c848c20f152d0d488bf84641304 upstream.

iommu_device_sysfs_add() is called before, so is has to be cleaned on subsequent errors.

Fixes: 39ab9555c2411 ("iommu: Add sysfs bindings for struct iommu_device") Cc: stable@vger.kernel.org # 4.11.x Signed-off-by: Rolf Eike Beer eb@emlix.com Acked-by: Lu Baolu baolu.lu@linux.intel.com Link: https://lore.kernel.org/r/17411490.HIIP88n32C@mobilepool36.emlix.com Link: https://lore.kernel.org/r/20210525070802.361755-2-baolu.lu@linux.intel.com Signed-off-by: Joerg Roedel jroedel@suse.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/iommu/dmar.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c index 9a07bcad38e5b..566b9224df605 100644 --- a/drivers/iommu/dmar.c +++ b/drivers/iommu/dmar.c @@ -1130,7 +1130,7 @@ static int alloc_iommu(struct dmar_drhd_unit *drhd)

err = iommu_device_register(&iommu->iommu); if (err) - goto err_unmap; + goto err_sysfs; }

drhd->iommu = iommu; @@ -1138,6 +1138,8 @@ static int alloc_iommu(struct dmar_drhd_unit *drhd)

return 0;

+err_sysfs: + iommu_device_sysfs_remove(&iommu->iommu); err_unmap: unmap_iommu(iommu); error_free_seq_id:

From: Adrian Hunter adrian.hunter@intel.com

commit cb7987837c31b217b28089bbc78922d5c9187869 upstream.

When adding support for power events, some handling of FUP packets was unified. That resulted in breaking reporting of TSX aborts, by not considering the associated TIP packet. Fix that.

Example:

A machine that supports TSX is required. It will have flag "rtm". Kernel parameter tsx=on may be required.

# for w in `cat /proc/cpuinfo | grep -m1 flags `;do echo $w | grep rtm ; done rtm

Test program:

#include <stdio.h> #include <immintrin.h>

int main() { int x = 0;

if (_xbegin() == _XBEGIN_STARTED) { x = 1; _xabort(1); } else { printf("x = %d\n", x); } return 0; }

Compile with -mrtm i.e.

gcc -Wall -Wextra -mrtm xabort.c -o xabort

Record:

perf record -e intel_pt/cyc/u --filter 'filter main @ ./xabort' ./xabort

Before:

# perf script --itrace=be -F+flags,+addr,-period,-event --ns xabort 1478 [007] 92161.431348552: tr strt 0 [unknown] ([unknown]) => 400b6d main+0x0 (/root/xabort) xabort 1478 [007] 92161.431348624: jmp 400b96 main+0x29 (/root/xabort) => 400bae main+0x41 (/root/xabort) xabort 1478 [007] 92161.431348624: return 400bb4 main+0x47 (/root/xabort) => 400b87 main+0x1a (/root/xabort) xabort 1478 [007] 92161.431348637: jcc 400b8a main+0x1d (/root/xabort) => 400b98 main+0x2b (/root/xabort) xabort 1478 [007] 92161.431348644: tr end call 400ba9 main+0x3c (/root/xabort) => 40f690 printf+0x0 (/root/xabort) xabort 1478 [007] 92161.431360859: tr strt 0 [unknown] ([unknown]) => 400bae main+0x41 (/root/xabort) xabort 1478 [007] 92161.431360882: tr end return 400bb4 main+0x47 (/root/xabort) => 401139 __libc_start_main+0x309 (/root/xabort)

After:

# perf script --itrace=be -F+flags,+addr,-period,-event --ns xabort 1478 [007] 92161.431348552: tr strt 0 [unknown] ([unknown]) => 400b6d main+0x0 (/root/xabort) xabort 1478 [007] 92161.431348624: tx abrt 400b93 main+0x26 (/root/xabort) => 400b87 main+0x1a (/root/xabort) xabort 1478 [007] 92161.431348637: jcc 400b8a main+0x1d (/root/xabort) => 400b98 main+0x2b (/root/xabort) xabort 1478 [007] 92161.431348644: tr end call 400ba9 main+0x3c (/root/xabort) => 40f690 printf+0x0 (/root/xabort) xabort 1478 [007] 92161.431360859: tr strt 0 [unknown] ([unknown]) => 400bae main+0x41 (/root/xabort) xabort 1478 [007] 92161.431360882: tr end return 400bb4 main+0x47 (/root/xabort) => 401139 __libc_start_main+0x309 (/root/xabort)

Fixes: a472e65fc490a ("perf intel-pt: Add decoder support for ptwrite and power event packets") Signed-off-by: Adrian Hunter adrian.hunter@intel.com Cc: Andi Kleen ak@linux.intel.com Cc: Jiri Olsa jolsa@redhat.com Cc: stable@vger.kernel.org Link: http://lore.kernel.org/lkml/20210519074515.9262-2-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- tools/perf/util/intel-pt-decoder/intel-pt-decoder.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c index e2f038f84dbc1..e2a6c22959f26 100644 --- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c +++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c @@ -1063,6 +1063,8 @@ static bool intel_pt_fup_event(struct intel_pt_decoder *decoder) decoder->set_fup_tx_flags = false; decoder->tx_flags = decoder->fup_tx_flags; decoder->state.type = INTEL_PT_TRANSACTION; + if (decoder->fup_tx_flags & INTEL_PT_ABORT_TX) + decoder->state.type |= INTEL_PT_BRANCH; decoder->state.from_ip = decoder->ip; decoder->state.to_ip = 0; decoder->state.flags = decoder->fup_tx_flags; @@ -1129,8 +1131,10 @@ static int intel_pt_walk_fup(struct intel_pt_decoder *decoder) return 0; if (err == -EAGAIN || intel_pt_fup_with_nlip(decoder, &intel_pt_insn, ip, err)) { + bool no_tip = decoder->pkt_state != INTEL_PT_STATE_FUP; + decoder->pkt_state = INTEL_PT_STATE_IN_SYNC; - if (intel_pt_fup_event(decoder)) + if (intel_pt_fup_event(decoder) && no_tip) return 0; return -EAGAIN; }

From: Johan Hovold johan@kernel.org

commit 1a6e9a9c68c1f183872e4bcc947382111c2e04eb upstream.

The direction of the pipe argument must match the request-type direction bit or control requests may fail depending on the host-controller-driver implementation.

Fix the tiocmset and rfkill requests which erroneously used usb_rcvctrlpipe().

Fixes: 72dc1c096c70 ("HSO: add option hso driver") Cc: stable@vger.kernel.org # 2.6.27 Signed-off-by: Johan Hovold johan@kernel.org Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/net/usb/hso.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c index 94f1c2422f844..a66077f514572 100644 --- a/drivers/net/usb/hso.c +++ b/drivers/net/usb/hso.c @@ -1703,7 +1703,7 @@ static int hso_serial_tiocmset(struct tty_struct *tty, spin_unlock_irqrestore(&serial->serial_lock, flags);

return usb_control_msg(serial->parent->usb, - usb_rcvctrlpipe(serial->parent->usb, 0), 0x22, + usb_sndctrlpipe(serial->parent->usb, 0), 0x22, 0x21, val, if_num, NULL, 0, USB_CTRL_SET_TIMEOUT); } @@ -2450,7 +2450,7 @@ static int hso_rfkill_set_block(void *data, bool blocked) if (hso_dev->usb_gone) rv = 0; else - rv = usb_control_msg(hso_dev->usb, usb_rcvctrlpipe(hso_dev->usb, 0), + rv = usb_control_msg(hso_dev->usb, usb_sndctrlpipe(hso_dev->usb, 0), enabled ? 0x82 : 0x81, 0x40, 0, 0, NULL, 0, USB_CTRL_SET_TIMEOUT); mutex_unlock(&hso_dev->mutex);

From: Mathy Vanhoef Mathy.Vanhoef@kuleuven.be

commit 94034c40ab4a3fcf581fbc7f8fdf4e29943c4a24 upstream.

Simultaneously prevent mixed key attacks (CVE-2020-24587) and fragment cache attacks (CVE-2020-24586). This is accomplished by assigning a unique color to every key (per interface) and using this to track which key was used to decrypt a fragment. When reassembling frames, it is now checked whether all fragments were decrypted using the same key.

To assure that fragment cache attacks are also prevented, the ID that is assigned to keys is unique even over (re)associations and (re)connects. This means fragments separated by a (re)association or (re)connect will not be reassembled. Because mac80211 now also prevents the reassembly of mixed encrypted and plaintext fragments, all cache attacks are prevented.

Cc: stable@vger.kernel.org Signed-off-by: Mathy Vanhoef Mathy.Vanhoef@kuleuven.be Link: https://lore.kernel.org/r/20210511200110.3f8290e59823.I622a67769ed39257327a3... Signed-off-by: Johannes Berg johannes.berg@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- net/mac80211/ieee80211_i.h | 1 + net/mac80211/key.c | 7 +++++++ net/mac80211/key.h | 2 ++ net/mac80211/rx.c | 6 ++++++ 4 files changed, 16 insertions(+)

diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index fc715bba59146..db113013416c2 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -100,6 +100,7 @@ struct ieee80211_fragment_entry { u8 rx_queue; bool check_sequential_pn; /* needed for CCMP/GCMP */ u8 last_pn[6]; /* PN of the last fragment if CCMP was used */ + unsigned int key_color; };

diff --git a/net/mac80211/key.c b/net/mac80211/key.c index f20bb39f492da..6775d6cb7d3d4 100644 --- a/net/mac80211/key.c +++ b/net/mac80211/key.c @@ -653,6 +653,7 @@ int ieee80211_key_link(struct ieee80211_key *key, struct ieee80211_sub_if_data *sdata, struct sta_info *sta) { + static atomic_t key_color = ATOMIC_INIT(0); struct ieee80211_local *local = sdata->local; struct ieee80211_key *old_key; int idx = key->conf.keyidx; @@ -688,6 +689,12 @@ int ieee80211_key_link(struct ieee80211_key *key, key->sdata = sdata; key->sta = sta;

+ /* + * Assign a unique ID to every key so we can easily prevent mixed + * key and fragment cache attacks. + */ + key->color = atomic_inc_return(&key_color); + increment_tailroom_need_count(sdata);

ieee80211_key_replace(sdata, sta, pairwise, old_key, key); diff --git a/net/mac80211/key.h b/net/mac80211/key.h index ebdb80b85dc3a..d8e187bcb7510 100644 --- a/net/mac80211/key.h +++ b/net/mac80211/key.h @@ -127,6 +127,8 @@ struct ieee80211_key { } debugfs; #endif

+ unsigned int color; + /* * key config, must be last because it contains key * material as variable length member diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index bf100fe67439b..83d8b27167f16 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -2139,6 +2139,7 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) * next fragment has a sequential PN value. */ entry->check_sequential_pn = true; + entry->key_color = rx->key->color; memcpy(entry->last_pn, rx->key->u.ccmp.rx_pn[queue], IEEE80211_CCMP_PN_LEN); @@ -2176,6 +2177,11 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx)

if (!requires_sequential_pn(rx, fc)) return RX_DROP_UNUSABLE; + + /* Prevent mixed key and fragment cache attacks */ + if (entry->key_color != rx->key->color) + return RX_DROP_UNUSABLE; + memcpy(pn, entry->last_pn, IEEE80211_CCMP_PN_LEN); for (i = IEEE80211_CCMP_PN_LEN - 1; i >= 0; i--) { pn[i]++;

From: Mathy Vanhoef Mathy.Vanhoef@kuleuven.be

commit 2b8a1fee3488c602aca8bea004a087e60806a5cf upstream.

Mitigate A-MSDU injection attacks (CVE-2020-24588) by detecting if the destination address of a subframe equals an RFC1042 (i.e., LLC/SNAP) header, and if so dropping the complete A-MSDU frame. This mitigates known attacks, although new (unknown) aggregation-based attacks may remain possible.

This defense works because in A-MSDU aggregation injection attacks, a normal encrypted Wi-Fi frame is turned into an A-MSDU frame. This means the first 6 bytes of the first A-MSDU subframe correspond to an RFC1042 header. In other words, the destination MAC address of the first A-MSDU subframe contains the start of an RFC1042 header during an aggregation attack. We can detect this and thereby prevent this specific attack. For details, see Section 7.2 of "Fragment and Forge: Breaking Wi-Fi Through Frame Aggregation and Fragmentation".

Note that for kernel 4.9 and above this patch depends on "mac80211: properly handle A-MSDUs that start with a rfc1042 header". Otherwise this patch has no impact and attacks will remain possible.

Cc: stable@vger.kernel.org Signed-off-by: Mathy Vanhoef Mathy.Vanhoef@kuleuven.be Link: https://lore.kernel.org/r/20210511200110.25d93176ddaf.I9e265b597f2cd23eb4457... Signed-off-by: Johannes Berg johannes.berg@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- net/wireless/util.c | 3 +++ 1 file changed, 3 insertions(+)

diff --git a/net/wireless/util.c b/net/wireless/util.c index 7fe8b2691dcdf..973425db6bf33 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -652,6 +652,9 @@ void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list, remaining = skb->len - offset; if (subframe_len > remaining) goto purge; + /* mitigate A-MSDU aggregation injection attacks */ + if (ether_addr_equal(eth.h_dest, rfc1042_header)) + goto purge;

offset += sizeof(struct ethhdr); last = remaining <= subframe_len + padding;

From: Johannes Berg johannes.berg@intel.com

commit 3a11ce08c45b50d69c891d71760b7c5b92074709 upstream.

Prior patches protected against fragmentation cache attacks by coloring keys, but this shows that it can lead to issues when multiple stations use the same sequence number. Add a fragment cache to struct sta_info (in addition to the one in the interface) to separate fragments for different stations properly.

This then automatically clear most of the fragment cache when a station disconnects (or reassociates) from an AP, or when client interfaces disconnect from the network, etc.

On the way, also fix the comment there since this brings us in line with the recommendation in 802.11-2016 ("An AP should support ..."). Additionally, remove a useless condition (since there's no problem purging an already empty list).

Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20210511200110.fc35046b0d52.I1ef101e3784d13e8f6600... Signed-off-by: Johannes Berg johannes.berg@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- net/mac80211/ieee80211_i.h | 26 ++++-------------------- net/mac80211/iface.c | 11 +++------- net/mac80211/rx.c | 41 ++++++++++++++++++++++++++++---------- net/mac80211/sta_info.c | 6 +++++- net/mac80211/sta_info.h | 31 ++++++++++++++++++++++++++++ 5 files changed, 73 insertions(+), 42 deletions(-)

diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index db113013416c2..6bfd31657f40d 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -53,12 +53,6 @@ struct ieee80211_local; #define IEEE80211_ENCRYPT_HEADROOM 8 #define IEEE80211_ENCRYPT_TAILROOM 18

-/* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent - * reception of at least three fragmented frames. This limit can be increased - * by changing this define, at the cost of slower frame reassembly and - * increased memory use (about 2 kB of RAM per entry). */ -#define IEEE80211_FRAGMENT_MAX 4 - /* power level hasn't been configured (or set to automatic) */ #define IEEE80211_UNSET_POWER_LEVEL INT_MIN

@@ -91,19 +85,6 @@ extern const u8 ieee80211_ac_to_qos_mask[IEEE80211_NUM_ACS];

#define IEEE80211_MAX_NAN_INSTANCE_ID 255

-struct ieee80211_fragment_entry { - struct sk_buff_head skb_list; - unsigned long first_frag_time; - u16 seq; - u16 extra_len; - u16 last_frag; - u8 rx_queue; - bool check_sequential_pn; /* needed for CCMP/GCMP */ - u8 last_pn[6]; /* PN of the last fragment if CCMP was used */ - unsigned int key_color; -}; - - struct ieee80211_bss { u32 device_ts_beacon, device_ts_presp;

@@ -885,9 +866,7 @@ struct ieee80211_sub_if_data {

char name[IFNAMSIZ];

- /* Fragment table for host-based reassembly */ - struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX]; - unsigned int fragment_next; + struct ieee80211_fragment_cache frags;

/* TID bitmap for NoAck policy */ u16 noack_map; @@ -2205,4 +2184,7 @@ extern const struct ethtool_ops ieee80211_ethtool_ops; #define debug_noinline #endif

+void ieee80211_init_frag_cache(struct ieee80211_fragment_cache *cache); +void ieee80211_destroy_frag_cache(struct ieee80211_fragment_cache *cache); + #endif /* IEEE80211_I_H */ diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 511ca6f74239d..358028a09ce4d 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -7,7 +7,7 @@ * Copyright 2008, Johannes Berg johannes@sipsolutions.net * Copyright 2013-2014 Intel Mobile Communications GmbH * Copyright (c) 2016 Intel Deutschland GmbH - * Copyright (C) 2018 Intel Corporation + * Copyright (C) 2018-2021 Intel Corporation * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -1111,16 +1111,12 @@ static void ieee80211_set_multicast_list(struct net_device *dev) */ static void ieee80211_teardown_sdata(struct ieee80211_sub_if_data *sdata) { - int i; - /* free extra data */ ieee80211_free_keys(sdata, false);

ieee80211_debugfs_remove_netdev(sdata);

- for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++) - __skb_queue_purge(&sdata->fragments[i].skb_list); - sdata->fragment_next = 0; + ieee80211_destroy_frag_cache(&sdata->frags);

if (ieee80211_vif_is_mesh(&sdata->vif)) ieee80211_mesh_teardown_sdata(sdata); @@ -1832,8 +1828,7 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name, sdata->wdev.wiphy = local->hw.wiphy; sdata->local = local;

- for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++) - skb_queue_head_init(&sdata->fragments[i].skb_list); + ieee80211_init_frag_cache(&sdata->frags);

INIT_LIST_HEAD(&sdata->key_list);

diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 2e79182afc4f6..21ce593c732bc 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -2009,19 +2009,34 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx) return result; }

+void ieee80211_init_frag_cache(struct ieee80211_fragment_cache *cache) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(cache->entries); i++) + skb_queue_head_init(&cache->entries[i].skb_list); +} + +void ieee80211_destroy_frag_cache(struct ieee80211_fragment_cache *cache) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(cache->entries); i++) + __skb_queue_purge(&cache->entries[i].skb_list); +} + static inline struct ieee80211_fragment_entry * -ieee80211_reassemble_add(struct ieee80211_sub_if_data *sdata, +ieee80211_reassemble_add(struct ieee80211_fragment_cache *cache, unsigned int frag, unsigned int seq, int rx_queue, struct sk_buff **skb) { struct ieee80211_fragment_entry *entry;

- entry = &sdata->fragments[sdata->fragment_next++]; - if (sdata->fragment_next >= IEEE80211_FRAGMENT_MAX) - sdata->fragment_next = 0; + entry = &cache->entries[cache->next++]; + if (cache->next >= IEEE80211_FRAGMENT_MAX) + cache->next = 0;

- if (!skb_queue_empty(&entry->skb_list)) - __skb_queue_purge(&entry->skb_list); + __skb_queue_purge(&entry->skb_list);

__skb_queue_tail(&entry->skb_list, *skb); /* no need for locking */ *skb = NULL; @@ -2036,14 +2051,14 @@ ieee80211_reassemble_add(struct ieee80211_sub_if_data *sdata, }

static inline struct ieee80211_fragment_entry * -ieee80211_reassemble_find(struct ieee80211_sub_if_data *sdata, +ieee80211_reassemble_find(struct ieee80211_fragment_cache *cache, unsigned int frag, unsigned int seq, int rx_queue, struct ieee80211_hdr *hdr) { struct ieee80211_fragment_entry *entry; int i, idx;

- idx = sdata->fragment_next; + idx = cache->next; for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++) { struct ieee80211_hdr *f_hdr;

@@ -2051,7 +2066,7 @@ ieee80211_reassemble_find(struct ieee80211_sub_if_data *sdata, if (idx < 0) idx = IEEE80211_FRAGMENT_MAX - 1;

- entry = &sdata->fragments[idx]; + entry = &cache->entries[idx]; if (skb_queue_empty(&entry->skb_list) || entry->seq != seq || entry->rx_queue != rx_queue || entry->last_frag + 1 != frag) @@ -2091,6 +2106,7 @@ static bool requires_sequential_pn(struct ieee80211_rx_data *rx, __le16 fc) static ieee80211_rx_result debug_noinline ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) { + struct ieee80211_fragment_cache *cache = &rx->sdata->frags; struct ieee80211_hdr *hdr; u16 sc; __le16 fc; @@ -2112,6 +2128,9 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) goto out_no_led; }

+ if (rx->sta) + cache = &rx->sta->frags; + if (likely(!ieee80211_has_morefrags(fc) && frag == 0)) goto out;

@@ -2130,7 +2149,7 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx)

if (frag == 0) { /* This is the first fragment of a new frame. */ - entry = ieee80211_reassemble_add(rx->sdata, frag, seq, + entry = ieee80211_reassemble_add(cache, frag, seq, rx->seqno_idx, &(rx->skb)); if (requires_sequential_pn(rx, fc)) { int queue = rx->security_idx; @@ -2158,7 +2177,7 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) /* This is a fragment for a frame that should already be pending in * fragment cache. Add this fragment to the end of the pending entry. */ - entry = ieee80211_reassemble_find(rx->sdata, frag, seq, + entry = ieee80211_reassemble_find(cache, frag, seq, rx->seqno_idx, hdr); if (!entry) { I802_DEBUG_INC(rx->local->rx_handlers_drop_defrag); diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index c0fae954082b7..71c6a462277fa 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -3,7 +3,7 @@ * Copyright 2006-2007 Jiri Benc jbenc@suse.cz * Copyright 2013-2014 Intel Mobile Communications GmbH * Copyright (C) 2015 - 2017 Intel Deutschland GmbH - * Copyright (C) 2018-2020 Intel Corporation + * Copyright (C) 2018-2021 Intel Corporation * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -369,6 +369,8 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,

u64_stats_init(&sta->rx_stats.syncp);

+ ieee80211_init_frag_cache(&sta->frags); + sta->sta_state = IEEE80211_STA_NONE;

/* Mark TID as unreserved */ @@ -1032,6 +1034,8 @@ static void __sta_info_destroy_part2(struct sta_info *sta) rate_control_remove_sta_debugfs(sta); ieee80211_sta_debugfs_remove(sta);

+ ieee80211_destroy_frag_cache(&sta->frags); + cleanup_single_sta(sta); }

diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index 9a04327d71d1d..b6e37af561469 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -2,6 +2,7 @@ * Copyright 2002-2005, Devicescape Software, Inc. * Copyright 2013-2014 Intel Mobile Communications GmbH * Copyright(c) 2015-2017 Intel Deutschland GmbH + * Copyright(c) 2020-2021 Intel Corporation * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -411,6 +412,33 @@ struct ieee80211_sta_rx_stats { u64 msdu[IEEE80211_NUM_TIDS + 1]; };

+/* + * IEEE 802.11-2016 (10.6 "Defragmentation") recommends support for "concurrent + * reception of at least one MSDU per access category per associated STA" + * on APs, or "at least one MSDU per access category" on other interface types. + * + * This limit can be increased by changing this define, at the cost of slower + * frame reassembly and increased memory use while fragments are pending. + */ +#define IEEE80211_FRAGMENT_MAX 4 + +struct ieee80211_fragment_entry { + struct sk_buff_head skb_list; + unsigned long first_frag_time; + u16 seq; + u16 extra_len; + u16 last_frag; + u8 rx_queue; + bool check_sequential_pn; /* needed for CCMP/GCMP */ + u8 last_pn[6]; /* PN of the last fragment if CCMP was used */ + unsigned int key_color; +}; + +struct ieee80211_fragment_cache { + struct ieee80211_fragment_entry entries[IEEE80211_FRAGMENT_MAX]; + unsigned int next; +}; + /* * The bandwidth threshold below which the per-station CoDel parameters will be * scaled to be more lenient (to prevent starvation of slow stations). This @@ -482,6 +510,7 @@ struct ieee80211_sta_rx_stats { * @pcpu_rx_stats: per-CPU RX statistics, assigned only if the driver needs * this (by advertising the USES_RSS hw flag) * @status_stats: TX status statistics + * @frags: fragment cache */ struct sta_info { /* General information, mostly static */ @@ -583,6 +612,8 @@ struct sta_info {

struct cfg80211_chan_def tdls_chandef;

+ struct ieee80211_fragment_cache frags; + /* keep last! */ struct ieee80211_sta sta; };

From: Johannes Berg johannes.berg@intel.com

commit 7e44a0b597f04e67eee8cdcbe7ee706c6f5de38b upstream.

Similar to the issues fixed in previous patches, TKIP and WEP should be protected even if for TKIP we have the Michael MIC protecting it, and WEP is broken anyway.

However, this also somewhat protects potential other algorithms that drivers might implement.

Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20210511200110.430e8c202313.Ia37e4e5b6b3eaab1a5ae0... Signed-off-by: Johannes Berg johannes.berg@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- net/mac80211/rx.c | 12 ++++++++++++ net/mac80211/sta_info.h | 3 ++- 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index bfb9d9db8aff3..6db71e0b83767 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -2158,6 +2158,7 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) * next fragment has a sequential PN value. */ entry->check_sequential_pn = true; + entry->is_protected = true; entry->key_color = rx->key->color; memcpy(entry->last_pn, rx->key->u.ccmp.rx_pn[queue], @@ -2170,6 +2171,9 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) sizeof(rx->key->u.gcmp.rx_pn[queue])); BUILD_BUG_ON(IEEE80211_CCMP_PN_LEN != IEEE80211_GCMP_PN_LEN); + } else if (rx->key && ieee80211_has_protected(fc)) { + entry->is_protected = true; + entry->key_color = rx->key->color; } return RX_QUEUED; } @@ -2211,6 +2215,14 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) if (memcmp(pn, rpn, IEEE80211_CCMP_PN_LEN)) return RX_DROP_UNUSABLE; memcpy(entry->last_pn, pn, IEEE80211_CCMP_PN_LEN); + } else if (entry->is_protected && + (!rx->key || !ieee80211_has_protected(fc) || + rx->key->color != entry->key_color)) { + /* Drop this as a mixed key or fragment cache attack, even + * if for TKIP Michael MIC should protect us, and WEP is a + * lost cause anyway. + */ + return RX_DROP_UNUSABLE; }

skb_pull(rx->skb, ieee80211_hdrlen(fc)); diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index b6e37af561469..c33bc5fc0f2d8 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -429,7 +429,8 @@ struct ieee80211_fragment_entry { u16 extra_len; u16 last_frag; u8 rx_queue; - bool check_sequential_pn; /* needed for CCMP/GCMP */ + u8 check_sequential_pn:1, /* needed for CCMP/GCMP */ + is_protected:1; u8 last_pn[6]; /* PN of the last fragment if CCMP was used */ unsigned int key_color; };

From: Wen Gong wgong@codeaurora.org

commit 3edc6b0d6c061a70d8ca3c3c72eb1f58ce29bfb1 upstream.

For some chips/drivers, e.g., QCA6174 with ath10k, the decryption is done by the hardware, and the Protected bit in the Frame Control field is cleared in the lower level driver before the frame is passed to mac80211. In such cases, the condition for ieee80211_has_protected() is not met in ieee80211_rx_h_defragment() of mac80211 and the new security validation steps are not executed.

Extend mac80211 to cover the case where the Protected bit has been cleared, but the frame is indicated as having been decrypted by the hardware. This extends protection against mixed key and fragment cache attack for additional drivers/chips. This fixes CVE-2020-24586 and CVE-2020-24587 for such cases.

Tested-on: QCA6174 hw3.2 PCI WLAN.RM.4.4.1-00110-QCARMSWP-1

Cc: stable@vger.kernel.org Signed-off-by: Wen Gong wgong@codeaurora.org Signed-off-by: Jouni Malinen jouni@codeaurora.org Link: https://lore.kernel.org/r/20210511200110.037aa5ca0390.I7bb888e2965a0db02a670... Signed-off-by: Johannes Berg johannes.berg@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- net/mac80211/rx.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 6705a104e4a35..2ba19decb1261 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -2113,6 +2113,7 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) unsigned int frag, seq; struct ieee80211_fragment_entry *entry; struct sk_buff *skb; + struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(rx->skb);

hdr = (struct ieee80211_hdr *)rx->skb->data; fc = hdr->frame_control; @@ -2171,7 +2172,9 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) sizeof(rx->key->u.gcmp.rx_pn[queue])); BUILD_BUG_ON(IEEE80211_CCMP_PN_LEN != IEEE80211_GCMP_PN_LEN); - } else if (rx->key && ieee80211_has_protected(fc)) { + } else if (rx->key && + (ieee80211_has_protected(fc) || + (status->flag & RX_FLAG_DECRYPTED))) { entry->is_protected = true; entry->key_color = rx->key->color; } @@ -2216,13 +2219,19 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) return RX_DROP_UNUSABLE; memcpy(entry->last_pn, pn, IEEE80211_CCMP_PN_LEN); } else if (entry->is_protected && - (!rx->key || !ieee80211_has_protected(fc) || + (!rx->key || + (!ieee80211_has_protected(fc) && + !(status->flag & RX_FLAG_DECRYPTED)) || rx->key->color != entry->key_color)) { /* Drop this as a mixed key or fragment cache attack, even * if for TKIP Michael MIC should protect us, and WEP is a * lost cause anyway. */ return RX_DROP_UNUSABLE; + } else if (entry->is_protected && rx->key && + entry->key_color != rx->key->color && + (status->flag & RX_FLAG_DECRYPTED)) { + return RX_DROP_UNUSABLE; }

skb_pull(rx->skb, ieee80211_hdrlen(fc));

From: Mikulas Patocka mpatocka@redhat.com

commit 7e768532b2396bcb7fbf6f82384b85c0f1d2f197 upstream.

If an origin target has no snapshots, o->split_boundary is set to 0. This causes BUG_ON(sectors <= 0) in block/bio.c:bio_split().

Fix this by initializing chunk_size, and in turn split_boundary, to rounddown_pow_of_two(UINT_MAX) -- the largest power of two that fits into "unsigned" type.

Signed-off-by: Mikulas Patocka mpatocka@redhat.com Cc: stable@vger.kernel.org Signed-off-by: Mike Snitzer snitzer@redhat.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/md/dm-snap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c index 7d96836294713..52101e5c72588 100644 --- a/drivers/md/dm-snap.c +++ b/drivers/md/dm-snap.c @@ -794,7 +794,7 @@ static int dm_add_exception(void *context, chunk_t old, chunk_t new) static uint32_t __minimum_chunk_size(struct origin *o) { struct dm_snapshot *snap; - unsigned chunk_size = 0; + unsigned chunk_size = rounddown_pow_of_two(UINT_MAX);

if (o) list_for_each_entry(snap, &o->snapshots, list)

From: Dongliang Mu mudongliangabcd@gmail.com

commit dcb4b8ad6a448532d8b681b5d1a7036210b622de upstream.

uss720_probe forgets to decrease the refcount of usbdev in uss720_probe. Fix this by decreasing the refcount of usbdev by usb_put_dev.

BUG: memory leak unreferenced object 0xffff888101113800 (size 2048): comm "kworker/0:1", pid 7, jiffies 4294956777 (age 28.870s) hex dump (first 32 bytes): ff ff ff ff 31 00 00 00 00 00 00 00 00 00 00 00 ....1........... 00 00 00 00 00 00 00 00 00 00 00 00 03 00 00 00 ................ backtrace: [<ffffffff82b8e822>] kmalloc include/linux/slab.h:554 [inline] [<ffffffff82b8e822>] kzalloc include/linux/slab.h:684 [inline] [<ffffffff82b8e822>] usb_alloc_dev+0x32/0x450 drivers/usb/core/usb.c:582 [<ffffffff82b98441>] hub_port_connect drivers/usb/core/hub.c:5129 [inline] [<ffffffff82b98441>] hub_port_connect_change drivers/usb/core/hub.c:5363 [inline] [<ffffffff82b98441>] port_event drivers/usb/core/hub.c:5509 [inline] [<ffffffff82b98441>] hub_event+0x1171/0x20c0 drivers/usb/core/hub.c:5591 [<ffffffff81259229>] process_one_work+0x2c9/0x600 kernel/workqueue.c:2275 [<ffffffff81259b19>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2421 [<ffffffff81261228>] kthread+0x178/0x1b0 kernel/kthread.c:292 [<ffffffff8100227f>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

Fixes: 0f36163d3abe ("[PATCH] usb: fix uss720 schedule with interrupts off") Cc: stable stable@vger.kernel.org Reported-by: syzbot+636c58f40a86b4a879e7@syzkaller.appspotmail.com Signed-off-by: Dongliang Mu mudongliangabcd@gmail.com Link: https://lore.kernel.org/r/20210514124348.6587-1-mudongliangabcd@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/usb/misc/uss720.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/misc/uss720.c b/drivers/usb/misc/uss720.c index b5d6616442635..748139d262633 100644 --- a/drivers/usb/misc/uss720.c +++ b/drivers/usb/misc/uss720.c @@ -736,6 +736,7 @@ static int uss720_probe(struct usb_interface *intf, parport_announce_port(pp);

usb_set_intfdata(intf, pp); + usb_put_dev(usbdev); return 0;

probe_abort:

From: Alexander Usyskin alexander.usyskin@intel.com

commit bbf0a94744edfeee298e4a9ab6fd694d639a5cdf upstream.

A rx flow control waiting in the control queue may block autosuspend. Re-request autosuspend after flow control been sent to unblock the transition to the low power state.

Cc: stable@vger.kernel.org Signed-off-by: Alexander Usyskin alexander.usyskin@intel.com Signed-off-by: Tomas Winkler tomas.winkler@intel.com Link: https://lore.kernel.org/r/20210526193334.445759-1-tomas.winkler@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/misc/mei/interrupt.c | 3 +++ 1 file changed, 3 insertions(+)

diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c index 5a661cbdf2aef..66f4d12d00602 100644 --- a/drivers/misc/mei/interrupt.c +++ b/drivers/misc/mei/interrupt.c @@ -224,6 +224,9 @@ static int mei_cl_irq_read(struct mei_cl *cl, struct mei_cl_cb *cb, return ret; }

+ pm_runtime_mark_last_busy(dev->dev); + pm_request_autosuspend(dev->dev); + list_move_tail(&cb->list, &cl->rd_pending);

return 0;

From: YueHaibing yuehaibing@huawei.com

commit 4ed243b1da169bcbc1ec5507867e56250c5f1ff9 upstream.

Set error code while device ID query failed.

Fixes: 88bc30548aae ("IIO: ADC: New driver for AD7792/AD7793 3 Channel SPI ADC") Signed-off-by: YueHaibing yuehaibing@huawei.com Cc: Stable@vger.kernel.org Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/iio/adc/ad7793.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/drivers/iio/adc/ad7793.c b/drivers/iio/adc/ad7793.c index 23a6e7baa396b..b5952ee3031c7 100644 --- a/drivers/iio/adc/ad7793.c +++ b/drivers/iio/adc/ad7793.c @@ -279,6 +279,7 @@ static int ad7793_setup(struct iio_dev *indio_dev, id &= AD7793_ID_MASK;

if (id != st->chip_info->id) { + ret = -ENODEV; dev_err(&st->sd.spi->dev, "device ID query failed\n"); goto out; }

From: Alan Stern stern@rowland.harvard.edu

commit 4f2629ea67e7225c3fd292c7fe4f5b3c9d6392de upstream.

Syzbot found that the kernel generates a WARNing if the user tries to submit a bulk transfer through usbfs with a buffer that is way too large. This isn't a bug in the kernel; it's merely an invalid request from the user and the usbfs code does handle it correctly.

In theory the same thing can happen with async transfers, or with the packet descriptor table for isochronous transfers.

To prevent the MM subsystem from complaining about these bad allocation requests, add the __GFP_NOWARN flag to the kmalloc calls for these buffers.

CC: Andrew Morton akpm@linux-foundation.org CC: stable@vger.kernel.org Reported-and-tested-by: syzbot+882a85c0c8ec4a3e2281@syzkaller.appspotmail.com Signed-off-by: Alan Stern stern@rowland.harvard.edu Link: https://lore.kernel.org/r/20210518201835.GA1140918@rowland.harvard.edu Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/usb/core/devio.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index aedc20851411b..2728c0d0a20b8 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -1189,7 +1189,12 @@ static int proc_bulk(struct usb_dev_state *ps, void __user *arg) ret = usbfs_increase_memory_usage(len1 + sizeof(struct urb)); if (ret) return ret; - tbuf = kmalloc(len1, GFP_KERNEL); + + /* + * len1 can be almost arbitrarily large. Don't WARN if it's + * too big, just fail the request. + */ + tbuf = kmalloc(len1, GFP_KERNEL | __GFP_NOWARN); if (!tbuf) { ret = -ENOMEM; goto done; @@ -1630,7 +1635,7 @@ static int proc_do_submiturb(struct usb_dev_state *ps, struct usbdevfs_urb *uurb if (num_sgs) { as->urb->sg = kmalloc_array(num_sgs, sizeof(struct scatterlist), - GFP_KERNEL); + GFP_KERNEL | __GFP_NOWARN); if (!as->urb->sg) { ret = -ENOMEM; goto error; @@ -1665,7 +1670,7 @@ static int proc_do_submiturb(struct usb_dev_state *ps, struct usbdevfs_urb *uurb (uurb_start - as->usbm->vm_start); } else { as->urb->transfer_buffer = kmalloc(uurb->buffer_length, - GFP_KERNEL); + GFP_KERNEL | __GFP_NOWARN); if (!as->urb->transfer_buffer) { ret = -ENOMEM; goto error;

From: Zheyu Ma zheyuma97@gmail.com

commit 016002848c82eeb5d460489ce392d91fe18c475c upstream.

In 'rp2_probe', the driver registers 'rp2_uart_interrupt' then calls 'rp2_fw_cb' through 'request_firmware_nowait'. In 'rp2_fw_cb', if the firmware don't exists, function just return without initializing ports of 'rp2_card'. But now the interrupt handler function has been registered, and when an interrupt comes, 'rp2_uart_interrupt' may access those ports then causing NULL pointer dereference or other bugs.

Because the driver does some initialization work in 'rp2_fw_cb', in order to make the driver ready to handle interrupts, 'request_firmware' should be used instead of asynchronous 'request_firmware_nowait'.

This report reveals it:

INFO: trying to register non-static key. the code is fine but needs lockdep annotation. turning off the locking correctness validator. CPU: 2 PID: 0 Comm: swapper/2 Not tainted 4.19.177-gdba4159c14ef-dirty #45 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59- gc9ba5276e321-prebuilt.qemu.org 04/01/2014 Call Trace: <IRQ> __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xec/0x156 lib/dump_stack.c:118 assign_lock_key kernel/locking/lockdep.c:727 [inline] register_lock_class+0x14e5/0x1ba0 kernel/locking/lockdep.c:753 __lock_acquire+0x187/0x3750 kernel/locking/lockdep.c:3303 lock_acquire+0x124/0x340 kernel/locking/lockdep.c:3907 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x32/0x50 kernel/locking/spinlock.c:144 spin_lock include/linux/spinlock.h:329 [inline] rp2_ch_interrupt drivers/tty/serial/rp2.c:466 [inline] rp2_asic_interrupt.isra.9+0x15d/0x990 drivers/tty/serial/rp2.c:493 rp2_uart_interrupt+0x49/0xe0 drivers/tty/serial/rp2.c:504 __handle_irq_event_percpu+0xfb/0x770 kernel/irq/handle.c:149 handle_irq_event_percpu+0x79/0x150 kernel/irq/handle.c:189 handle_irq_event+0xac/0x140 kernel/irq/handle.c:206 handle_fasteoi_irq+0x232/0x5c0 kernel/irq/chip.c:725 generic_handle_irq_desc include/linux/irqdesc.h:155 [inline] handle_irq+0x230/0x3a0 arch/x86/kernel/irq_64.c:87 do_IRQ+0xa7/0x1e0 arch/x86/kernel/irq.c:247 common_interrupt+0xf/0xf arch/x86/entry/entry_64.S:670 </IRQ> RIP: 0010:native_safe_halt+0x28/0x30 arch/x86/include/asm/irqflags.h:61 Code: 00 00 55 be 04 00 00 00 48 c7 c7 00 c2 2f 8c 48 89 e5 e8 fb 31 e7 f8 8b 05 75 af 8d 03 85 c0 7e 07 0f 00 2d 8a 61 65 00 fb f4 <5d> c3 90 90 90 90 90 90 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 RSP: 0018:ffff88806b71fcc8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffffde RAX: 0000000000000000 RBX: ffffffff8bde7e48 RCX: ffffffff88a21285 RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff8c2fc200 RBP: ffff88806b71fcc8 R08: fffffbfff185f840 R09: fffffbfff185f840 R10: 0000000000000001 R11: fffffbfff185f840 R12: 0000000000000002 R13: ffffffff8bea18a0 R14: 0000000000000000 R15: 0000000000000000 arch_safe_halt arch/x86/include/asm/paravirt.h:94 [inline] default_idle+0x6f/0x360 arch/x86/kernel/process.c:557 arch_cpu_idle+0xf/0x20 arch/x86/kernel/process.c:548 default_idle_call+0x3b/0x60 kernel/sched/idle.c:93 cpuidle_idle_call kernel/sched/idle.c:153 [inline] do_idle+0x2ab/0x3c0 kernel/sched/idle.c:263 cpu_startup_entry+0xcb/0xe0 kernel/sched/idle.c:369 start_secondary+0x3b8/0x4e0 arch/x86/kernel/smpboot.c:271 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243 BUG: unable to handle kernel NULL pointer dereference at 0000000000000010 PGD 8000000056d27067 P4D 8000000056d27067 PUD 56d28067 PMD 0 Oops: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 2 PID: 0 Comm: swapper/2 Not tainted 4.19.177-gdba4159c14ef-dirty #45 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59- gc9ba5276e321-prebuilt.qemu.org 04/01/2014 RIP: 0010:readl arch/x86/include/asm/io.h:59 [inline] RIP: 0010:rp2_ch_interrupt drivers/tty/serial/rp2.c:472 [inline] RIP: 0010:rp2_asic_interrupt.isra.9+0x181/0x990 drivers/tty/serial/rp2.c: 493 Code: df e8 43 5d c2 05 48 8d 83 e8 01 00 00 48 89 85 60 ff ff ff 48 c1 e8 03 42 80 3c 30 00 0f 85 aa 07 00 00 48 8b 83 e8 01 00 00 <8b> 40 10 89 c1 89 85 68 ff ff ff 48 8b 83 e8 01 00 00 89 48 10 83 RSP: 0018:ffff88806c287cd0 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffff88806ade6820 RCX: ffffffff814300b1 RDX: 1ffff1100d5bcd06 RSI: 0000000000000004 RDI: ffff88806ade6820 RBP: ffff88806c287db8 R08: ffffed100d5bcd05 R09: ffffed100d5bcd05 R10: 0000000000000001 R11: ffffed100d5bcd04 R12: ffffc90001e00000 R13: ffff888069654e10 R14: dffffc0000000000 R15: ffff888069654df0 FS: 0000000000000000(0000) GS:ffff88806c280000(0000) knlGS: 0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000010 CR3: 000000006892c000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <IRQ> rp2_uart_interrupt+0x49/0xe0 drivers/tty/serial/rp2.c:504 __handle_irq_event_percpu+0xfb/0x770 kernel/irq/handle.c:149 handle_irq_event_percpu+0x79/0x150 kernel/irq/handle.c:189 handle_irq_event+0xac/0x140 kernel/irq/handle.c:206 handle_fasteoi_irq+0x232/0x5c0 kernel/irq/chip.c:725 generic_handle_irq_desc include/linux/irqdesc.h:155 [inline] handle_irq+0x230/0x3a0 arch/x86/kernel/irq_64.c:87 do_IRQ+0xa7/0x1e0 arch/x86/kernel/irq.c:247 common_interrupt+0xf/0xf arch/x86/entry/entry_64.S:670 </IRQ> RIP: 0010:native_safe_halt+0x28/0x30 arch/x86/include/asm/irqflags.h:61 Code: 00 00 55 be 04 00 00 00 48 c7 c7 00 c2 2f 8c 48 89 e5 e8 fb 31 e7 f8 8b 05 75 af 8d 03 85 c0 7e 07 0f 00 2d 8a 61 65 00 fb f4 <5d> c3 90 90 90 90 90 90 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 RSP: 0018:ffff88806b71fcc8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffffde RAX: 0000000000000000 RBX: ffffffff8bde7e48 RCX: ffffffff88a21285 RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff8c2fc200 RBP: ffff88806b71fcc8 R08: fffffbfff185f840 R09: fffffbfff185f840 R10: 0000000000000001 R11: fffffbfff185f840 R12: 0000000000000002 R13: ffffffff8bea18a0 R14: 0000000000000000 R15: 0000000000000000 arch_safe_halt arch/x86/include/asm/paravirt.h:94 [inline] default_idle+0x6f/0x360 arch/x86/kernel/process.c:557 arch_cpu_idle+0xf/0x20 arch/x86/kernel/process.c:548 default_idle_call+0x3b/0x60 kernel/sched/idle.c:93 cpuidle_idle_call kernel/sched/idle.c:153 [inline] do_idle+0x2ab/0x3c0 kernel/sched/idle.c:263 cpu_startup_entry+0xcb/0xe0 kernel/sched/idle.c:369 start_secondary+0x3b8/0x4e0 arch/x86/kernel/smpboot.c:271 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243 Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) CR2: 0000000000000010 ---[ end trace 11804dbb55cb1a64 ]--- RIP: 0010:readl arch/x86/include/asm/io.h:59 [inline] RIP: 0010:rp2_ch_interrupt drivers/tty/serial/rp2.c:472 [inline] RIP: 0010:rp2_asic_interrupt.isra.9+0x181/0x990 drivers/tty/serial/rp2.c: 493 Code: df e8 43 5d c2 05 48 8d 83 e8 01 00 00 48 89 85 60 ff ff ff 48 c1 e8 03 42 80 3c 30 00 0f 85 aa 07 00 00 48 8b 83 e8 01 00 00 <8b> 40 10 89 c1 89 85 68 ff ff ff 48 8b 83 e8 01 00 00 89 48 10 83 RSP: 0018:ffff88806c287cd0 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffff88806ade6820 RCX: ffffffff814300b1 RDX: 1ffff1100d5bcd06 RSI: 0000000000000004 RDI: ffff88806ade6820 RBP: ffff88806c287db8 R08: ffffed100d5bcd05 R09: ffffed100d5bcd05 R10: 0000000000000001 R11: ffffed100d5bcd04 R12: ffffc90001e00000 R13: ffff888069654e10 R14: dffffc0000000000 R15: ffff888069654df0 FS: 0000000000000000(0000) GS:ffff88806c280000(0000) knlGS: 0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000010 CR3: 000000006892c000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Reported-by: Zheyu Ma zheyuma97@gmail.com Signed-off-by: Zheyu Ma zheyuma97@gmail.com Link: https://lore.kernel.org/r/1621577323-1541-1-git-send-email-zheyuma97@gmail.c... Cc: stable stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/tty/serial/rp2.c | 52 +++++++++++++--------------------------- 1 file changed, 17 insertions(+), 35 deletions(-)

diff --git a/drivers/tty/serial/rp2.c b/drivers/tty/serial/rp2.c index 5690c09cc0417..944a4c0105795 100644 --- a/drivers/tty/serial/rp2.c +++ b/drivers/tty/serial/rp2.c @@ -195,7 +195,6 @@ struct rp2_card { void __iomem *bar0; void __iomem *bar1; spinlock_t card_lock; - struct completion fw_loaded; };

#define RP_ID(prod) PCI_VDEVICE(RP, (prod)) @@ -664,17 +663,10 @@ static void rp2_remove_ports(struct rp2_card *card) card->initialized_ports = 0; }

-static void rp2_fw_cb(const struct firmware *fw, void *context) +static int rp2_load_firmware(struct rp2_card *card, const struct firmware *fw) { - struct rp2_card *card = context; resource_size_t phys_base; - int i, rc = -ENOENT; - - if (!fw) { - dev_err(&card->pdev->dev, "cannot find '%s' firmware image\n", - RP2_FW_NAME); - goto no_fw; - } + int i, rc = 0;

phys_base = pci_resource_start(card->pdev, 1);

@@ -720,23 +712,13 @@ static void rp2_fw_cb(const struct firmware *fw, void *context) card->initialized_ports++; }

- release_firmware(fw); -no_fw: - /* - * rp2_fw_cb() is called from a workqueue long after rp2_probe() - * has already returned success. So if something failed here, - * we'll just leave the now-dormant device in place until somebody - * unbinds it. - */ - if (rc) - dev_warn(&card->pdev->dev, "driver initialization failed\n"); - - complete(&card->fw_loaded); + return rc; }

static int rp2_probe(struct pci_dev *pdev, const struct pci_device_id *id) { + const struct firmware *fw; struct rp2_card *card; struct rp2_uart_port *ports; void __iomem * const *bars; @@ -747,7 +729,6 @@ static int rp2_probe(struct pci_dev *pdev, return -ENOMEM; pci_set_drvdata(pdev, card); spin_lock_init(&card->card_lock); - init_completion(&card->fw_loaded);

rc = pcim_enable_device(pdev); if (rc) @@ -780,21 +761,23 @@ static int rp2_probe(struct pci_dev *pdev, return -ENOMEM; card->ports = ports;

- rc = devm_request_irq(&pdev->dev, pdev->irq, rp2_uart_interrupt, - IRQF_SHARED, DRV_NAME, card); - if (rc) + rc = request_firmware(&fw, RP2_FW_NAME, &pdev->dev); + if (rc < 0) { + dev_err(&pdev->dev, "cannot find '%s' firmware image\n", + RP2_FW_NAME); return rc; + }

- /* - * Only catastrophic errors (e.g. ENOMEM) are reported here. - * If the FW image is missing, we'll find out in rp2_fw_cb() - * and print an error message. - */ - rc = request_firmware_nowait(THIS_MODULE, 1, RP2_FW_NAME, &pdev->dev, - GFP_KERNEL, card, rp2_fw_cb); + rc = rp2_load_firmware(card, fw); + + release_firmware(fw); + if (rc < 0) + return rc; + + rc = devm_request_irq(&pdev->dev, pdev->irq, rp2_uart_interrupt, + IRQF_SHARED, DRV_NAME, card); if (rc) return rc; - dev_dbg(&pdev->dev, "waiting for firmware blob...\n");

return 0; } @@ -803,7 +786,6 @@ static void rp2_remove(struct pci_dev *pdev) { struct rp2_card *card = pci_get_drvdata(pdev);

- wait_for_completion(&card->fw_loaded); rp2_remove_ports(card); }

From: Daniele Palmas dnlplm@gmail.com

commit e467714f822b5d167a7fb03d34af91b5b6af1827 upstream.

Add support for the following Telit LE910-S1 compositions:

0x7010: rndis, tty, tty, tty 0x7011: ecm, tty, tty, tty

Signed-off-by: Daniele Palmas dnlplm@gmail.com Link: https://lore.kernel.org/r/20210428072634.5091-1-dnlplm@gmail.com Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold johan@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/usb/serial/option.c | 4 ++++ 1 file changed, 4 insertions(+)

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index aeaa3756f6ee8..5e3430d456f36 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -1240,6 +1240,10 @@ static const struct usb_device_id option_ids[] = { .driver_info = NCTRL(0) | RSVD(1) }, { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1901, 0xff), /* Telit LN940 (MBIM) */ .driver_info = NCTRL(0) }, + { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x7010, 0xff), /* Telit LE910-S1 (RNDIS) */ + .driver_info = NCTRL(2) }, + { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x7011, 0xff), /* Telit LE910-S1 (ECM) */ + .driver_info = NCTRL(2) }, { USB_DEVICE(TELIT_VENDOR_ID, 0x9010), /* Telit SBL FN980 flashing device */ .driver_info = NCTRL(0) | ZLP }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_MF622, 0xff, 0xff, 0xff) }, /* ZTE WCDMA products */

From: Zolton Jheng s6668c2t@gmail.com

commit f8e8c1b2f782e7391e8a1c25648ce756e2a7d481 upstream.

This adds the device id for the ADLINK ND-6530 which is a PL2303GC based device.

Signed-off-by: Zolton Jheng s6668c2t@gmail.com Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold johan@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/usb/serial/pl2303.c | 1 + drivers/usb/serial/pl2303.h | 1 + 2 files changed, 2 insertions(+)

diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 2d78ad2842a44..7df0fbede21bc 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -107,6 +107,7 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(SONY_VENDOR_ID, SONY_QN3USB_PRODUCT_ID) }, { USB_DEVICE(SANWA_VENDOR_ID, SANWA_PRODUCT_ID) }, { USB_DEVICE(ADLINK_VENDOR_ID, ADLINK_ND6530_PRODUCT_ID) }, + { USB_DEVICE(ADLINK_VENDOR_ID, ADLINK_ND6530GC_PRODUCT_ID) }, { USB_DEVICE(SMART_VENDOR_ID, SMART_PRODUCT_ID) }, { USB_DEVICE(AT_VENDOR_ID, AT_VTKIT3_PRODUCT_ID) }, { } /* Terminating entry */ diff --git a/drivers/usb/serial/pl2303.h b/drivers/usb/serial/pl2303.h index a897680473a78..3e5442573fe4e 100644 --- a/drivers/usb/serial/pl2303.h +++ b/drivers/usb/serial/pl2303.h @@ -152,6 +152,7 @@ /* ADLINK ND-6530 RS232,RS485 and RS422 adapter */ #define ADLINK_VENDOR_ID 0x0b63 #define ADLINK_ND6530_PRODUCT_ID 0x6530 +#define ADLINK_ND6530GC_PRODUCT_ID 0x653a

/* SMART USB Serial Adapter */ #define SMART_VENDOR_ID 0x0b8c

From: Yoshihiro Shimoda yoshihiro.shimoda.uh@renesas.com

commit e752dbc59e1241b13b8c4f7b6eb582862e7668fe upstream.

The usb3_start_pipen() is called by renesas_usb3_ep_queue() and usb3_request_done_pipen() so that usb3_start_pipen() is possible to cause a race when getting usb3_first_req like below:

renesas_usb3_ep_queue() spin_lock_irqsave() list_add_tail() spin_unlock_irqrestore() usb3_start_pipen() usb3_first_req = usb3_get_request() --- [1] --- interrupt --- usb3_irq_dma_int() usb3_request_done_pipen() usb3_get_request() usb3_start_pipen() usb3_first_req = usb3_get_request() ... (the req is possible to be finished in the interrupt)

The usb3_first_req [1] above may have been finished after the interrupt ended so that this driver caused to start a transfer wrongly. To fix this issue, getting/checking the usb3_first_req are under spin_lock_irqsave() in the same section.

Fixes: 746bfe63bba3 ("usb: gadget: renesas_usb3: add support for Renesas USB3.0 peripheral controller") Cc: stable stable@vger.kernel.org Signed-off-by: Yoshihiro Shimoda yoshihiro.shimoda.uh@renesas.com Link: https://lore.kernel.org/r/20210524060155.1178724-1-yoshihiro.shimoda.uh@rene... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/usb/gadget/udc/renesas_usb3.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/gadget/udc/renesas_usb3.c b/drivers/usb/gadget/udc/renesas_usb3.c index a5254e82d6282..c17d7a71e29a3 100644 --- a/drivers/usb/gadget/udc/renesas_usb3.c +++ b/drivers/usb/gadget/udc/renesas_usb3.c @@ -1466,7 +1466,7 @@ static void usb3_start_pipen(struct renesas_usb3_ep *usb3_ep, struct renesas_usb3_request *usb3_req) { struct renesas_usb3 *usb3 = usb3_ep_to_usb3(usb3_ep); - struct renesas_usb3_request *usb3_req_first = usb3_get_request(usb3_ep); + struct renesas_usb3_request *usb3_req_first; unsigned long flags; int ret = -EAGAIN; u32 enable_bits = 0; @@ -1474,7 +1474,8 @@ static void usb3_start_pipen(struct renesas_usb3_ep *usb3_ep, spin_lock_irqsave(&usb3->lock, flags); if (usb3_ep->halt || usb3_ep->started) goto out; - if (usb3_req != usb3_req_first) + usb3_req_first = __usb3_get_request(usb3_ep); + if (!usb3_req_first || usb3_req != usb3_req_first) goto out;

if (usb3_pn_change(usb3, usb3_ep->num) < 0)

From: Ovidiu Panait ovidiu.panait@windriver.com

After the backport of the changes to fix CVE 2019-7308, the selftests also need to be fixed up, as was done originally in mainline 80c9b2fae87b ("bpf: add various test cases to selftests").

This is a backport of upstream commit 80c9b2fae87b ("bpf: add various test cases to selftests") adapted to 4.19 in order to fix the selftests that began to fail after CVE-2019-7308 fixes.

Suggested-by: Frank van der Linden fllinden@amazon.com Signed-off-by: Ovidiu Panait ovidiu.panait@windriver.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- tools/testing/selftests/bpf/test_verifier.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+)

diff --git a/tools/testing/selftests/bpf/test_verifier.c b/tools/testing/selftests/bpf/test_verifier.c index 9db5a7378f40f..fef1c9e3c4b81 100644 --- a/tools/testing/selftests/bpf/test_verifier.c +++ b/tools/testing/selftests/bpf/test_verifier.c @@ -2448,6 +2448,7 @@ static struct bpf_test tests[] = { }, .result = REJECT, .errstr = "invalid stack off=-79992 size=8", + .errstr_unpriv = "R1 stack pointer arithmetic goes out of range", }, { "PTR_TO_STACK store/load - out of bounds high", @@ -2844,6 +2845,8 @@ static struct bpf_test tests[] = { BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, -8), BPF_EXIT_INSN(), }, + .errstr_unpriv = "R1 stack pointer arithmetic goes out of range", + .result_unpriv = REJECT, .result = ACCEPT, }, { @@ -7457,6 +7460,7 @@ static struct bpf_test tests[] = { }, .fixup_map1 = { 3 }, .errstr = "unbounded min value", + .errstr_unpriv = "R1 has unknown scalar with mixed signed bounds", .result = REJECT, }, { @@ -7481,6 +7485,7 @@ static struct bpf_test tests[] = { }, .fixup_map1 = { 3 }, .errstr = "unbounded min value", + .errstr_unpriv = "R1 has unknown scalar with mixed signed bounds", .result = REJECT, }, { @@ -7507,6 +7512,7 @@ static struct bpf_test tests[] = { }, .fixup_map1 = { 3 }, .errstr = "unbounded min value", + .errstr_unpriv = "R8 has unknown scalar with mixed signed bounds", .result = REJECT, }, { @@ -7532,6 +7538,7 @@ static struct bpf_test tests[] = { }, .fixup_map1 = { 3 }, .errstr = "unbounded min value", + .errstr_unpriv = "R8 has unknown scalar with mixed signed bounds", .result = REJECT, }, { @@ -7580,6 +7587,7 @@ static struct bpf_test tests[] = { }, .fixup_map1 = { 3 }, .errstr = "unbounded min value", + .errstr_unpriv = "R1 has unknown scalar with mixed signed bounds", .result = REJECT, }, { @@ -7651,6 +7659,7 @@ static struct bpf_test tests[] = { }, .fixup_map1 = { 3 }, .errstr = "unbounded min value", + .errstr_unpriv = "R1 has unknown scalar with mixed signed bounds", .result = REJECT, }, { @@ -7702,6 +7711,7 @@ static struct bpf_test tests[] = { }, .fixup_map1 = { 3 }, .errstr = "unbounded min value", + .errstr_unpriv = "R1 has unknown scalar with mixed signed bounds", .result = REJECT, }, { @@ -7729,6 +7739,7 @@ static struct bpf_test tests[] = { }, .fixup_map1 = { 3 }, .errstr = "unbounded min value", + .errstr_unpriv = "R1 has unknown scalar with mixed signed bounds", .result = REJECT, }, { @@ -7755,6 +7766,7 @@ static struct bpf_test tests[] = { }, .fixup_map1 = { 3 }, .errstr = "unbounded min value", + .errstr_unpriv = "R1 has unknown scalar with mixed signed bounds", .result = REJECT, }, { @@ -7784,6 +7796,7 @@ static struct bpf_test tests[] = { }, .fixup_map1 = { 3 }, .errstr = "unbounded min value", + .errstr_unpriv = "R7 has unknown scalar with mixed signed bounds", .result = REJECT, }, { @@ -7814,6 +7827,7 @@ static struct bpf_test tests[] = { }, .fixup_map1 = { 4 }, .errstr = "R0 invalid mem access 'inv'", + .errstr_unpriv = "R1 has unknown scalar with mixed signed bounds", .result = REJECT, }, { @@ -7842,6 +7856,7 @@ static struct bpf_test tests[] = { }, .fixup_map1 = { 3 }, .errstr = "unbounded min value", + .errstr_unpriv = "R1 has unknown scalar with mixed signed bounds", .result = REJECT, .result_unpriv = REJECT, }, @@ -7894,6 +7909,7 @@ static struct bpf_test tests[] = { }, .fixup_map1 = { 3 }, .errstr = "R0 min value is negative, either use unsigned index or do a if (index >=0) check.", + .errstr_unpriv = "R1 has unknown scalar with mixed signed bounds", .result = REJECT, }, { @@ -8266,6 +8282,7 @@ static struct bpf_test tests[] = { }, .fixup_map1 = { 3 }, .errstr = "pointer offset 1073741822", + .errstr_unpriv = "R0 pointer arithmetic of map value goes out of range", .result = REJECT }, { @@ -8287,6 +8304,7 @@ static struct bpf_test tests[] = { }, .fixup_map1 = { 3 }, .errstr = "pointer offset -1073741822", + .errstr_unpriv = "R0 pointer arithmetic of map value goes out of range", .result = REJECT }, { @@ -8458,6 +8476,7 @@ static struct bpf_test tests[] = { BPF_EXIT_INSN() }, .errstr = "fp pointer offset 1073741822", + .errstr_unpriv = "R1 stack pointer arithmetic goes out of range", .result = REJECT }, {

From: Andrey Ignatov rdna@fb.com

commit 6c2afb674dbda9b736b8f09c976516e1e788860a upstream

Test the following narrow loads in test_verifier for context __sk_buff: * off=1, size=1 - ok; * off=2, size=1 - ok; * off=3, size=1 - ok; * off=0, size=2 - ok; * off=1, size=2 - fail; * off=0, size=2 - ok; * off=3, size=2 - fail.

Signed-off-by: Andrey Ignatov rdna@fb.com Signed-off-by: Alexei Starovoitov ast@kernel.org Signed-off-by: Ovidiu Panait ovidiu.panait@windriver.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- tools/testing/selftests/bpf/test_verifier.c | 48 ++++++++++++++++----- 1 file changed, 38 insertions(+), 10 deletions(-)

diff --git a/tools/testing/selftests/bpf/test_verifier.c b/tools/testing/selftests/bpf/test_verifier.c index 29d42f7796d9d..fdc093f298189 100644 --- a/tools/testing/selftests/bpf/test_verifier.c +++ b/tools/testing/selftests/bpf/test_verifier.c @@ -2002,29 +2002,27 @@ static struct bpf_test tests[] = { .result = ACCEPT, }, { - "check skb->hash byte load not permitted 1", + "check skb->hash byte load permitted 1", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, hash) + 1), BPF_EXIT_INSN(), }, - .errstr = "invalid bpf_context access", - .result = REJECT, + .result = ACCEPT, }, { - "check skb->hash byte load not permitted 2", + "check skb->hash byte load permitted 2", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, hash) + 2), BPF_EXIT_INSN(), }, - .errstr = "invalid bpf_context access", - .result = REJECT, + .result = ACCEPT, }, { - "check skb->hash byte load not permitted 3", + "check skb->hash byte load permitted 3", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), #if __BYTE_ORDER == __LITTLE_ENDIAN @@ -2036,8 +2034,7 @@ static struct bpf_test tests[] = { #endif BPF_EXIT_INSN(), }, - .errstr = "invalid bpf_context access", - .result = REJECT, + .result = ACCEPT, }, { "check cb access: byte, wrong type", @@ -2149,7 +2146,7 @@ static struct bpf_test tests[] = { .result = ACCEPT, }, { - "check skb->hash half load not permitted", + "check skb->hash half load permitted 2", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), #if __BYTE_ORDER == __LITTLE_ENDIAN @@ -2158,6 +2155,37 @@ static struct bpf_test tests[] = { #else BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, hash)), +#endif + BPF_EXIT_INSN(), + }, + .result = ACCEPT, + }, + { + "check skb->hash half load not permitted, unaligned 1", + .insns = { + BPF_MOV64_IMM(BPF_REG_0, 0), +#if __BYTE_ORDER == __LITTLE_ENDIAN + BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, + offsetof(struct __sk_buff, hash) + 1), +#else + BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, + offsetof(struct __sk_buff, hash) + 3), +#endif + BPF_EXIT_INSN(), + }, + .errstr = "invalid bpf_context access", + .result = REJECT, + }, + { + "check skb->hash half load not permitted, unaligned 3", + .insns = { + BPF_MOV64_IMM(BPF_REG_0, 0), +#if __BYTE_ORDER == __LITTLE_ENDIAN + BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, + offsetof(struct __sk_buff, hash) + 3), +#else + BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, + offsetof(struct __sk_buff, hash) + 1), #endif BPF_EXIT_INSN(), },

From: Alexei Starovoitov ast@kernel.org

commit fb8d251ee2a6bf4d7f4af5548e9c8f4fb5f90402 upstream

This patch extends is_branch_taken() logic from JMP+K instructions to JMP+X instructions. Conditional branches are often done when src and dst registers contain known scalars. In such case the verifier can follow the branch that is going to be taken when program executes. That speeds up the verification and is essential feature to support bounded loops.

Signed-off-by: Alexei Starovoitov ast@kernel.org Acked-by: Andrii Nakryiko andriin@fb.com Signed-off-by: Daniel Borkmann daniel@iogearbox.net [OP: drop is_jmp32 parameter from is_branch_taken() calls and adjust context] Signed-off-by: Ovidiu Panait ovidiu.panait@windriver.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- kernel/bpf/verifier.c | 33 ++++++++++++++++++--------------- 1 file changed, 18 insertions(+), 15 deletions(-)

diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index b748ec3dd6ba0..54bfd85e13cdd 100644 --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -4311,9 +4311,10 @@ static int check_cond_jmp_op(struct bpf_verifier_env *env, struct bpf_verifier_state *this_branch = env->cur_state; struct bpf_verifier_state *other_branch; struct bpf_reg_state *regs = this_branch->frame[this_branch->curframe]->regs; - struct bpf_reg_state *dst_reg, *other_branch_regs; + struct bpf_reg_state *dst_reg, *other_branch_regs, *src_reg = NULL; u8 opcode = BPF_OP(insn->code); bool is_jmp32; + int pred = -1; int err;

/* Only conditional jumps are expected to reach here. */ @@ -4338,6 +4339,7 @@ static int check_cond_jmp_op(struct bpf_verifier_env *env, insn->src_reg); return -EACCES; } + src_reg = &regs[insn->src_reg]; } else { if (insn->src_reg != BPF_REG_0) { verbose(env, "BPF_JMP/JMP32 uses reserved fields\n"); @@ -4353,20 +4355,21 @@ static int check_cond_jmp_op(struct bpf_verifier_env *env, dst_reg = &regs[insn->dst_reg]; is_jmp32 = BPF_CLASS(insn->code) == BPF_JMP32;

- if (BPF_SRC(insn->code) == BPF_K) { - int pred = is_branch_taken(dst_reg, insn->imm, opcode, - is_jmp32); - - if (pred == 1) { - /* only follow the goto, ignore fall-through */ - *insn_idx += insn->off; - return 0; - } else if (pred == 0) { - /* only follow fall-through branch, since - * that's where the program will go - */ - return 0; - } + if (BPF_SRC(insn->code) == BPF_K) + pred = is_branch_taken(dst_reg, insn->imm, opcode, is_jmp32); + else if (src_reg->type == SCALAR_VALUE && + tnum_is_const(src_reg->var_off)) + pred = is_branch_taken(dst_reg, src_reg->var_off.value, + opcode, is_jmp32); + if (pred == 1) { + /* only follow the goto, ignore fall-through */ + *insn_idx += insn->off; + return 0; + } else if (pred == 0) { + /* only follow fall-through branch, since + * that's where the program will go + */ + return 0; }

other_branch = push_stack(env, *insn_idx + insn->off + 1, *insn_idx,

From: Daniel Borkmann daniel@iogearbox.net

[ no upstream commit ]

Switch the comparison, so that is_branch_taken() will recognize that below branch is never taken:

[...] 17: [...] R1_w=inv0 [...] R8_w=inv(id=0,smin_value=-2147483648,smax_value=-1,umin_value=18446744071562067968,var_off=(0xffffffff80000000; 0x7fffffff)) [...] 17: (67) r8 <<= 32 18: [...] R8_w=inv(id=0,smax_value=-4294967296,umin_value=9223372036854775808,umax_value=18446744069414584320,var_off=(0x8000000000000000; 0x7fffffff00000000)) [...] 18: (c7) r8 s>>= 32 19: [...] R8_w=inv(id=0,smin_value=-2147483648,smax_value=-1,umin_value=18446744071562067968,var_off=(0xffffffff80000000; 0x7fffffff)) [...] 19: (6d) if r1 s> r8 goto pc+16 [...] R1_w=inv0 [...] R8_w=inv(id=0,smin_value=-2147483648,smax_value=-1,umin_value=18446744071562067968,var_off=(0xffffffff80000000; 0x7fffffff)) [...] [...]

Currently we check for is_branch_taken() only if either K is source, or source is a scalar value that is const. For upstream it would be good to extend this properly to check whether dst is const and src not.

For the sake of the test_verifier, it is probably not needed here:

# ./test_verifier 101 #101/p bpf_get_stack return R0 within range OK Summary: 1 PASSED, 0 SKIPPED, 0 FAILED

I haven't seen this issue in test_progs* though, they are passing fine:

# ./test_progs-no_alu32 -t get_stack Switching to flavor 'no_alu32' subdirectory... #20 get_stack_raw_tp:OK Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED

# ./test_progs -t get_stack #20 get_stack_raw_tp:OK Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann daniel@iogearbox.net Acked-by: Alexei Starovoitov ast@kernel.org Acked-by: John Fastabend john.fastabend@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org [OP: backport to 4.19] Signed-off-by: Ovidiu Panait ovidiu.panait@windriver.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- tools/testing/selftests/bpf/test_verifier.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/bpf/test_verifier.c b/tools/testing/selftests/bpf/test_verifier.c index da985a5e7cc56..662d6acaaab0a 100644 --- a/tools/testing/selftests/bpf/test_verifier.c +++ b/tools/testing/selftests/bpf/test_verifier.c @@ -12263,7 +12263,7 @@ static struct bpf_test tests[] = { BPF_MOV64_REG(BPF_REG_8, BPF_REG_0), BPF_ALU64_IMM(BPF_LSH, BPF_REG_8, 32), BPF_ALU64_IMM(BPF_ARSH, BPF_REG_8, 32), - BPF_JMP_REG(BPF_JSGT, BPF_REG_1, BPF_REG_8, 16), + BPF_JMP_REG(BPF_JSLT, BPF_REG_8, BPF_REG_1, 16), BPF_ALU64_REG(BPF_SUB, BPF_REG_9, BPF_REG_8), BPF_MOV64_REG(BPF_REG_2, BPF_REG_7), BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_8),

From: Lukas Wunner lukas@wunner.de

commit 7174dc655ef0578877b0b4598e69619d2be28b4d upstream.

If the call to devm_spi_register_master() fails on probe of the GPIO SPI driver, the spi_master struct is erroneously not freed:

After allocating the spi_master, its reference count is 1. The driver unconditionally decrements the reference count on unbind using a devm action. Before calling devm_spi_register_master(), the driver unconditionally increments the reference count because on success, that function will decrement the reference count on unbind. However on failure, devm_spi_register_master() does *not* decrement the reference count, so the spi_master is leaked.

The issue was introduced by commits 8b797490b4db ("spi: gpio: Make sure spi_master_put() is called in every error path") and 79567c1a321e ("spi: gpio: Use devm_spi_register_master()"), which sought to plug leaks introduced by 9b00bc7b901f ("spi: spi-gpio: Rewrite to use GPIO descriptors") but missed this remaining leak.

The situation was later aggravated by commit d3b0ffa1d75d ("spi: gpio: prevent memory leak in spi_gpio_probe"), which introduced a use-after-free because it releases a reference on the spi_master if devm_add_action_or_reset() fails even though the function already does that.

Fix by switching over to the new devm_spi_alloc_master() helper.

Fixes: 9b00bc7b901f ("spi: spi-gpio: Rewrite to use GPIO descriptors") Signed-off-by: Lukas Wunner lukas@wunner.de Reviewed-by: Linus Walleij linus.walleij@linaro.org Cc: stable@vger.kernel.org # v4.17+: 5e844cc37a5c: spi: Introduce device-managed SPI controller allocation Cc: stable@vger.kernel.org # v5.1-: 8b797490b4db: spi: gpio: Make sure spi_master_put() is called in every error path Cc: stable@vger.kernel.org # v5.1-: 45beec351998: spi: bitbang: Introduce spi_bitbang_init() Cc: stable@vger.kernel.org # v5.1-: 79567c1a321e: spi: gpio: Use devm_spi_register_master() Cc: stable@vger.kernel.org # v5.4-: d3b0ffa1d75d: spi: gpio: prevent memory leak in spi_gpio_probe Cc: stable@vger.kernel.org # v4.17+ Cc: Navid Emamdoost navid.emamdoost@gmail.com Cc: Andrey Smirnov andrew.smirnov@gmail.com Link: https://lore.kernel.org/r/86eaed27431c3d709e3748eb76ceecbfc790dd37.160728688... Signed-off-by: Mark Brown broonie@kernel.org [lukas: backport to v4.19.192] Signed-off-by: Lukas Wunner lukas@wunner.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/spi/spi-gpio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-gpio.c b/drivers/spi/spi-gpio.c index 19687da237740..9defc0618e55b 100644 --- a/drivers/spi/spi-gpio.c +++ b/drivers/spi/spi-gpio.c @@ -387,7 +387,7 @@ static int spi_gpio_probe(struct platform_device *pdev) return -ENODEV; #endif

- master = spi_alloc_master(&pdev->dev, sizeof(*spi_gpio)); + master = devm_spi_alloc_master(&pdev->dev, sizeof(*spi_gpio)); if (!master) return -ENOMEM;

From: Lukas Wunner lukas@wunner.de

commit 46b5c4fb87ce8211e0f9b0383dbde72c3652d2ba upstream.

If the calls to device_reset() or devm_spi_register_controller() fail on probe of the MediaTek MT7621 SPI driver, the spi_controller struct is erroneously not freed. Fix by switching over to the new devm_spi_alloc_master() helper.

Additionally, there's an ordering issue in mt7621_spi_remove() wherein the spi_controller is unregistered after disabling the SYS clock. The correct order is to call spi_unregister_controller() *before* this teardown step because bus accesses may still be ongoing until that function returns.

All of these bugs have existed since the driver was first introduced, so it seems fair to fix them together in a single commit.

Fixes: 1ab7f2a43558 ("staging: mt7621-spi: add mt7621 support") Signed-off-by: Lukas Wunner lukas@wunner.de Reviewed-by: Stefan Roese sr@denx.de Cc: stable@vger.kernel.org # v4.17+: 5e844cc37a5c: spi: Introduce device-managed SPI controller allocation Cc: stable@vger.kernel.org # v4.17+ Link: https://lore.kernel.org/r/72b680796149f5fcda0b3f530ffb7ee73b04f224.160728688... Signed-off-by: Mark Brown broonie@kernel.org [lukas: backport to v4.19.192] Signed-off-by: Lukas Wunner lukas@wunner.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/staging/mt7621-spi/spi-mt7621.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/mt7621-spi/spi-mt7621.c b/drivers/staging/mt7621-spi/spi-mt7621.c index ebfbe5ee479a2..75ed48f60c8c7 100644 --- a/drivers/staging/mt7621-spi/spi-mt7621.c +++ b/drivers/staging/mt7621-spi/spi-mt7621.c @@ -452,7 +452,7 @@ static int mt7621_spi_probe(struct platform_device *pdev) if (status) return status;

- master = spi_alloc_master(&pdev->dev, sizeof(*rs)); + master = devm_spi_alloc_master(&pdev->dev, sizeof(*rs)); if (master == NULL) { dev_info(&pdev->dev, "master allocation failed\n"); clk_disable_unprepare(clk); @@ -502,8 +502,8 @@ static int mt7621_spi_remove(struct platform_device *pdev) master = dev_get_drvdata(&pdev->dev); rs = spi_master_get_devdata(master);

- clk_disable(rs->clk); spi_unregister_master(master); + clk_disable_unprepare(rs->clk);

return 0; }

From: Dan Carpenter dan.carpenter@oracle.com

commit 769b01ea68b6c49dc3cde6adf7e53927dacbd3a8 upstream.

The "sizeof(struct nfs_fh)" is two bytes too large and could lead to memory corruption. It should be NFS_MAXFHSIZE because that's the size of the ->data[] buffer.

I reversed the size of the arguments to put the variable on the left.

Fixes: 16b374ca439f ("NFSv4.1: pnfs: filelayout: add driver's LAYOUTGET and GETDEVICEINFO infrastructure") Signed-off-by: Dan Carpenter dan.carpenter@oracle.com Signed-off-by: Trond Myklebust trond.myklebust@hammerspace.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- fs/nfs/filelayout/filelayout.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/nfs/filelayout/filelayout.c b/fs/nfs/filelayout/filelayout.c index 2478a69da0f0c..e8e825497cbdc 100644 --- a/fs/nfs/filelayout/filelayout.c +++ b/fs/nfs/filelayout/filelayout.c @@ -717,7 +717,7 @@ filelayout_decode_layout(struct pnfs_layout_hdr *flo, if (unlikely(!p)) goto out_err; fl->fh_array[i]->size = be32_to_cpup(p++); - if (sizeof(struct nfs_fh) < fl->fh_array[i]->size) { + if (fl->fh_array[i]->size > NFS_MAXFHSIZE) { printk(KERN_ERR "NFS: Too big fh %d received %d\n", i, fl->fh_array[i]->size); goto out_err;

From: Zhang Xiaoxu zhangxiaoxu5@huawei.com

commit e67afa7ee4a59584d7253e45d7f63b9528819a13 upstream.

Since commit bdcc2cd14e4e ("NFSv4.2: handle NFS-specific llseek errors"), nfs42_proc_llseek would return -EOPNOTSUPP rather than -ENOTSUPP when SEEK_DATA on NFSv4.0/v4.1.

This will lead xfstests generic/285 not run on NFSv4.0/v4.1 when set the CONFIG_NFS_V4_2, rather than run failed.

Fixes: bdcc2cd14e4e ("NFSv4.2: handle NFS-specific llseek errors") Cc: <stable.vger.kernel.org> # 4.2 Signed-off-by: Zhang Xiaoxu zhangxiaoxu5@huawei.com Signed-off-by: Trond Myklebust trond.myklebust@hammerspace.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- fs/nfs/nfs4file.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c index 75d3cf86f1723..e053a883d08d4 100644 --- a/fs/nfs/nfs4file.c +++ b/fs/nfs/nfs4file.c @@ -148,7 +148,7 @@ static loff_t nfs4_file_llseek(struct file *filep, loff_t offset, int whence) case SEEK_HOLE: case SEEK_DATA: ret = nfs42_proc_llseek(filep, offset, whence); - if (ret != -ENOTSUPP) + if (ret != -EOPNOTSUPP) return ret; /* Fall through */ default:

From: Vladyslav Tarasiuk vladyslavt@nvidia.com

commit db825feefc6868896fed5e361787ba3bee2fd906 upstream.

Fix SFP and QSFP* EEPROM queries by setting i2c_address, offset and page number correctly. For SFP set the following params: - I2C address for offsets 0-255 is 0x50. For 256-511 - 0x51. - Page number is zero. - Offset is 0-255.

At the same time, QSFP* parameters are different: - I2C address is always 0x50. - Page number is not limited to zero. - Offset is 0-255 for page zero and 128-255 for others.

To set parameters accordingly to cable used, implement function to query module ID and implement respective helper functions to set parameters correctly.

Fixes: 135dd9594f12 ("net/mlx4_en: ethtool, Remove unsupported SFP EEPROM high pages query") Signed-off-by: Vladyslav Tarasiuk vladyslavt@nvidia.com Signed-off-by: Tariq Toukan tariqt@nvidia.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- .../net/ethernet/mellanox/mlx4/en_ethtool.c | 4 +- drivers/net/ethernet/mellanox/mlx4/port.c | 107 +++++++++++++++++- 2 files changed, 104 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c index 7a99eb1572fd9..6a005014d46af 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c @@ -2011,8 +2011,6 @@ static int mlx4_en_set_tunable(struct net_device *dev, return ret; }

-#define MLX4_EEPROM_PAGE_LEN 256 - static int mlx4_en_get_module_info(struct net_device *dev, struct ethtool_modinfo *modinfo) { @@ -2047,7 +2045,7 @@ static int mlx4_en_get_module_info(struct net_device *dev, break; case MLX4_MODULE_ID_SFP: modinfo->type = ETH_MODULE_SFF_8472; - modinfo->eeprom_len = MLX4_EEPROM_PAGE_LEN; + modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; break; default: return -EINVAL; diff --git a/drivers/net/ethernet/mellanox/mlx4/port.c b/drivers/net/ethernet/mellanox/mlx4/port.c index ba6ac31a339dc..256a06b3c096b 100644 --- a/drivers/net/ethernet/mellanox/mlx4/port.c +++ b/drivers/net/ethernet/mellanox/mlx4/port.c @@ -1973,6 +1973,7 @@ EXPORT_SYMBOL(mlx4_get_roce_gid_from_slave); #define I2C_ADDR_LOW 0x50 #define I2C_ADDR_HIGH 0x51 #define I2C_PAGE_SIZE 256 +#define I2C_HIGH_PAGE_SIZE 128

/* Module Info Data */ struct mlx4_cable_info { @@ -2026,6 +2027,88 @@ static inline const char *cable_info_mad_err_str(u16 mad_status) return "Unknown Error"; }

+static int mlx4_get_module_id(struct mlx4_dev *dev, u8 port, u8 *module_id) +{ + struct mlx4_cmd_mailbox *inbox, *outbox; + struct mlx4_mad_ifc *inmad, *outmad; + struct mlx4_cable_info *cable_info; + int ret; + + inbox = mlx4_alloc_cmd_mailbox(dev); + if (IS_ERR(inbox)) + return PTR_ERR(inbox); + + outbox = mlx4_alloc_cmd_mailbox(dev); + if (IS_ERR(outbox)) { + mlx4_free_cmd_mailbox(dev, inbox); + return PTR_ERR(outbox); + } + + inmad = (struct mlx4_mad_ifc *)(inbox->buf); + outmad = (struct mlx4_mad_ifc *)(outbox->buf); + + inmad->method = 0x1; /* Get */ + inmad->class_version = 0x1; + inmad->mgmt_class = 0x1; + inmad->base_version = 0x1; + inmad->attr_id = cpu_to_be16(0xFF60); /* Module Info */ + + cable_info = (struct mlx4_cable_info *)inmad->data; + cable_info->dev_mem_address = 0; + cable_info->page_num = 0; + cable_info->i2c_addr = I2C_ADDR_LOW; + cable_info->size = cpu_to_be16(1); + + ret = mlx4_cmd_box(dev, inbox->dma, outbox->dma, port, 3, + MLX4_CMD_MAD_IFC, MLX4_CMD_TIME_CLASS_C, + MLX4_CMD_NATIVE); + if (ret) + goto out; + + if (be16_to_cpu(outmad->status)) { + /* Mad returned with bad status */ + ret = be16_to_cpu(outmad->status); + mlx4_warn(dev, + "MLX4_CMD_MAD_IFC Get Module ID attr(%x) port(%d) i2c_addr(%x) offset(%d) size(%d): Response Mad Status(%x) - %s\n", + 0xFF60, port, I2C_ADDR_LOW, 0, 1, ret, + cable_info_mad_err_str(ret)); + ret = -ret; + goto out; + } + cable_info = (struct mlx4_cable_info *)outmad->data; + *module_id = cable_info->data[0]; +out: + mlx4_free_cmd_mailbox(dev, inbox); + mlx4_free_cmd_mailbox(dev, outbox); + return ret; +} + +static void mlx4_sfp_eeprom_params_set(u8 *i2c_addr, u8 *page_num, u16 *offset) +{ + *i2c_addr = I2C_ADDR_LOW; + *page_num = 0; + + if (*offset < I2C_PAGE_SIZE) + return; + + *i2c_addr = I2C_ADDR_HIGH; + *offset -= I2C_PAGE_SIZE; +} + +static void mlx4_qsfp_eeprom_params_set(u8 *i2c_addr, u8 *page_num, u16 *offset) +{ + /* Offsets 0-255 belong to page 0. + * Offsets 256-639 belong to pages 01, 02, 03. + * For example, offset 400 is page 02: 1 + (400 - 256) / 128 = 2 + */ + if (*offset < I2C_PAGE_SIZE) + *page_num = 0; + else + *page_num = 1 + (*offset - I2C_PAGE_SIZE) / I2C_HIGH_PAGE_SIZE; + *i2c_addr = I2C_ADDR_LOW; + *offset -= *page_num * I2C_HIGH_PAGE_SIZE; +} + /** * mlx4_get_module_info - Read cable module eeprom data * @dev: mlx4_dev. @@ -2045,12 +2128,30 @@ int mlx4_get_module_info(struct mlx4_dev *dev, u8 port, struct mlx4_cmd_mailbox *inbox, *outbox; struct mlx4_mad_ifc *inmad, *outmad; struct mlx4_cable_info *cable_info; - u16 i2c_addr; + u8 module_id, i2c_addr, page_num; int ret;

if (size > MODULE_INFO_MAX_READ) size = MODULE_INFO_MAX_READ;

+ ret = mlx4_get_module_id(dev, port, &module_id); + if (ret) + return ret; + + switch (module_id) { + case MLX4_MODULE_ID_SFP: + mlx4_sfp_eeprom_params_set(&i2c_addr, &page_num, &offset); + break; + case MLX4_MODULE_ID_QSFP: + case MLX4_MODULE_ID_QSFP_PLUS: + case MLX4_MODULE_ID_QSFP28: + mlx4_qsfp_eeprom_params_set(&i2c_addr, &page_num, &offset); + break; + default: + mlx4_err(dev, "Module ID not recognized: %#x\n", module_id); + return -EINVAL; + } + inbox = mlx4_alloc_cmd_mailbox(dev); if (IS_ERR(inbox)) return PTR_ERR(inbox); @@ -2076,11 +2177,9 @@ int mlx4_get_module_info(struct mlx4_dev *dev, u8 port, */ size -= offset + size - I2C_PAGE_SIZE;

- i2c_addr = I2C_ADDR_LOW; - cable_info = (struct mlx4_cable_info *)inmad->data; cable_info->dev_mem_address = cpu_to_be16(offset); - cable_info->page_num = 0; + cable_info->page_num = page_num; cable_info->i2c_addr = i2c_addr; cable_info->size = cpu_to_be16(size);

From: Xin Long lucien.xin@gmail.com

commit b7df21cf1b79ab7026f545e7bf837bd5750ac026 upstream.

It's not a good idea to append the frag skb to a skb's frag_list if the frag_list already has skbs from elsewhere, such as this skb was created by pskb_copy() where the frag_list was cloned (all the skbs in it were skb_get'ed) and shared by multiple skbs.

However, the new appended frag skb should have been only seen by the current skb. Otherwise, it will cause use after free crashes as this appended frag skb are seen by multiple skbs but it only got skb_get called once.

The same thing happens with a skb updated by pskb_may_pull() with a skb_cloned skb. Li Shuang has reported quite a few crashes caused by this when doing testing over macvlan devices:

[] kernel BUG at net/core/skbuff.c:1970! [] Call Trace: [] skb_clone+0x4d/0xb0 [] macvlan_broadcast+0xd8/0x160 [macvlan] [] macvlan_process_broadcast+0x148/0x150 [macvlan] [] process_one_work+0x1a7/0x360 [] worker_thread+0x30/0x390

[] kernel BUG at mm/usercopy.c:102! [] Call Trace: [] __check_heap_object+0xd3/0x100 [] __check_object_size+0xff/0x16b [] simple_copy_to_iter+0x1c/0x30 [] __skb_datagram_iter+0x7d/0x310 [] __skb_datagram_iter+0x2a5/0x310 [] skb_copy_datagram_iter+0x3b/0x90 [] tipc_recvmsg+0x14a/0x3a0 [tipc] [] ____sys_recvmsg+0x91/0x150 [] ___sys_recvmsg+0x7b/0xc0

[] kernel BUG at mm/slub.c:305! [] Call Trace: [] <IRQ> [] kmem_cache_free+0x3ff/0x400 [] __netif_receive_skb_core+0x12c/0xc40 [] ? kmem_cache_alloc+0x12e/0x270 [] netif_receive_skb_internal+0x3d/0xb0 [] ? get_rx_page_info+0x8e/0xa0 [be2net] [] be_poll+0x6ef/0xd00 [be2net] [] ? irq_exit+0x4f/0x100 [] net_rx_action+0x149/0x3b0

...

This patch is to fix it by linearizing the head skb if it has frag_list set in tipc_buf_append(). Note that we choose to do this before calling skb_unshare(), as __skb_linearize() will avoid skb_copy(). Also, we can not just drop the frag_list either as the early time.

Fixes: 45c8b7b175ce ("tipc: allow non-linear first fragment buffer") Reported-by: Li Shuang shuali@redhat.com Signed-off-by: Xin Long lucien.xin@gmail.com Acked-by: Jon Maloy jmaloy@redhat.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- net/tipc/msg.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/net/tipc/msg.c b/net/tipc/msg.c index f04843ca82162..0ac2704449744 100644 --- a/net/tipc/msg.c +++ b/net/tipc/msg.c @@ -141,18 +141,13 @@ int tipc_buf_append(struct sk_buff **headbuf, struct sk_buff **buf) if (unlikely(head)) goto err; *buf = NULL; + if (skb_has_frag_list(frag) && __skb_linearize(frag)) + goto err; frag = skb_unshare(frag, GFP_ATOMIC); if (unlikely(!frag)) goto err; head = *headbuf = frag; TIPC_SKB_CB(head)->tail = NULL; - if (skb_is_nonlinear(head)) { - skb_walk_frags(head, tail) { - TIPC_SKB_CB(head)->tail = tail; - } - } else { - skb_frag_list_init(head); - } return 0; }

From: Dan Carpenter dan.carpenter@oracle.com

commit a269333fa5c0c8e53c92b5a28a6076a28cde3e83 upstream.

If ds->ops->get_sset_count() fails then it "count" is a negative error code such as -EOPNOTSUPP. Because "i" is an unsigned int, the negative error code is type promoted to a very high value and the loop will corrupt memory until the system crashes.

Fix this by checking for error codes and changing the type of "i" to just int.

Fixes: badf3ada60ab ("net: dsa: Provide CPU port statistics to master netdev") Signed-off-by: Dan Carpenter dan.carpenter@oracle.com Reviewed-by: Andrew Lunn andrew@lunn.ch Reviewed-by: Florian Fainelli f.fainelli@gmail.com Reviewed-by: Vladimir Oltean olteanv@gmail.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- net/dsa/master.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/net/dsa/master.c b/net/dsa/master.c index aae478d611018..22e9ce6e51a48 100644 --- a/net/dsa/master.c +++ b/net/dsa/master.c @@ -87,8 +87,7 @@ static void dsa_master_get_strings(struct net_device *dev, uint32_t stringset, struct dsa_switch *ds = cpu_dp->ds; int port = cpu_dp->index; int len = ETH_GSTRING_LEN; - int mcount = 0, count; - unsigned int i; + int mcount = 0, count, i; uint8_t pfx[4]; uint8_t *ndata;

@@ -118,6 +117,8 @@ static void dsa_master_get_strings(struct net_device *dev, uint32_t stringset, */ ds->ops->get_strings(ds, port, stringset, ndata); count = ds->ops->get_sset_count(ds, port, stringset); + if (count < 0) + return; for (i = 0; i < count; i++) { memmove(ndata + (i * len + sizeof(pfx)), ndata + i * len, len - sizeof(pfx));

From: Jean Delvare jdelvare@suse.de

commit e4d8716c3dcec47f1557024add24e1f3c09eb24b upstream.

Now that the i2c-i801 driver supports interrupts, setting the KILL bit in a attempt to recover from a timed out transaction triggers an interrupt. Unfortunately, the interrupt handler (i801_isr) is not prepared for this situation and will try to process the interrupt as if it was signaling the end of a successful transaction. In the case of a block transaction, this can result in an out-of-range memory access.

This condition was reproduced several times by syzbot: https://syzkaller.appspot.com/bug?extid=ed71512d469895b5b34e https://syzkaller.appspot.com/bug?extid=8c8dedc0ba9e03f6c79e https://syzkaller.appspot.com/bug?extid=c8ff0b6d6c73d81b610e https://syzkaller.appspot.com/bug?extid=33f6c360821c399d69eb https://syzkaller.appspot.com/bug?extid=be15dc0b1933f04b043a https://syzkaller.appspot.com/bug?extid=b4d3fd1dfd53e90afd79

So disable interrupts while trying to reset the bus. Interrupts will be enabled again for the following transaction.

Fixes: 636752bcb517 ("i2c-i801: Enable IRQ for SMBus transactions") Reported-by: syzbot+b4d3fd1dfd53e90afd79@syzkaller.appspotmail.com Signed-off-by: Jean Delvare jdelvare@suse.de Acked-by: Andy Shevchenko andriy.shevchenko@linux.intel.com Cc: Jarkko Nikula jarkko.nikula@linux.intel.com Tested-by: Jarkko Nikula jarkko.nikula@linux.intel.com Signed-off-by: Wolfram Sang wsa@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/i2c/busses/i2c-i801.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c index 3ac3b26cc9317..efafd028c5d16 100644 --- a/drivers/i2c/busses/i2c-i801.c +++ b/drivers/i2c/busses/i2c-i801.c @@ -384,11 +384,9 @@ static int i801_check_post(struct i801_priv *priv, int status) dev_err(&priv->pci_dev->dev, "Transaction timeout\n"); /* try to stop the current command */ dev_dbg(&priv->pci_dev->dev, "Terminating the current operation\n"); - outb_p(inb_p(SMBHSTCNT(priv)) | SMBHSTCNT_KILL, - SMBHSTCNT(priv)); + outb_p(SMBHSTCNT_KILL, SMBHSTCNT(priv)); usleep_range(1000, 2000); - outb_p(inb_p(SMBHSTCNT(priv)) & (~SMBHSTCNT_KILL), - SMBHSTCNT(priv)); + outb_p(0, SMBHSTCNT(priv));

/* Check if it worked */ status = inb_p(SMBHSTSTS(priv));

From: Kai-Heng Feng kai.heng.feng@canonical.com

[ Upstream commit 79d341e26ebcdbc622348aaaab6f8f89b6fdb25f ]

hp_accel can take almost two seconds to resume on some HP laptops.

The bottleneck is on evaluating _INI, which is only needed to run once.

Resolve the issue by only invoking _INI when it's necessary. Namely, on probe and on hibernation restore.

Signed-off-by: Kai-Heng Feng kai.heng.feng@canonical.com Acked-by: Éric Piel eric.piel@trempplin-utc.net Link: https://lore.kernel.org/r/20210430060736.590321-1-kai.heng.feng@canonical.co... Signed-off-by: Hans de Goede hdegoede@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/misc/lis3lv02d/lis3lv02d.h | 1 + drivers/platform/x86/hp_accel.c | 22 +++++++++++++++++++++- 2 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/drivers/misc/lis3lv02d/lis3lv02d.h b/drivers/misc/lis3lv02d/lis3lv02d.h index c439c827eea80..0ef759671b546 100644 --- a/drivers/misc/lis3lv02d/lis3lv02d.h +++ b/drivers/misc/lis3lv02d/lis3lv02d.h @@ -284,6 +284,7 @@ struct lis3lv02d { int regs_size; u8 *reg_cache; bool regs_stored; + bool init_required; u8 odr_mask; /* ODR bit mask */ u8 whoami; /* indicates measurement precision */ s16 (*read_data) (struct lis3lv02d *lis3, int reg); diff --git a/drivers/platform/x86/hp_accel.c b/drivers/platform/x86/hp_accel.c index 7b12abe86b94f..9c3c83ef445bf 100644 --- a/drivers/platform/x86/hp_accel.c +++ b/drivers/platform/x86/hp_accel.c @@ -101,6 +101,9 @@ MODULE_DEVICE_TABLE(acpi, lis3lv02d_device_ids); static int lis3lv02d_acpi_init(struct lis3lv02d *lis3) { struct acpi_device *dev = lis3->bus_priv; + if (!lis3->init_required) + return 0; + if (acpi_evaluate_object(dev->handle, METHOD_NAME__INI, NULL, NULL) != AE_OK) return -EINVAL; @@ -367,6 +370,7 @@ static int lis3lv02d_add(struct acpi_device *device) }

/* call the core layer do its init */ + lis3_dev.init_required = true; ret = lis3lv02d_init_device(&lis3_dev); if (ret) return ret; @@ -414,11 +418,27 @@ static int lis3lv02d_suspend(struct device *dev)

static int lis3lv02d_resume(struct device *dev) { + lis3_dev.init_required = false; + lis3lv02d_poweron(&lis3_dev); + return 0; +} + +static int lis3lv02d_restore(struct device *dev) +{ + lis3_dev.init_required = true; lis3lv02d_poweron(&lis3_dev); return 0; }

-static SIMPLE_DEV_PM_OPS(hp_accel_pm, lis3lv02d_suspend, lis3lv02d_resume); +static const struct dev_pm_ops hp_accel_pm = { + .suspend = lis3lv02d_suspend, + .resume = lis3lv02d_resume, + .freeze = lis3lv02d_suspend, + .thaw = lis3lv02d_resume, + .poweroff = lis3lv02d_suspend, + .restore = lis3lv02d_restore, +}; + #define HP_ACCEL_PM (&hp_accel_pm) #else #define HP_ACCEL_PM NULL

From: Anirudh Rayabharam mail@anirudhrb.com

[ Upstream commit 52202be1cd996cde6e8969a128dc27ee45a7cb5e ]

In fmvj18x_get_hwinfo(), if ioremap fails there will be NULL pointer deref. To fix this, check the return value of ioremap and return -1 to the caller in case of failure.

Cc: "David S. Miller" davem@davemloft.net Acked-by: Dominik Brodowski linux@dominikbrodowski.net Signed-off-by: Anirudh Rayabharam mail@anirudhrb.com Link: https://lore.kernel.org/r/20210503115736.2104747-16-gregkh@linuxfoundation.o... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/net/ethernet/fujitsu/fmvj18x_cs.c | 5 +++++ 1 file changed, 5 insertions(+)

diff --git a/drivers/net/ethernet/fujitsu/fmvj18x_cs.c b/drivers/net/ethernet/fujitsu/fmvj18x_cs.c index a69cd19a55ae2..b8fc9bbeca2c7 100644 --- a/drivers/net/ethernet/fujitsu/fmvj18x_cs.c +++ b/drivers/net/ethernet/fujitsu/fmvj18x_cs.c @@ -547,6 +547,11 @@ static int fmvj18x_get_hwinfo(struct pcmcia_device *link, u_char *node_id) return -1;

base = ioremap(link->resource[2]->start, resource_size(link->resource[2])); + if (!base) { + pcmcia_release_window(link, link->resource[2]); + return -1; + } + pcmcia_map_mem_page(link, link->resource[2], 0);

/*

From: Tom Seewald tseewald@gmail.com

[ Upstream commit b11701c933112d49b808dee01cb7ff854ba6a77a ]

The function hpet_resources() calls ioremap() two times, but in both cases it does not check if ioremap() returned a null pointer. Fix this by adding null pointer checks and returning an appropriate error.

Signed-off-by: Tom Seewald tseewald@gmail.com Link: https://lore.kernel.org/r/20210503115736.2104747-30-gregkh@linuxfoundation.o... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/char/hpet.c | 4 ++++ 1 file changed, 4 insertions(+)

diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c index c0732f0322484..68f02318cee32 100644 --- a/drivers/char/hpet.c +++ b/drivers/char/hpet.c @@ -975,6 +975,8 @@ static acpi_status hpet_resources(struct acpi_resource *res, void *data) if (ACPI_SUCCESS(status)) { hdp->hd_phys_address = addr.address.minimum; hdp->hd_address = ioremap(addr.address.minimum, addr.address.address_length); + if (!hdp->hd_address) + return AE_ERROR;

if (hpet_is_known(hdp)) { iounmap(hdp->hd_address); @@ -988,6 +990,8 @@ static acpi_status hpet_resources(struct acpi_resource *res, void *data) hdp->hd_phys_address = fixmem32->address; hdp->hd_address = ioremap(fixmem32->address, HPET_RANGE_SIZE); + if (!hdp->hd_address) + return AE_ERROR;

if (hpet_is_known(hdp)) { iounmap(hdp->hd_address);

From: Phillip Potter phil@philpotter.co.uk

[ Upstream commit 4df2a8b0ad634d98a67e540a4e18a60f943e7d9f ]

Place a comment in hidma_mgmt_init explaining why success must currently be assumed, due to the cleanup issue that would need to be considered were this module ever to be unloadable or were this platform_driver_register call ever to fail.

Acked-By: Vinod Koul vkoul@kernel.org Acked-By: Sinan Kaya okaya@kernel.org Signed-off-by: Phillip Potter phil@philpotter.co.uk Link: https://lore.kernel.org/r/20210503115736.2104747-52-gregkh@linuxfoundation.o... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/dma/qcom/hidma_mgmt.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+)

diff --git a/drivers/dma/qcom/hidma_mgmt.c b/drivers/dma/qcom/hidma_mgmt.c index d64edeb6771a9..f9640e37b1397 100644 --- a/drivers/dma/qcom/hidma_mgmt.c +++ b/drivers/dma/qcom/hidma_mgmt.c @@ -423,6 +423,20 @@ static int __init hidma_mgmt_init(void) hidma_mgmt_of_populate_channels(child); } #endif + /* + * We do not check for return value here, as it is assumed that + * platform_driver_register must not fail. The reason for this is that + * the (potential) hidma_mgmt_of_populate_channels calls above are not + * cleaned up if it does fail, and to do this work is quite + * complicated. In particular, various calls of of_address_to_resource, + * of_irq_to_resource, platform_device_register_full, of_dma_configure, + * and of_msi_configure which then call other functions and so on, must + * be cleaned up - this is not a trivial exercise. + * + * Currently, this module is not intended to be unloaded, and there is + * no module_exit function defined which does the needed cleanup. For + * this reason, we have to assume success here. + */ platform_driver_register(&hidma_mgmt_driver);

return 0;

From: Greg Kroah-Hartman gregkh@linuxfoundation.org

[ Upstream commit 2da441a6491d93eff8ffff523837fd621dc80389 ]

cs43130_probe() does not do any valid error checking of things it initializes, OR what it does, it does not unwind properly if there are errors.

Fix this up by moving the sysfs files to an attribute group so the driver core will correctly add/remove them all at once and handle errors with them, and correctly check for creating a new workqueue and unwinding if that fails.

Cc: Mark Brown broonie@kernel.org Link: https://lore.kernel.org/r/20210503115736.2104747-58-gregkh@linuxfoundation.o... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- sound/soc/codecs/cs43130.c | 28 ++++++++++++++-------------- 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/sound/soc/codecs/cs43130.c b/sound/soc/codecs/cs43130.c index 80dc421971548..cf29dec28b5e3 100644 --- a/sound/soc/codecs/cs43130.c +++ b/sound/soc/codecs/cs43130.c @@ -1738,6 +1738,14 @@ static DEVICE_ATTR(hpload_dc_r, 0444, cs43130_show_dc_r, NULL); static DEVICE_ATTR(hpload_ac_l, 0444, cs43130_show_ac_l, NULL); static DEVICE_ATTR(hpload_ac_r, 0444, cs43130_show_ac_r, NULL);

+static struct attribute *hpload_attrs[] = { + &dev_attr_hpload_dc_l.attr, + &dev_attr_hpload_dc_r.attr, + &dev_attr_hpload_ac_l.attr, + &dev_attr_hpload_ac_r.attr, +}; +ATTRIBUTE_GROUPS(hpload); + static struct reg_sequence hp_en_cal_seq[] = { {CS43130_INT_MASK_4, CS43130_INT_MASK_ALL}, {CS43130_HP_MEAS_LOAD_1, 0}, @@ -2305,23 +2313,15 @@ static int cs43130_probe(struct snd_soc_component *component)

cs43130->hpload_done = false; if (cs43130->dc_meas) { - ret = device_create_file(component->dev, &dev_attr_hpload_dc_l); - if (ret < 0) - return ret; - - ret = device_create_file(component->dev, &dev_attr_hpload_dc_r); - if (ret < 0) - return ret; - - ret = device_create_file(component->dev, &dev_attr_hpload_ac_l); - if (ret < 0) - return ret; - - ret = device_create_file(component->dev, &dev_attr_hpload_ac_r); - if (ret < 0) + ret = sysfs_create_groups(&component->dev->kobj, hpload_groups); + if (ret) return ret;

cs43130->wq = create_singlethread_workqueue("cs43130_hp"); + if (!cs43130->wq) { + sysfs_remove_groups(&component->dev->kobj, hpload_groups); + return -ENOMEM; + } INIT_WORK(&cs43130->work, cs43130_imp_meas); }

From: Greg Kroah-Hartman gregkh@linuxfoundation.org

[ Upstream commit dacb408ca6f0e34df22b40d8dd5fae7f8e777d84 ]

If m5602_write_sensor() or m5602_write_bridge() fail, do not continue to initialize the device but return the error to the calling funtion.

Cc: Mauro Carvalho Chehab mchehab+samsung@kernel.org Link: https://lore.kernel.org/r/20210503115736.2104747-64-gregkh@linuxfoundation.o... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/media/usb/gspca/m5602/m5602_po1030.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/media/usb/gspca/m5602/m5602_po1030.c b/drivers/media/usb/gspca/m5602/m5602_po1030.c index 37d2891e5f5b6..81d8eb72ac41c 100644 --- a/drivers/media/usb/gspca/m5602/m5602_po1030.c +++ b/drivers/media/usb/gspca/m5602/m5602_po1030.c @@ -159,6 +159,7 @@ static const struct v4l2_ctrl_config po1030_greenbal_cfg = { int po1030_probe(struct sd *sd) { u8 dev_id_h = 0, i; + int err; struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;

if (force_sensor) { @@ -177,10 +178,13 @@ int po1030_probe(struct sd *sd) for (i = 0; i < ARRAY_SIZE(preinit_po1030); i++) { u8 data = preinit_po1030[i][2]; if (preinit_po1030[i][0] == SENSOR) - m5602_write_sensor(sd, - preinit_po1030[i][1], &data, 1); + err = m5602_write_sensor(sd, preinit_po1030[i][1], + &data, 1); else - m5602_write_bridge(sd, preinit_po1030[i][1], data); + err = m5602_write_bridge(sd, preinit_po1030[i][1], + data); + if (err < 0) + return err; }

if (m5602_read_sensor(sd, PO1030_DEVID_H, &dev_id_h, 1))

From: Peter Zijlstra peterz@infradead.org

[ Upstream commit 8b549c18ae81dbc36fb11e4aa08b8378c599ca95 ]

This came up in the discussion of the requirements of qspinlock on an architecture. OpenRISC uses qspinlock, but it was noticed that the memmory barrier was not defined.

Peter defined it in the mail thread writing:

As near as I can tell this should do. The arch spec only lists this one instruction and the text makes it sound like a completion barrier.

This is correct so applying this patch.

Signed-off-by: Peter Zijlstra peterz@infradead.org [shorne@gmail.com:Turned the mail into a patch] Signed-off-by: Stafford Horne shorne@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- arch/openrisc/include/asm/barrier.h | 9 +++++++++ 1 file changed, 9 insertions(+) create mode 100644 arch/openrisc/include/asm/barrier.h

diff --git a/arch/openrisc/include/asm/barrier.h b/arch/openrisc/include/asm/barrier.h new file mode 100644 index 0000000000000..7538294721bed --- /dev/null +++ b/arch/openrisc/include/asm/barrier.h @@ -0,0 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __ASM_BARRIER_H +#define __ASM_BARRIER_H + +#define mb() asm volatile ("l.msync" ::: "memory") + +#include <asm-generic/barrier.h> + +#endif /* __ASM_BARRIER_H */

From: Shyam Sundar S K Shyam-sundar.S-k@amd.com

[ Upstream commit f048630bdd55eb5379ef35f971639fe52fabe499 ]

Newer AMD based laptops uses AMDI0051 as the hardware id to support the airplane mode button. Adding this to the supported list.

Signed-off-by: Shyam Sundar S K Shyam-sundar.S-k@amd.com Link: https://lore.kernel.org/r/20210514180047.1697543-1-Shyam-sundar.S-k@amd.com Signed-off-by: Hans de Goede hdegoede@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/platform/x86/hp-wireless.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/drivers/platform/x86/hp-wireless.c b/drivers/platform/x86/hp-wireless.c index d6ea5e998fb88..bb95bec0b110d 100644 --- a/drivers/platform/x86/hp-wireless.c +++ b/drivers/platform/x86/hp-wireless.c @@ -30,12 +30,14 @@ MODULE_LICENSE("GPL"); MODULE_AUTHOR("Alex Hung"); MODULE_ALIAS("acpi*:HPQ6001:*"); MODULE_ALIAS("acpi*:WSTADEF:*"); +MODULE_ALIAS("acpi*:AMDI0051:*");

static struct input_dev *hpwl_input_dev;

static const struct acpi_device_id hpwl_ids[] = { {"HPQ6001", 0}, {"WSTADEF", 0}, + {"AMDI0051", 0}, {"", 0}, };

From: Steve French stfrench@microsoft.com

[ Upstream commit c0d46717b95735b0eacfddbcca9df37a49de9c7a ]

See MS-SMB2 3.2.4.1.4, file ids in compounded requests should be set to 0xFFFFFFFFFFFFFFFF (we were treating it as u32 not u64 and setting it incorrectly).

Signed-off-by: Steve French stfrench@microsoft.com Reported-by: Stefan Metzmacher metze@samba.org Reviewed-by: Shyam Prasad N sprasad@microsoft.com Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- fs/cifs/smb2pdu.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c index 3304feb668a04..5a924170dd406 100644 --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -3140,10 +3140,10 @@ smb2_new_read_req(void **buf, unsigned int *total_len, * Related requests use info from previous read request * in chain. */ - shdr->SessionId = 0xFFFFFFFF; + shdr->SessionId = 0xFFFFFFFFFFFFFFFF; shdr->TreeId = 0xFFFFFFFF; - req->PersistentFileId = 0xFFFFFFFF; - req->VolatileFileId = 0xFFFFFFFF; + req->PersistentFileId = 0xFFFFFFFFFFFFFFFF; + req->VolatileFileId = 0xFFFFFFFFFFFFFFFF; } } if (remaining_bytes > io_parms->length)

From: Jingwen Chen Jingwen.Chen2@amd.com

[ Upstream commit fa7e6abc75f3d491bc561734312d065dc9dc2a77 ]

[Why] the gem object rfb->base.obj[0] is get according to num_planes in amdgpufb_create, but is not put according to num_planes

[How] put rfb->base.obj[0] in amdgpu_fbdev_destroy according to num_planes

Signed-off-by: Jingwen Chen Jingwen.Chen2@amd.com Acked-by: Christian König christian.koenig@amd.com Reviewed-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c | 3 +++ 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c index 69c5d22f29bdf..d55ff59584c82 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c @@ -297,10 +297,13 @@ static int amdgpufb_create(struct drm_fb_helper *helper, static int amdgpu_fbdev_destroy(struct drm_device *dev, struct amdgpu_fbdev *rfbdev) { struct amdgpu_framebuffer *rfb = &rfbdev->rfb; + int i;

drm_fb_helper_unregister_fbi(&rfbdev->helper);

if (rfb->base.obj[0]) { + for (i = 0; i < rfb->base.format->num_planes; i++) + drm_gem_object_put(rfb->base.obj[0]); amdgpufb_destroy_pinned_object(rfb->base.obj[0]); rfb->base.obj[0] = NULL; drm_framebuffer_unregister_private(&rfb->base);

From: Christophe JAILLET christophe.jaillet@wanadoo.fr

[ Upstream commit ddb6e00f8413e885ff826e32521cff7924661de0 ]

'ret' is known to be 0 here. The expected error code is stored in 'tx_pipe->dma_queue', so use it instead.

While at it, switch from %d to %pe which is more user friendly.

Fixes: 84640e27f230 ("net: netcp: Add Keystone NetCP core ethernet driver") Signed-off-by: Christophe JAILLET christophe.jaillet@wanadoo.fr Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/net/ethernet/ti/netcp_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/ti/netcp_core.c b/drivers/net/ethernet/ti/netcp_core.c index a1d335a3c5e43..6099865217f29 100644 --- a/drivers/net/ethernet/ti/netcp_core.c +++ b/drivers/net/ethernet/ti/netcp_core.c @@ -1364,9 +1364,9 @@ int netcp_txpipe_open(struct netcp_tx_pipe *tx_pipe) tx_pipe->dma_queue = knav_queue_open(name, tx_pipe->dma_queue_id, KNAV_QUEUE_SHARED); if (IS_ERR(tx_pipe->dma_queue)) { + ret = PTR_ERR(tx_pipe->dma_queue); dev_err(dev, "Could not open DMA queue for channel "%s": %d\n", name, ret); - ret = PTR_ERR(tx_pipe->dma_queue); goto err; }

From: Fugang Duan fugang.duan@nxp.com

[ Upstream commit 619fee9eb13b5d29e4267cb394645608088c28a8 ]

If the memory allocated for cbd_base is failed, it should free the memory allocated for the queues, otherwise it causes memory leak.

And if the memory allocated for the queues is failed, it can return error directly.

Fixes: 59d0f7465644 ("net: fec: init multi queue date structure") Signed-off-by: Fugang Duan fugang.duan@nxp.com Signed-off-by: Joakim Zhang qiangqing.zhang@nxp.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/net/ethernet/freescale/fec_main.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c index 7d1a669416f20..6b9eada1feb21 100644 --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@ -3221,7 +3221,9 @@ static int fec_enet_init(struct net_device *ndev) return ret; }

- fec_enet_alloc_queue(ndev); + ret = fec_enet_alloc_queue(ndev); + if (ret) + return ret;

bd_size = (fep->total_tx_ring_size + fep->total_rx_ring_size) * dsize;

@@ -3229,7 +3231,8 @@ static int fec_enet_init(struct net_device *ndev) cbd_base = dmam_alloc_coherent(&fep->pdev->dev, bd_size, &bd_dma, GFP_KERNEL); if (!cbd_base) { - return -ENOMEM; + ret = -ENOMEM; + goto free_queue_mem; }

memset(cbd_base, 0, bd_size); @@ -3309,6 +3312,10 @@ static int fec_enet_init(struct net_device *ndev) fec_enet_update_ethtool_stats(ndev);

return 0; + +free_queue_mem: + fec_enet_free_queue(ndev); + return ret; }

#ifdef CONFIG_OF

From: Christophe JAILLET christophe.jaillet@wanadoo.fr

[ Upstream commit e1d027dd97e1e750669cdc0d3b016a4f54e473eb ]

'bus->mii_bus' has been allocated with 'devm_mdiobus_alloc_size()' in the probe function. So it must not be freed explicitly or there will be a double free.

Remove the incorrect 'mdiobus_free' in the error handling path of the probe function and in remove function.

Suggested-By: Andrew Lunn andrew@lunn.ch Fixes: 35d2aeac9810 ("phy: mdio-octeon: Use devm_mdiobus_alloc_size()") Signed-off-by: Christophe JAILLET christophe.jaillet@wanadoo.fr Reviewed-by: Russell King rmk+kernel@armlinux.org.uk Reviewed-by: Andrew Lunn andrew@lunn.ch Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/net/phy/mdio-octeon.c | 2 -- 1 file changed, 2 deletions(-)

diff --git a/drivers/net/phy/mdio-octeon.c b/drivers/net/phy/mdio-octeon.c index ab6914f8bd50f..1da104150f445 100644 --- a/drivers/net/phy/mdio-octeon.c +++ b/drivers/net/phy/mdio-octeon.c @@ -75,7 +75,6 @@ static int octeon_mdiobus_probe(struct platform_device *pdev)

return 0; fail_register: - mdiobus_free(bus->mii_bus); smi_en.u64 = 0; oct_mdio_writeq(smi_en.u64, bus->register_base + SMI_EN); return err; @@ -89,7 +88,6 @@ static int octeon_mdiobus_remove(struct platform_device *pdev) bus = platform_get_drvdata(pdev);

mdiobus_unregister(bus->mii_bus); - mdiobus_free(bus->mii_bus); smi_en.u64 = 0; oct_mdio_writeq(smi_en.u64, bus->register_base + SMI_EN); return 0;

From: Zhen Lei thunder.leizhen@huawei.com

[ Upstream commit 28c66b6da4087b8cfe81c2ec0a46eb6116dafda9 ]

Fix to return -EPERM from the error handling case instead of 0, as done elsewhere in this function.

Fixes: b6016b767397 ("[BNX2]: New Broadcom gigabit network driver.") Reported-by: Hulk Robot hulkci@huawei.com Signed-off-by: Zhen Lei thunder.leizhen@huawei.com Reviewed-by: Michael Chan michael.chan@broadcom.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/net/ethernet/broadcom/bnx2.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2.c b/drivers/net/ethernet/broadcom/bnx2.c index 122fdb80a7899..9993f1162ac68 100644 --- a/drivers/net/ethernet/broadcom/bnx2.c +++ b/drivers/net/ethernet/broadcom/bnx2.c @@ -8253,9 +8253,9 @@ bnx2_init_board(struct pci_dev *pdev, struct net_device *dev) BNX2_WR(bp, PCI_COMMAND, reg); } else if ((BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A1) && !(bp->flags & BNX2_FLAG_PCIX)) { - dev_err(&pdev->dev, "5706 A1 can only be used in a PCIX bus, aborting\n"); + rc = -EPERM; goto err_out_unmap; }

From: Dan Carpenter dan.carpenter@oracle.com

[ Upstream commit e0112a7c9e847ada15a631b88e279d547e8f26a7 ]

The _nbu2ss_ep_done() function calls:

list_del_init(&req->queue);

which means that the loop will never exit.

Fixes: ca3d253eb967 ("Staging: emxx_udc: Iterate list using list_for_each_entry") Signed-off-by: Dan Carpenter dan.carpenter@oracle.com Link: https://lore.kernel.org/r/YKUd0sDyjm/lkJfJ@mwanda Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/staging/emxx_udc/emxx_udc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/emxx_udc/emxx_udc.c b/drivers/staging/emxx_udc/emxx_udc.c index 3e51476a70451..d2cb2bd6d9133 100644 --- a/drivers/staging/emxx_udc/emxx_udc.c +++ b/drivers/staging/emxx_udc/emxx_udc.c @@ -2148,7 +2148,7 @@ static int _nbu2ss_nuke(struct nbu2ss_udc *udc, struct nbu2ss_ep *ep, int status) { - struct nbu2ss_req *req; + struct nbu2ss_req *req, *n;

/* Endpoint Disable */ _nbu2ss_epn_exit(udc, ep); @@ -2160,7 +2160,7 @@ static int _nbu2ss_nuke(struct nbu2ss_udc *udc, return 0;

/* called with irqs blocked */ - list_for_each_entry(req, &ep->queue, queue) { + list_for_each_entry_safe(req, n, &ep->queue, queue) { _nbu2ss_ep_done(ep, req, status); }

From: Jussi Maki joamaki@gmail.com

[ Upstream commit 84316ca4e100d8cbfccd9f774e23817cb2059868 ]

The skb_change_head() helper did not set "skb->mac_len", which is problematic when it's used in combination with skb_redirect_peer(). Without it, redirecting a packet from a L3 device such as wireguard to the veth peer device will cause skb->data to point to the middle of the IP header on entry to tcp_v4_rcv() since the L2 header is not pulled correctly due to mac_len=0.

Fixes: 3a0af8fd61f9 ("bpf: BPF for lightweight tunnel infrastructure") Signed-off-by: Jussi Maki joamaki@gmail.com Signed-off-by: Daniel Borkmann daniel@iogearbox.net Link: https://lore.kernel.org/bpf/20210519154743.2554771-2-joamaki@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- net/core/filter.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/net/core/filter.c b/net/core/filter.c index 0aeb130aa0708..da939d1766b41 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -3020,6 +3020,7 @@ static inline int __bpf_skb_change_head(struct sk_buff *skb, u32 head_room, __skb_push(skb, head_room); memset(skb->data, 0, head_room); skb_reset_mac_header(skb); + skb_reset_mac_len(skb); }

return ret;

From: Dan Carpenter dan.carpenter@oracle.com

[ Upstream commit 8c7e7b8486cda21269d393245883c5e4737d5ee7 ]

If sas_notify_lldd_dev_found() fails then this code calls:

sas_unregister_dev(port, dev);

which removes "dev", our list iterator, from the list. This could lead to an endless loop. We need to use list_for_each_entry_safe().

Link: https://lore.kernel.org/r/YKUeq6gwfGcvvhty@mwanda Fixes: 303694eeee5e ("[SCSI] libsas: suspend / resume support") Reviewed-by: John Garry john.garry@huawei.com Signed-off-by: Dan Carpenter dan.carpenter@oracle.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/scsi/libsas/sas_port.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/libsas/sas_port.c b/drivers/scsi/libsas/sas_port.c index ddf004bf667e6..32991f7ec2a10 100644 --- a/drivers/scsi/libsas/sas_port.c +++ b/drivers/scsi/libsas/sas_port.c @@ -41,7 +41,7 @@ static bool phy_is_wideport_member(struct asd_sas_port *port, struct asd_sas_phy

static void sas_resume_port(struct asd_sas_phy *phy) { - struct domain_device *dev; + struct domain_device *dev, *n; struct asd_sas_port *port = phy->port; struct sas_ha_struct *sas_ha = phy->ha; struct sas_internal *si = to_sas_internal(sas_ha->core.shost->transportt); @@ -60,7 +60,7 @@ static void sas_resume_port(struct asd_sas_phy *phy) * 1/ presume every device came back * 2/ force the next revalidation to check all expander phys */ - list_for_each_entry(dev, &port->dev_list, dev_list_node) { + list_for_each_entry_safe(dev, n, &port->dev_list, dev_list_node) { int i, rc;

rc = sas_notify_lldd_dev_found(dev);

From: Taehee Yoo ap420073@gmail.com

[ Upstream commit 9b76eade16423ef06829cccfe3e100cfce31afcd ]

If Qdisc_ops->init() is failed, Qdisc_ops->reset() would be called. When dsmark_init(Qdisc_ops->init()) is failed, it possibly doesn't initialize dsmark_qdisc_data->q. But dsmark_reset(Qdisc_ops->reset()) uses dsmark_qdisc_data->q pointer wihtout any null checking. So, panic would occur.

Test commands: sysctl net.core.default_qdisc=dsmark -w ip link add dummy0 type dummy ip link add vw0 link dummy0 type virt_wifi ip link set vw0 up

Splat looks like: KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f] CPU: 3 PID: 684 Comm: ip Not tainted 5.12.0+ #910 RIP: 0010:qdisc_reset+0x2b/0x680 Code: 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 41 57 41 56 41 55 41 54 55 48 89 fd 48 83 c7 18 53 48 89 fa 48 c1 ea 03 48 83 ec 20 <80> 3c 02 00 0f 85 09 06 00 00 4c 8b 65 18 0f 1f 44 00 00 65 8b 1d RSP: 0018:ffff88800fda6bf8 EFLAGS: 00010282 RAX: dffffc0000000000 RBX: ffff8880050ed800 RCX: 0000000000000000 RDX: 0000000000000003 RSI: ffffffff99e34100 RDI: 0000000000000018 RBP: 0000000000000000 R08: fffffbfff346b553 R09: fffffbfff346b553 R10: 0000000000000001 R11: fffffbfff346b552 R12: ffffffffc0824940 R13: ffff888109e83800 R14: 00000000ffffffff R15: ffffffffc08249e0 FS: 00007f5042287680(0000) GS:ffff888119800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ae1f4dbd90 CR3: 0000000006760002 CR4: 00000000003706e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ? rcu_read_lock_bh_held+0xa0/0xa0 dsmark_reset+0x3d/0xf0 [sch_dsmark] qdisc_reset+0xa9/0x680 qdisc_destroy+0x84/0x370 qdisc_create_dflt+0x1fe/0x380 attach_one_default_qdisc.constprop.41+0xa4/0x180 dev_activate+0x4d5/0x8c0 ? __dev_open+0x268/0x390 __dev_open+0x270/0x390

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Taehee Yoo ap420073@gmail.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- net/sched/sch_dsmark.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/sched/sch_dsmark.c b/net/sched/sch_dsmark.c index 73e07f00e71a2..d011cc7511f80 100644 --- a/net/sched/sch_dsmark.c +++ b/net/sched/sch_dsmark.c @@ -403,7 +403,8 @@ static void dsmark_reset(struct Qdisc *sch) struct dsmark_qdisc_data *p = qdisc_priv(sch);

pr_debug("%s(sch %p,[qdisc %p])\n", __func__, sch, p); - qdisc_reset(p->q); + if (p->q) + qdisc_reset(p->q); sch->qstats.backlog = 0; sch->q.qlen = 0; }

From: Randy Dunlap rdunlap@infradead.org

[ Upstream commit fef532ea0cd871afab7d9a7b6e9da99ac2c24371 ]

rt2880_wdt.c uses (well, attempts to use) rt_sysc_membase. However, when this watchdog driver is built as a loadable module, there is a build error since the rt_sysc_membase symbol is not exported. Export it to quell the build error.

ERROR: modpost: "rt_sysc_membase" [drivers/watchdog/rt2880_wdt.ko] undefined!

Fixes: 473cf939ff34 ("watchdog: add ralink watchdog driver") Signed-off-by: Randy Dunlap rdunlap@infradead.org Cc: Guenter Roeck linux@roeck-us.net Cc: Wim Van Sebroeck wim@iguana.be Cc: John Crispin john@phrozen.org Cc: linux-mips@vger.kernel.org Cc: linux-watchdog@vger.kernel.org Acked-by: Guenter Roeck linux@roeck-us.net Signed-off-by: Thomas Bogendoerfer tsbogend@alpha.franken.de Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- arch/mips/ralink/of.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/arch/mips/ralink/of.c b/arch/mips/ralink/of.c index 1ada8492733b6..92b3d48499967 100644 --- a/arch/mips/ralink/of.c +++ b/arch/mips/ralink/of.c @@ -10,6 +10,7 @@

#include <linux/io.h> #include <linux/clk.h> +#include <linux/export.h> #include <linux/init.h> #include <linux/sizes.h> #include <linux/of_fdt.h> @@ -27,6 +28,7 @@

__iomem void *rt_sysc_membase; __iomem void *rt_memc_membase; +EXPORT_SYMBOL_GPL(rt_sysc_membase);

__iomem void *plat_of_remap_node(const char *node) {

From: Jesse Brandeburg jesse.brandeburg@intel.com

commit 7c8c0291f84027558bd5fca5729cbcf288c510f4 upstream.

As part of the W=1 compliation series, these lines all created warnings about unused variables that were assigned a value. Most of them are from register reads, but some are just picking up a return value from a function and never doing anything with it.

Fixed warnings: .../ethernet/brocade/bna/bnad.c:3280:6: warning: variable ‘rx_count’ set but not used [-Wunused-but-set-variable] .../ethernet/brocade/bna/bnad.c:3280:6: warning: variable ‘rx_count’ set but not used [-Wunused-but-set-variable] .../ethernet/cortina/gemini.c:512:6: warning: variable ‘val’ set but not used [-Wunused-but-set-variable] .../ethernet/cortina/gemini.c:2110:21: warning: variable ‘config0’ set but not used [-Wunused-but-set-variable] .../ethernet/cavium/liquidio/octeon_device.c:1327:6: warning: variable ‘val32’ set but not used [-Wunused-but-set-variable] .../ethernet/cavium/liquidio/octeon_device.c:1358:6: warning: variable ‘val32’ set but not used [-Wunused-but-set-variable] .../ethernet/dec/tulip/media.c:322:8: warning: variable ‘setup’ set but not used [-Wunused-but-set-variable] .../ethernet/dec/tulip/de4x5.c:4928:13: warning: variable ‘r3’ set but not used [-Wunused-but-set-variable] .../ethernet/micrel/ksz884x.c:1652:7: warning: variable ‘dummy’ set but not used [-Wunused-but-set-variable] .../ethernet/micrel/ksz884x.c:1652:7: warning: variable ‘dummy’ set but not used [-Wunused-but-set-variable] .../ethernet/micrel/ksz884x.c:1652:7: warning: variable ‘dummy’ set but not used [-Wunused-but-set-variable] .../ethernet/micrel/ksz884x.c:1652:7: warning: variable ‘dummy’ set but not used [-Wunused-but-set-variable] .../ethernet/micrel/ksz884x.c:4981:6: warning: variable ‘rx_status’ set but not used [-Wunused-but-set-variable] .../ethernet/micrel/ksz884x.c:6510:6: warning: variable ‘rc’ set but not used [-Wunused-but-set-variable] .../ethernet/micrel/ksz884x.c:6087: warning: cannot understand function prototype: 'struct hw_regs ' .../ethernet/microchip/lan743x_main.c:161:6: warning: variable ‘int_en’ set but not used [-Wunused-but-set-variable] .../ethernet/microchip/lan743x_main.c:1702:6: warning: variable ‘int_sts’ set but not used [-Wunused-but-set-variable] .../ethernet/microchip/lan743x_main.c:3041:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable] .../ethernet/natsemi/ns83820.c:603:6: warning: variable ‘tbisr’ set but not used [-Wunused-but-set-variable] .../ethernet/natsemi/ns83820.c:1207:11: warning: variable ‘tanar’ set but not used [-Wunused-but-set-variable] .../ethernet/marvell/mvneta.c:754:6: warning: variable ‘dummy’ set but not used [-Wunused-but-set-variable] .../ethernet/neterion/vxge/vxge-traffic.c:33:6: warning: variable ‘val64’ set but not used [-Wunused-but-set-variable] .../ethernet/neterion/vxge/vxge-traffic.c:160:6: warning: variable ‘val64’ set but not used [-Wunused-but-set-variable] .../ethernet/neterion/vxge/vxge-traffic.c:490:6: warning: variable ‘val32’ set but not used [-Wunused-but-set-variable] .../ethernet/neterion/vxge/vxge-traffic.c:2378:6: warning: variable ‘val64’ set but not used [-Wunused-but-set-variable] .../ethernet/packetengines/yellowfin.c:1063:18: warning: variable ‘yf_size’ set but not used [-Wunused-but-set-variable] .../ethernet/realtek/8139cp.c:1242:6: warning: variable ‘rc’ set but not used [-Wunused-but-set-variable] .../ethernet/mellanox/mlx4/en_tx.c:858:6: warning: variable ‘ring_cons’ set but not used [-Wunused-but-set-variable] .../ethernet/sis/sis900.c:792:6: warning: variable ‘status’ set but not used [-Wunused-but-set-variable] .../ethernet/sfc/falcon/farch.c:878:11: warning: variable ‘rx_ev_pkt_type’ set but not used [-Wunused-but-set-variable] .../ethernet/sfc/falcon/farch.c:877:23: warning: variable ‘rx_ev_mcast_pkt’ set but not used [-Wunused-but-set-variable] .../ethernet/sfc/falcon/farch.c:877:7: warning: variable ‘rx_ev_hdr_type’ set but not used [-Wunused-but-set-variable] .../ethernet/sfc/falcon/farch.c:876:7: warning: variable ‘rx_ev_other_err’ set but not used [-Wunused-but-set-variable] .../ethernet/sfc/falcon/farch.c:1646:21: warning: variable ‘buftbl_min’ set but not used [-Wunused-but-set-variable] .../ethernet/sfc/falcon/farch.c:2535:32: warning: variable ‘spec’ set but not used [-Wunused-but-set-variable] .../ethernet/via/via-velocity.c:880:6: warning: variable ‘curr_status’ set but not used [-Wunused-but-set-variable] .../ethernet/ti/tlan.c:656:6: warning: variable ‘rc’ set but not used [-Wunused-but-set-variable] .../ethernet/ti/davinci_emac.c:1230:6: warning: variable ‘num_tx_pkts’ set but not used [-Wunused-but-set-variable] .../ethernet/synopsys/dwc-xlgmac-common.c:516:8: warning: variable ‘str’ set but not used [-Wunused-but-set-variable] .../ethernet/ti/cpsw_new.c:1662:22: warning: variable ‘priv’ set but not used [-Wunused-but-set-variable]

The register reads should be OK, because the current implementation of readl and friends will always execute even without an lvalue.

When it makes sense, just remove the lvalue assignment and the local. Other times, just remove the offending code, and occasionally, just mark the variable as maybe unused since it could be used in an ifdef or debug scenario.

Only compile tested with W=1.

Signed-off-by: Jesse Brandeburg jesse.brandeburg@intel.com Acked-by: Edward Cree ecree@solarflare.com Signed-off-by: David S. Miller davem@davemloft.net [fixes gcc-11 build warnings - gregkh] Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/net/ethernet/brocade/bna/bnad.c | 7 ++-- drivers/net/ethernet/dec/tulip/de4x5.c | 4 +-- drivers/net/ethernet/dec/tulip/media.c | 5 --- drivers/net/ethernet/mellanox/mlx4/en_tx.c | 2 +- drivers/net/ethernet/micrel/ksz884x.c | 3 +- drivers/net/ethernet/microchip/lan743x_main.c | 6 ++-- .../net/ethernet/neterion/vxge/vxge-traffic.c | 32 +++++++------------ drivers/net/ethernet/sfc/falcon/farch.c | 29 +++++++---------- drivers/net/ethernet/sis/sis900.c | 5 ++- .../net/ethernet/synopsys/dwc-xlgmac-common.c | 2 +- drivers/net/ethernet/ti/davinci_emac.c | 5 ++- drivers/net/ethernet/ti/tlan.c | 4 +-- drivers/net/ethernet/via/via-velocity.c | 13 -------- 13 files changed, 36 insertions(+), 81 deletions(-)

diff --git a/drivers/net/ethernet/brocade/bna/bnad.c b/drivers/net/ethernet/brocade/bna/bnad.c index ea5f32ea308a9..1e25c3b5f563b 100644 --- a/drivers/net/ethernet/brocade/bna/bnad.c +++ b/drivers/net/ethernet/brocade/bna/bnad.c @@ -3290,7 +3290,7 @@ bnad_change_mtu(struct net_device *netdev, int new_mtu) { int err, mtu; struct bnad *bnad = netdev_priv(netdev); - u32 rx_count = 0, frame, new_frame; + u32 frame, new_frame;

mutex_lock(&bnad->conf_mutex);

@@ -3306,12 +3306,9 @@ bnad_change_mtu(struct net_device *netdev, int new_mtu) /* only when transition is over 4K */ if ((frame <= 4096 && new_frame > 4096) || (frame > 4096 && new_frame <= 4096)) - rx_count = bnad_reinit_rx(bnad); + bnad_reinit_rx(bnad); }

- /* rx_count > 0 - new rx created - * - Linux set err = 0 and return - */ err = bnad_mtu_set(bnad, new_frame); if (err) err = -EBUSY; diff --git a/drivers/net/ethernet/dec/tulip/de4x5.c b/drivers/net/ethernet/dec/tulip/de4x5.c index f16853c3c851a..c813e6f2b371e 100644 --- a/drivers/net/ethernet/dec/tulip/de4x5.c +++ b/drivers/net/ethernet/dec/tulip/de4x5.c @@ -4927,11 +4927,11 @@ mii_get_oui(u_char phyaddr, u_long ioaddr) u_char breg[2]; } a; int i, r2, r3, ret=0;*/ - int r2, r3; + int r2;

/* Read r2 and r3 */ r2 = mii_rd(MII_ID0, phyaddr, ioaddr); - r3 = mii_rd(MII_ID1, phyaddr, ioaddr); + mii_rd(MII_ID1, phyaddr, ioaddr); /* SEEQ and Cypress way * / / * Shuffle r2 and r3 * / a.reg=0; diff --git a/drivers/net/ethernet/dec/tulip/media.c b/drivers/net/ethernet/dec/tulip/media.c index dcf21a36a9cf4..011604787b8ed 100644 --- a/drivers/net/ethernet/dec/tulip/media.c +++ b/drivers/net/ethernet/dec/tulip/media.c @@ -319,13 +319,8 @@ void tulip_select_media(struct net_device *dev, int startup) break; } case 5: case 6: { - u16 setup[5]; - new_csr6 = 0; /* FIXME */

- for (i = 0; i < 5; i++) - setup[i] = get_u16(&p[i*2 + 1]); - if (startup && mtable->has_reset) { struct medialeaf *rleaf = &mtable->mleaf[mtable->has_reset]; unsigned char *rst = rleaf->leafdata; diff --git a/drivers/net/ethernet/mellanox/mlx4/en_tx.c b/drivers/net/ethernet/mellanox/mlx4/en_tx.c index 29041d4a3f28e..6517e53da520d 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_tx.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_tx.c @@ -862,6 +862,7 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev) struct mlx4_en_tx_desc *tx_desc; struct mlx4_wqe_data_seg *data; struct mlx4_en_tx_info *tx_info; + u32 __maybe_unused ring_cons; int tx_ind; int nr_txbb; int desc_size; @@ -875,7 +876,6 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev) bool stop_queue; bool inline_ok; u8 data_offset; - u32 ring_cons; bool bf_ok;

tx_ind = skb_get_queue_mapping(skb); diff --git a/drivers/net/ethernet/micrel/ksz884x.c b/drivers/net/ethernet/micrel/ksz884x.c index ebbdfb9087451..623a05d78343d 100644 --- a/drivers/net/ethernet/micrel/ksz884x.c +++ b/drivers/net/ethernet/micrel/ksz884x.c @@ -1657,8 +1657,7 @@ static inline void set_tx_len(struct ksz_desc *desc, u32 len)

#define HW_DELAY(hw, reg) \ do { \ - u16 dummy; \ - dummy = readw(hw->io + reg); \ + readw(hw->io + reg); \ } while (0)

/** diff --git a/drivers/net/ethernet/microchip/lan743x_main.c b/drivers/net/ethernet/microchip/lan743x_main.c index df4519c04ba07..0d681714878b1 100644 --- a/drivers/net/ethernet/microchip/lan743x_main.c +++ b/drivers/net/ethernet/microchip/lan743x_main.c @@ -156,9 +156,8 @@ static void lan743x_tx_isr(void *context, u32 int_sts, u32 flags) struct lan743x_tx *tx = context; struct lan743x_adapter *adapter = tx->adapter; bool enable_flag = true; - u32 int_en = 0;

- int_en = lan743x_csr_read(adapter, INT_EN_SET); + lan743x_csr_read(adapter, INT_EN_SET); if (flags & LAN743X_VECTOR_FLAG_SOURCE_ENABLE_CLEAR) { lan743x_csr_write(adapter, INT_EN_CLR, INT_BIT_DMA_TX_(tx->channel_number)); @@ -1635,10 +1634,9 @@ static int lan743x_tx_napi_poll(struct napi_struct *napi, int weight) bool start_transmitter = false; unsigned long irq_flags = 0; u32 ioc_bit = 0; - u32 int_sts = 0;

ioc_bit = DMAC_INT_BIT_TX_IOC_(tx->channel_number); - int_sts = lan743x_csr_read(adapter, DMAC_INT_STS); + lan743x_csr_read(adapter, DMAC_INT_STS); if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_STATUS_W2C) lan743x_csr_write(adapter, DMAC_INT_STS, ioc_bit); spin_lock_irqsave(&tx->ring_lock, irq_flags); diff --git a/drivers/net/ethernet/neterion/vxge/vxge-traffic.c b/drivers/net/ethernet/neterion/vxge/vxge-traffic.c index 0c3b5dea2858a..ad3702d3d8310 100644 --- a/drivers/net/ethernet/neterion/vxge/vxge-traffic.c +++ b/drivers/net/ethernet/neterion/vxge/vxge-traffic.c @@ -29,8 +29,6 @@ */ enum vxge_hw_status vxge_hw_vpath_intr_enable(struct __vxge_hw_vpath_handle *vp) { - u64 val64; - struct __vxge_hw_virtualpath *vpath; struct vxge_hw_vpath_reg __iomem *vp_reg; enum vxge_hw_status status = VXGE_HW_OK; @@ -83,7 +81,7 @@ enum vxge_hw_status vxge_hw_vpath_intr_enable(struct __vxge_hw_vpath_handle *vp) __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, &vp_reg->xgmac_vp_int_status);

- val64 = readq(&vp_reg->vpath_general_int_status); + readq(&vp_reg->vpath_general_int_status);

/* Mask unwanted interrupts */

@@ -156,8 +154,6 @@ enum vxge_hw_status vxge_hw_vpath_intr_enable(struct __vxge_hw_vpath_handle *vp) enum vxge_hw_status vxge_hw_vpath_intr_disable( struct __vxge_hw_vpath_handle *vp) { - u64 val64; - struct __vxge_hw_virtualpath *vpath; enum vxge_hw_status status = VXGE_HW_OK; struct vxge_hw_vpath_reg __iomem *vp_reg; @@ -178,8 +174,6 @@ enum vxge_hw_status vxge_hw_vpath_intr_disable( (u32)VXGE_HW_INTR_MASK_ALL, &vp_reg->vpath_general_int_mask);

- val64 = VXGE_HW_TIM_CLR_INT_EN_VP(1 << (16 - vpath->vp_id)); - writeq(VXGE_HW_INTR_MASK_ALL, &vp_reg->kdfcctl_errors_mask);

__vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, @@ -486,9 +480,7 @@ void vxge_hw_device_unmask_all(struct __vxge_hw_device *hldev) */ void vxge_hw_device_flush_io(struct __vxge_hw_device *hldev) { - u32 val32; - - val32 = readl(&hldev->common_reg->titan_general_int_status); + readl(&hldev->common_reg->titan_general_int_status); }

/** @@ -1726,8 +1718,8 @@ void vxge_hw_fifo_txdl_free(struct __vxge_hw_fifo *fifo, void *txdlh) enum vxge_hw_status vxge_hw_vpath_mac_addr_add( struct __vxge_hw_vpath_handle *vp, - u8 (macaddr)[ETH_ALEN], - u8 (macaddr_mask)[ETH_ALEN], + u8 *macaddr, + u8 *macaddr_mask, enum vxge_hw_vpath_mac_addr_add_mode duplicate_mode) { u32 i; @@ -1789,8 +1781,8 @@ vxge_hw_vpath_mac_addr_add( enum vxge_hw_status vxge_hw_vpath_mac_addr_get( struct __vxge_hw_vpath_handle *vp, - u8 (macaddr)[ETH_ALEN], - u8 (macaddr_mask)[ETH_ALEN]) + u8 *macaddr, + u8 *macaddr_mask) { u32 i; u64 data1 = 0ULL; @@ -1841,8 +1833,8 @@ vxge_hw_vpath_mac_addr_get( enum vxge_hw_status vxge_hw_vpath_mac_addr_get_next( struct __vxge_hw_vpath_handle *vp, - u8 (macaddr)[ETH_ALEN], - u8 (macaddr_mask)[ETH_ALEN]) + u8 *macaddr, + u8 *macaddr_mask) { u32 i; u64 data1 = 0ULL; @@ -1894,8 +1886,8 @@ vxge_hw_vpath_mac_addr_get_next( enum vxge_hw_status vxge_hw_vpath_mac_addr_delete( struct __vxge_hw_vpath_handle *vp, - u8 (macaddr)[ETH_ALEN], - u8 (macaddr_mask)[ETH_ALEN]) + u8 *macaddr, + u8 *macaddr_mask) { u32 i; u64 data1 = 0ULL; @@ -2385,7 +2377,6 @@ enum vxge_hw_status vxge_hw_vpath_poll_rx(struct __vxge_hw_ring *ring) u8 t_code; enum vxge_hw_status status = VXGE_HW_OK; void *first_rxdh; - u64 val64 = 0; int new_count = 0;

ring->cmpl_cnt = 0; @@ -2413,8 +2404,7 @@ enum vxge_hw_status vxge_hw_vpath_poll_rx(struct __vxge_hw_ring *ring) } writeq(VXGE_HW_PRC_RXD_DOORBELL_NEW_QW_CNT(new_count), &ring->vp_reg->prc_rxd_doorbell); - val64 = - readl(&ring->common_reg->titan_general_int_status); + readl(&ring->common_reg->titan_general_int_status); ring->doorbell_cnt = 0; } } diff --git a/drivers/net/ethernet/sfc/falcon/farch.c b/drivers/net/ethernet/sfc/falcon/farch.c index 411a2f419447c..8a14f77163026 100644 --- a/drivers/net/ethernet/sfc/falcon/farch.c +++ b/drivers/net/ethernet/sfc/falcon/farch.c @@ -873,17 +873,12 @@ static u16 ef4_farch_handle_rx_not_ok(struct ef4_rx_queue *rx_queue, { struct ef4_channel *channel = ef4_rx_queue_channel(rx_queue); struct ef4_nic *efx = rx_queue->efx; - bool rx_ev_buf_owner_id_err, rx_ev_ip_hdr_chksum_err; + bool __maybe_unused rx_ev_buf_owner_id_err, rx_ev_ip_hdr_chksum_err; bool rx_ev_tcp_udp_chksum_err, rx_ev_eth_crc_err; bool rx_ev_frm_trunc, rx_ev_drib_nib, rx_ev_tobe_disc; - bool rx_ev_other_err, rx_ev_pause_frm; - bool rx_ev_hdr_type, rx_ev_mcast_pkt; - unsigned rx_ev_pkt_type; + bool rx_ev_pause_frm;

- rx_ev_hdr_type = EF4_QWORD_FIELD(*event, FSF_AZ_RX_EV_HDR_TYPE); - rx_ev_mcast_pkt = EF4_QWORD_FIELD(*event, FSF_AZ_RX_EV_MCAST_PKT); rx_ev_tobe_disc = EF4_QWORD_FIELD(*event, FSF_AZ_RX_EV_TOBE_DISC); - rx_ev_pkt_type = EF4_QWORD_FIELD(*event, FSF_AZ_RX_EV_PKT_TYPE); rx_ev_buf_owner_id_err = EF4_QWORD_FIELD(*event, FSF_AZ_RX_EV_BUF_OWNER_ID_ERR); rx_ev_ip_hdr_chksum_err = EF4_QWORD_FIELD(*event, @@ -896,10 +891,6 @@ static u16 ef4_farch_handle_rx_not_ok(struct ef4_rx_queue *rx_queue, 0 : EF4_QWORD_FIELD(*event, FSF_AA_RX_EV_DRIB_NIB)); rx_ev_pause_frm = EF4_QWORD_FIELD(*event, FSF_AZ_RX_EV_PAUSE_FRM_ERR);

- /* Every error apart from tobe_disc and pause_frm */ - rx_ev_other_err = (rx_ev_drib_nib | rx_ev_tcp_udp_chksum_err | - rx_ev_buf_owner_id_err | rx_ev_eth_crc_err | - rx_ev_frm_trunc | rx_ev_ip_hdr_chksum_err);

/* Count errors that are not in MAC stats. Ignore expected * checksum errors during self-test. */ @@ -919,6 +910,13 @@ static u16 ef4_farch_handle_rx_not_ok(struct ef4_rx_queue *rx_queue, * to a FIFO overflow. */ #ifdef DEBUG + { + /* Every error apart from tobe_disc and pause_frm */ + + bool rx_ev_other_err = (rx_ev_drib_nib | rx_ev_tcp_udp_chksum_err | + rx_ev_buf_owner_id_err | rx_ev_eth_crc_err | + rx_ev_frm_trunc | rx_ev_ip_hdr_chksum_err); + if (rx_ev_other_err && net_ratelimit()) { netif_dbg(efx, rx_err, efx->net_dev, " RX queue %d unexpected RX event " @@ -935,6 +933,7 @@ static u16 ef4_farch_handle_rx_not_ok(struct ef4_rx_queue *rx_queue, rx_ev_tobe_disc ? " [TOBE_DISC]" : "", rx_ev_pause_frm ? " [PAUSE]" : ""); } + } #endif

/* The frame must be discarded if any of these are true. */ @@ -1646,15 +1645,11 @@ void ef4_farch_rx_push_indir_table(struct ef4_nic *efx) */ void ef4_farch_dimension_resources(struct ef4_nic *efx, unsigned sram_lim_qw) { - unsigned vi_count, buftbl_min; + unsigned vi_count;

/* Account for the buffer table entries backing the datapath channels * and the descriptor caches for those channels. */ - buftbl_min = ((efx->n_rx_channels * EF4_MAX_DMAQ_SIZE + - efx->n_tx_channels * EF4_TXQ_TYPES * EF4_MAX_DMAQ_SIZE + - efx->n_channels * EF4_MAX_EVQ_SIZE) - * sizeof(ef4_qword_t) / EF4_BUF_SIZE); vi_count = max(efx->n_channels, efx->n_tx_channels * EF4_TXQ_TYPES);

efx->tx_dc_base = sram_lim_qw - vi_count * TX_DC_ENTRIES; @@ -2535,7 +2530,6 @@ int ef4_farch_filter_remove_safe(struct ef4_nic *efx, enum ef4_farch_filter_table_id table_id; struct ef4_farch_filter_table *table; unsigned int filter_idx; - struct ef4_farch_filter_spec *spec; int rc;

table_id = ef4_farch_filter_id_table_id(filter_id); @@ -2546,7 +2540,6 @@ int ef4_farch_filter_remove_safe(struct ef4_nic *efx, filter_idx = ef4_farch_filter_id_index(filter_id); if (filter_idx >= table->size) return -ENOENT; - spec = &table->spec[filter_idx];

spin_lock_bh(&efx->filter_lock); rc = ef4_farch_filter_remove(efx, table, filter_idx, priority); diff --git a/drivers/net/ethernet/sis/sis900.c b/drivers/net/ethernet/sis/sis900.c index d5bcbc40a55fc..823873030a218 100644 --- a/drivers/net/ethernet/sis/sis900.c +++ b/drivers/net/ethernet/sis/sis900.c @@ -783,10 +783,9 @@ static u16 sis900_default_phy(struct net_device * net_dev) static void sis900_set_capability(struct net_device *net_dev, struct mii_phy *phy) { u16 cap; - u16 status;

- status = mdio_read(net_dev, phy->phy_addr, MII_STATUS); - status = mdio_read(net_dev, phy->phy_addr, MII_STATUS); + mdio_read(net_dev, phy->phy_addr, MII_STATUS); + mdio_read(net_dev, phy->phy_addr, MII_STATUS);

cap = MII_NWAY_CSMA_CD | ((phy->status & MII_STAT_CAN_TX_FDX)? MII_NWAY_TX_FDX:0) | diff --git a/drivers/net/ethernet/synopsys/dwc-xlgmac-common.c b/drivers/net/ethernet/synopsys/dwc-xlgmac-common.c index eb1c6b03c329a..df26cea459048 100644 --- a/drivers/net/ethernet/synopsys/dwc-xlgmac-common.c +++ b/drivers/net/ethernet/synopsys/dwc-xlgmac-common.c @@ -513,7 +513,7 @@ void xlgmac_get_all_hw_features(struct xlgmac_pdata *pdata)

void xlgmac_print_all_hw_features(struct xlgmac_pdata *pdata) { - char *str = NULL; + char __maybe_unused *str = NULL;

XLGMAC_PR("\n"); XLGMAC_PR("=====================================================\n"); diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c index 9bb84d83afc15..56130cf293f37 100644 --- a/drivers/net/ethernet/ti/davinci_emac.c +++ b/drivers/net/ethernet/ti/davinci_emac.c @@ -1240,7 +1240,7 @@ static int emac_poll(struct napi_struct *napi, int budget) struct net_device *ndev = priv->ndev; struct device *emac_dev = &ndev->dev; u32 status = 0; - u32 num_tx_pkts = 0, num_rx_pkts = 0; + u32 num_rx_pkts = 0;

/* Check interrupt vectors and call packet processing */ status = emac_read(EMAC_MACINVECTOR); @@ -1251,8 +1251,7 @@ static int emac_poll(struct napi_struct *napi, int budget) mask = EMAC_DM646X_MAC_IN_VECTOR_TX_INT_VEC;

if (status & mask) { - num_tx_pkts = cpdma_chan_process(priv->txchan, - EMAC_DEF_TX_MAX_SERVICE); + cpdma_chan_process(priv->txchan, EMAC_DEF_TX_MAX_SERVICE); } /* TX processing */

mask = EMAC_DM644X_MAC_IN_VECTOR_RX_INT_VEC; diff --git a/drivers/net/ethernet/ti/tlan.c b/drivers/net/ethernet/ti/tlan.c index 93d142867c2af..01f99e5df1456 100644 --- a/drivers/net/ethernet/ti/tlan.c +++ b/drivers/net/ethernet/ti/tlan.c @@ -671,7 +671,6 @@ module_exit(tlan_exit); static void __init tlan_eisa_probe(void) { long ioaddr; - int rc = -ENODEV; int irq; u16 device_id;

@@ -736,8 +735,7 @@ static void __init tlan_eisa_probe(void)

/* Setup the newly found eisa adapter */ - rc = tlan_probe1(NULL, ioaddr, irq, - 12, NULL); + tlan_probe1(NULL, ioaddr, irq, 12, NULL); continue;

out: diff --git a/drivers/net/ethernet/via/via-velocity.c b/drivers/net/ethernet/via/via-velocity.c index ef9538ee53d0d..f0c33d00dcb41 100644 --- a/drivers/net/ethernet/via/via-velocity.c +++ b/drivers/net/ethernet/via/via-velocity.c @@ -875,26 +875,13 @@ static u32 check_connection_type(struct mac_regs __iomem *regs) */ static int velocity_set_media_mode(struct velocity_info *vptr, u32 mii_status) { - u32 curr_status; struct mac_regs __iomem *regs = vptr->mac_regs;

vptr->mii_status = mii_check_media_mode(vptr->mac_regs); - curr_status = vptr->mii_status & (~VELOCITY_LINK_FAIL);

/* Set mii link status */ set_mii_flow_control(vptr);

- /* - Check if new status is consistent with current status - if (((mii_status & curr_status) & VELOCITY_AUTONEG_ENABLE) || - (mii_status==curr_status)) { - vptr->mii_status=mii_check_media_mode(vptr->mac_regs); - vptr->mii_status=check_connection_type(vptr->mac_regs); - VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity link no change\n"); - return 0; - } - */ - if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201) MII_REG_BITS_ON(AUXCR_MDPPS, MII_NCONFIG, vptr->mac_regs);

From: Chunfeng Yun chunfeng.yun@mediatek.com

commit 90d28fb53d4a51299ff324dede015d5cb11b88a2 upstream.

Return the exactly delay time given by root hub descriptor, this helps to reduce resume time etc.

Due to the root hub descriptor is usually provided by the host controller driver, if there is compatibility for a root hub, we can fix it easily without affect other root hub

Acked-by: Alan Stern stern@rowland.harvard.edu Signed-off-by: Chunfeng Yun chunfeng.yun@mediatek.com Link: https://lore.kernel.org/r/1618017645-12259-1-git-send-email-chunfeng.yun@med... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/usb/core/hub.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/core/hub.h b/drivers/usb/core/hub.h index d0bbbd76ba8e9..df3aa0b69188f 100644 --- a/drivers/usb/core/hub.h +++ b/drivers/usb/core/hub.h @@ -146,8 +146,10 @@ static inline unsigned hub_power_on_good_delay(struct usb_hub *hub) { unsigned delay = hub->descriptor->bPwrOn2PwrGood * 2;

- /* Wait at least 100 msec for power to become stable */ - return max(delay, 100U); + if (!hub->hdev->parent) /* root hub */ + return delay; + else /* Wait at least 100 msec for power to become stable */ + return max(delay, 100U); }

static inline int hub_port_debounce_be_connected(struct usb_hub *hub,