From: Shigeru Yoshida <syoshida(a)redhat.com>
mainline inclusion
from mainline-v6.9-rc7
commit fc1092f51567277509563800a3c56732070b6aa4
category: bugfix
bugzilla: 190087
CVE: CVE-2024-36927
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?…
--------------------------------
KMSAN reported uninit-value access in __ip_make_skb() [1]. __ip_make_skb()
tests HDRINCL to know if the skb has icmphdr. However, HDRINCL can cause a
race condition. If calling setsockopt(2) with IP_HDRINCL changes HDRINCL
while __ip_make_skb() is running, the function will access icmphdr in the
skb even if it is not included. This causes the issue reported by KMSAN.
Check FLOWI_FLAG_KNOWN_NH on fl4->flowi4_flags instead of testing HDRINCL
on the socket.
Also, fl4->fl4_icmp_type and fl4->fl4_icmp_code are not initialized. These
are union in struct flowi4 and are implicitly initialized by
flowi4_init_output(), but we should not rely on specific union layout.
Initialize these explicitly in raw_sendmsg().
[1]
BUG: KMSAN: uninit-value in __ip_make_skb+0x2b74/0x2d20 net/ipv4/ip_output.c:1481
__ip_make_skb+0x2b74/0x2d20 net/ipv4/ip_output.c:1481
ip_finish_skb include/net/ip.h:243 [inline]
ip_push_pending_frames+0x4c/0x5c0 net/ipv4/ip_output.c:1508
raw_sendmsg+0x2381/0x2690 net/ipv4/raw.c:654
inet_sendmsg+0x27b/0x2a0 net/ipv4/af_inet.c:851
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x274/0x3c0 net/socket.c:745
__sys_sendto+0x62c/0x7b0 net/socket.c:2191
__do_sys_sendto net/socket.c:2203 [inline]
__se_sys_sendto net/socket.c:2199 [inline]
__x64_sys_sendto+0x130/0x200 net/socket.c:2199
do_syscall_64+0xd8/0x1f0 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x6d/0x75
Uninit was created at:
slab_post_alloc_hook mm/slub.c:3804 [inline]
slab_alloc_node mm/slub.c:3845 [inline]
kmem_cache_alloc_node+0x5f6/0xc50 mm/slub.c:3888
kmalloc_reserve+0x13c/0x4a0 net/core/skbuff.c:577
__alloc_skb+0x35a/0x7c0 net/core/skbuff.c:668
alloc_skb include/linux/skbuff.h:1318 [inline]
__ip_append_data+0x49ab/0x68c0 net/ipv4/ip_output.c:1128
ip_append_data+0x1e7/0x260 net/ipv4/ip_output.c:1365
raw_sendmsg+0x22b1/0x2690 net/ipv4/raw.c:648
inet_sendmsg+0x27b/0x2a0 net/ipv4/af_inet.c:851
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x274/0x3c0 net/socket.c:745
__sys_sendto+0x62c/0x7b0 net/socket.c:2191
__do_sys_sendto net/socket.c:2203 [inline]
__se_sys_sendto net/socket.c:2199 [inline]
__x64_sys_sendto+0x130/0x200 net/socket.c:2199
do_syscall_64+0xd8/0x1f0 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x6d/0x75
CPU: 1 PID: 15709 Comm: syz-executor.7 Not tainted 6.8.0-11567-gb3603fcb79b1 #25
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-1.fc39 04/01/2014
Fixes: 99e5acae193e ("ipv4: Fix potential uninit variable access bug in __ip_make_skb()")
Reported-by: syzkaller <syzkaller(a)googlegroups.com>
Signed-off-by: Shigeru Yoshida <syoshida(a)redhat.com>
Link: https://lore.kernel.org/r/20240430123945.2057348-1-syoshida@redhat.com
Signed-off-by: Paolo Abeni <pabeni(a)redhat.com>
Conflicts:
net/ipv4/ip_output.c
[commit cafbe182a467 wasnt merged in 5.10, which leads to context
conflicts for inet_test_bit() not implemented]
Signed-off-by: Dong Chenchen <dongchenchen2(a)huawei.com>
---
net/ipv4/ip_output.c | 3 ++-
net/ipv4/raw.c | 3 +++
2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 5d20dac19e0b..79ff136ae6f5 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -1571,7 +1571,8 @@ struct sk_buff *__ip_make_skb(struct sock *sk,
* so icmphdr does not in skb linear region and can not get icmp_type
* by icmp_hdr(skb)->type.
*/
- if (sk->sk_type == SOCK_RAW && !inet_sk(sk)->hdrincl)
+ if (sk->sk_type == SOCK_RAW &&
+ !(fl4->flowi4_flags & FLOWI_FLAG_KNOWN_NH))
icmp_type = fl4->fl4_icmp_type;
else
icmp_type = icmp_hdr(skb)->type;
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index 5336731b2401..3909dcccdd3e 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -606,6 +606,9 @@ static int raw_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
(hdrincl ? FLOWI_FLAG_KNOWN_NH : 0),
daddr, saddr, 0, 0, sk->sk_uid);
+ fl4.fl4_icmp_type = 0;
+ fl4.fl4_icmp_code = 0;
+
if (!hdrincl) {
rfv.msg = msg;
rfv.hlen = 0;
--
2.25.1
From: Willem de Bruijn <willemb(a)google.com>
mainline inclusion
from mainline-v6.11-rc1
commit dd89a81d850fa9a65f67b4527c0e420d15bf836c
category: bugfix
bugzilla: https://gitee.com/src-openeuler/kernel/issues/IAMMLZ
CVE: CVE-2024-44940
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?…
--------------------------------
Drop the WARN_ON_ONCE inn gue_gro_receive if the encapsulated type is
not known or does not have a GRO handler.
Such a packet is easily constructed. Syzbot generates them and sets
off this warning.
Remove the warning as it is expected and not actionable.
The warning was previously reduced from WARN_ON to WARN_ON_ONCE in
commit 270136613bf7 ("fou: Do WARN_ON_ONCE in gue_gro_receive for bad
proto callbacks").
Signed-off-by: Willem de Bruijn <willemb(a)google.com>
Reviewed-by: Eric Dumazet <edumazet(a)google.com>
Link: https://lore.kernel.org/r/20240614122552.1649044-1-willemdebruijn.kernel@gm…
Signed-off-by: Jakub Kicinski <kuba(a)kernel.org>
Conflicts:
net/ipv4/fou.c
net/ipv4/fou_core.c
[The file where the code is located is changed due to refactoring]
Signed-off-by: ZhangPeng <zhangpeng362(a)huawei.com>
---
net/ipv4/fou.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/ipv4/fou.c b/net/ipv4/fou.c
index e5f69b0bf3df..3b777457ad5b 100644
--- a/net/ipv4/fou.c
+++ b/net/ipv4/fou.c
@@ -441,7 +441,7 @@ static struct sk_buff *gue_gro_receive(struct sock *sk,
rcu_read_lock();
offloads = NAPI_GRO_CB(skb)->is_ipv6 ? inet6_offloads : inet_offloads;
ops = rcu_dereference(offloads[proto]);
- if (WARN_ON_ONCE(!ops || !ops->callbacks.gro_receive))
+ if (!ops || !ops->callbacks.gro_receive)
goto out_unlock;
pp = call_gro_receive(ops->callbacks.gro_receive, head, skb);
--
2.25.1
From: Willem de Bruijn <willemb(a)google.com>
mainline inclusion
from mainline-v6.11-rc1
commit dd89a81d850fa9a65f67b4527c0e420d15bf836c
category: bugfix
bugzilla: https://gitee.com/src-openeuler/kernel/issues/IAMMLZ
CVE: CVE-2024-44940
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?…
--------------------------------
Drop the WARN_ON_ONCE inn gue_gro_receive if the encapsulated type is
not known or does not have a GRO handler.
Such a packet is easily constructed. Syzbot generates them and sets
off this warning.
Remove the warning as it is expected and not actionable.
The warning was previously reduced from WARN_ON to WARN_ON_ONCE in
commit 270136613bf7 ("fou: Do WARN_ON_ONCE in gue_gro_receive for bad
proto callbacks").
Signed-off-by: Willem de Bruijn <willemb(a)google.com>
Reviewed-by: Eric Dumazet <edumazet(a)google.com>
Link: https://lore.kernel.org/r/20240614122552.1649044-1-willemdebruijn.kernel@gm…
Signed-off-by: Jakub Kicinski <kuba(a)kernel.org>
Conflicts:
net/ipv4/fou.c
net/ipv4/fou_core.c
[The file where the code is located is changed due to refactoring]
Signed-off-by: ZhangPeng <zhangpeng362(a)huawei.com>
---
net/ipv4/fou.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/ipv4/fou.c b/net/ipv4/fou.c
index e5f69b0bf3df..3b777457ad5b 100644
--- a/net/ipv4/fou.c
+++ b/net/ipv4/fou.c
@@ -441,7 +441,7 @@ static struct sk_buff *gue_gro_receive(struct sock *sk,
rcu_read_lock();
offloads = NAPI_GRO_CB(skb)->is_ipv6 ? inet6_offloads : inet_offloads;
ops = rcu_dereference(offloads[proto]);
- if (WARN_ON_ONCE(!ops || !ops->callbacks.gro_receive))
+ if (!ops || !ops->callbacks.gro_receive)
goto out_unlock;
pp = call_gro_receive(ops->callbacks.gro_receive, head, skb);
--
2.25.1
From: Mathias Nyman <mathias.nyman(a)linux.intel.com>
stable inclusion
from stable-v5.10.225
commit 0f0654318e25b2c185e245ba4a591e42fabb5e59
category: bugfix
bugzilla: https://gitee.com/src-openeuler/kernel/issues/IAOXZE
CVE: CVE-2024-45006
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id…
--------------------------------
commit af8e119f52e9c13e556be9e03f27957554a84656 upstream.
re-enumerating full-speed devices after a failed address device command
can trigger a NULL pointer dereference.
Full-speed devices may need to reconfigure the endpoint 0 Max Packet Size
value during enumeration. Usb core calls usb_ep0_reinit() in this case,
which ends up calling xhci_configure_endpoint().
On Panther point xHC the xhci_configure_endpoint() function will
additionally check and reserve bandwidth in software. Other hosts do
this in hardware
If xHC address device command fails then a new xhci_virt_device structure
is allocated as part of re-enabling the slot, but the bandwidth table
pointers are not set up properly here.
This triggers the NULL pointer dereference the next time usb_ep0_reinit()
is called and xhci_configure_endpoint() tries to check and reserve
bandwidth
[46710.713538] usb 3-1: new full-speed USB device number 5 using xhci_hcd
[46710.713699] usb 3-1: Device not responding to setup address.
[46710.917684] usb 3-1: Device not responding to setup address.
[46711.125536] usb 3-1: device not accepting address 5, error -71
[46711.125594] BUG: kernel NULL pointer dereference, address: 0000000000000008
[46711.125600] #PF: supervisor read access in kernel mode
[46711.125603] #PF: error_code(0x0000) - not-present page
[46711.125606] PGD 0 P4D 0
[46711.125610] Oops: Oops: 0000 [#1] PREEMPT SMP PTI
[46711.125615] CPU: 1 PID: 25760 Comm: kworker/1:2 Not tainted 6.10.3_2 #1
[46711.125620] Hardware name: Gigabyte Technology Co., Ltd.
[46711.125623] Workqueue: usb_hub_wq hub_event [usbcore]
[46711.125668] RIP: 0010:xhci_reserve_bandwidth (drivers/usb/host/xhci.c
Fix this by making sure bandwidth table pointers are set up correctly
after a failed address device command, and additionally by avoiding
checking for bandwidth in cases like this where no actual endpoints are
added or removed, i.e. only context for default control endpoint 0 is
evaluated.
Reported-by: Karel Balej <balejk(a)matfyz.cz>
Closes: https://lore.kernel.org/linux-usb/D3CKQQAETH47.1MUO22RTCH2O3@matfyz.cz/
Cc: stable(a)vger.kernel.org
Fixes: 651aaf36a7d7 ("usb: xhci: Handle USB transaction error on address command")
Signed-off-by: Mathias Nyman <mathias.nyman(a)linux.intel.com>
Link: https://lore.kernel.org/r/20240815141117.2702314-2-mathias.nyman@linux.inte…
Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org>
Signed-off-by: ZhangPeng <zhangpeng362(a)huawei.com>
---
drivers/usb/host/xhci.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index b37ddbb88b74..b4e5b15fbed9 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -2826,7 +2826,7 @@ static int xhci_configure_endpoint(struct xhci_hcd *xhci,
xhci->num_active_eps);
return -ENOMEM;
}
- if ((xhci->quirks & XHCI_SW_BW_CHECKING) &&
+ if ((xhci->quirks & XHCI_SW_BW_CHECKING) && !ctx_change &&
xhci_reserve_bandwidth(xhci, virt_dev, command->in_ctx)) {
if ((xhci->quirks & XHCI_EP_LIMIT_QUIRK))
xhci_free_host_resources(xhci, ctrl_ctx);
@@ -4242,8 +4242,10 @@ static int xhci_setup_device(struct usb_hcd *hcd, struct usb_device *udev,
mutex_unlock(&xhci->mutex);
ret = xhci_disable_slot(xhci, udev->slot_id);
xhci_free_virt_device(xhci, udev->slot_id);
- if (!ret)
- xhci_alloc_dev(hcd, udev);
+ if (!ret) {
+ if (xhci_alloc_dev(hcd, udev) == 1)
+ xhci_setup_addressable_virt_dev(xhci, udev);
+ }
kfree(command->completion);
kfree(command);
return -EPROTO;
--
2.25.1
From: Mathias Nyman <mathias.nyman(a)linux.intel.com>
stable inclusion
from stable-v5.10.225
commit 0f0654318e25b2c185e245ba4a591e42fabb5e59
category: bugfix
bugzilla: https://gitee.com/src-openeuler/kernel/issues/IAOXZE
CVE: CVE-2024-45006
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id…
--------------------------------
commit af8e119f52e9c13e556be9e03f27957554a84656 upstream.
re-enumerating full-speed devices after a failed address device command
can trigger a NULL pointer dereference.
Full-speed devices may need to reconfigure the endpoint 0 Max Packet Size
value during enumeration. Usb core calls usb_ep0_reinit() in this case,
which ends up calling xhci_configure_endpoint().
On Panther point xHC the xhci_configure_endpoint() function will
additionally check and reserve bandwidth in software. Other hosts do
this in hardware
If xHC address device command fails then a new xhci_virt_device structure
is allocated as part of re-enabling the slot, but the bandwidth table
pointers are not set up properly here.
This triggers the NULL pointer dereference the next time usb_ep0_reinit()
is called and xhci_configure_endpoint() tries to check and reserve
bandwidth
[46710.713538] usb 3-1: new full-speed USB device number 5 using xhci_hcd
[46710.713699] usb 3-1: Device not responding to setup address.
[46710.917684] usb 3-1: Device not responding to setup address.
[46711.125536] usb 3-1: device not accepting address 5, error -71
[46711.125594] BUG: kernel NULL pointer dereference, address: 0000000000000008
[46711.125600] #PF: supervisor read access in kernel mode
[46711.125603] #PF: error_code(0x0000) - not-present page
[46711.125606] PGD 0 P4D 0
[46711.125610] Oops: Oops: 0000 [#1] PREEMPT SMP PTI
[46711.125615] CPU: 1 PID: 25760 Comm: kworker/1:2 Not tainted 6.10.3_2 #1
[46711.125620] Hardware name: Gigabyte Technology Co., Ltd.
[46711.125623] Workqueue: usb_hub_wq hub_event [usbcore]
[46711.125668] RIP: 0010:xhci_reserve_bandwidth (drivers/usb/host/xhci.c
Fix this by making sure bandwidth table pointers are set up correctly
after a failed address device command, and additionally by avoiding
checking for bandwidth in cases like this where no actual endpoints are
added or removed, i.e. only context for default control endpoint 0 is
evaluated.
Reported-by: Karel Balej <balejk(a)matfyz.cz>
Closes: https://lore.kernel.org/linux-usb/D3CKQQAETH47.1MUO22RTCH2O3@matfyz.cz/
Cc: stable(a)vger.kernel.org
Fixes: 651aaf36a7d7 ("usb: xhci: Handle USB transaction error on address command")
Signed-off-by: Mathias Nyman <mathias.nyman(a)linux.intel.com>
Link: https://lore.kernel.org/r/20240815141117.2702314-2-mathias.nyman@linux.inte…
Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org>
Signed-off-by: ZhangPeng <zhangpeng362(a)huawei.com>
---
drivers/usb/host/xhci.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index b37ddbb88b74..b4e5b15fbed9 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -2826,7 +2826,7 @@ static int xhci_configure_endpoint(struct xhci_hcd *xhci,
xhci->num_active_eps);
return -ENOMEM;
}
- if ((xhci->quirks & XHCI_SW_BW_CHECKING) &&
+ if ((xhci->quirks & XHCI_SW_BW_CHECKING) && !ctx_change &&
xhci_reserve_bandwidth(xhci, virt_dev, command->in_ctx)) {
if ((xhci->quirks & XHCI_EP_LIMIT_QUIRK))
xhci_free_host_resources(xhci, ctrl_ctx);
@@ -4242,8 +4242,10 @@ static int xhci_setup_device(struct usb_hcd *hcd, struct usb_device *udev,
mutex_unlock(&xhci->mutex);
ret = xhci_disable_slot(xhci, udev->slot_id);
xhci_free_virt_device(xhci, udev->slot_id);
- if (!ret)
- xhci_alloc_dev(hcd, udev);
+ if (!ret) {
+ if (xhci_alloc_dev(hcd, udev) == 1)
+ xhci_setup_addressable_virt_dev(xhci, udev);
+ }
kfree(command->completion);
kfree(command);
return -EPROTO;
--
2.25.1