April 2025 - Kernel - mailweb.openeuler.org

[PATCH OLK-6.6 v2] bpf: Add tracepoints with null-able arguments
by Pu Lehui 07 Apr '25

07 Apr '25

From: Jiri Olsa <jolsa(a)kernel.org> mainline inclusion from mainline-v6.15-rc1 commit c83e2d970bae8616b94c40caa43d85f2f2c7d81e category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IBY5DV Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Some of the tracepoints slipped when we did the first scan, adding them now. Fixes: 838a10bd2ebf ("bpf: Augment raw_tp arguments with PTR_MAYBE_NULL") Signed-off-by: Jiri Olsa <jolsa(a)kernel.org> Link: https://lore.kernel.org/r/20250210175913.2893549-1-jolsa@kernel.org Signed-off-by: Alexei Starovoitov <ast(a)kernel.org> Signed-off-by: Pu Lehui <pulehui(a)huawei.com> --- kernel/bpf/btf.c | 99 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 99 insertions(+) diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c index bbc99401b4e7..39fc33e6368f 100644 --- a/kernel/bpf/btf.c +++ b/kernel/bpf/btf.c @@ -5997,6 +5997,8 @@ static const struct bpf_raw_tp_null_args raw_tp_null_args[] = { /* rxrpc */ { "rxrpc_recvdata", 0x1 }, { "rxrpc_resend", 0x10 }, + { "rxrpc_tq", 0x10 }, + { "rxrpc_client", 0x1 }, /* sunrpc */ { "xs_stream_read_data", 0x1 }, /* ... from xprt_cong_event event class */ @@ -6017,6 +6019,103 @@ static const struct bpf_raw_tp_null_args raw_tp_null_args[] = { { "mr_integ_alloc", 0x2000 }, /* bpf_testmod */ { "bpf_testmod_test_read", 0x0 }, + /* amdgpu */ + { "amdgpu_vm_bo_map", 0x1 }, + { "amdgpu_vm_bo_unmap", 0x1 }, + /* netfs */ + { "netfs_folioq", 0x1 }, + /* xfs from xfs_defer_pending_class */ + { "xfs_defer_create_intent", 0x1 }, + { "xfs_defer_cancel_list", 0x1 }, + { "xfs_defer_pending_finish", 0x1 }, + { "xfs_defer_pending_abort", 0x1 }, + { "xfs_defer_relog_intent", 0x1 }, + { "xfs_defer_isolate_paused", 0x1 }, + { "xfs_defer_item_pause", 0x1 }, + { "xfs_defer_item_unpause", 0x1 }, + /* xfs from xfs_defer_pending_item_class */ + { "xfs_defer_add_item", 0x1 }, + { "xfs_defer_cancel_item", 0x1 }, + { "xfs_defer_finish_item", 0x1 }, + /* xfs from xfs_icwalk_class */ + { "xfs_ioc_free_eofblocks", 0x10 }, + { "xfs_blockgc_free_space", 0x10 }, + /* xfs from xfs_btree_cur_class */ + { "xfs_btree_updkeys", 0x100 }, + { "xfs_btree_overlapped_query_range", 0x100 }, + /* xfs from xfs_imap_class*/ + { "xfs_map_blocks_found", 0x10000 }, + { "xfs_map_blocks_alloc", 0x10000 }, + { "xfs_iomap_alloc", 0x1000 }, + { "xfs_iomap_found", 0x1000 }, + /* xfs from xfs_fs_class */ + { "xfs_inodegc_flush", 0x1 }, + { "xfs_inodegc_push", 0x1 }, + { "xfs_inodegc_start", 0x1 }, + { "xfs_inodegc_stop", 0x1 }, + { "xfs_inodegc_queue", 0x1 }, + { "xfs_inodegc_throttle", 0x1 }, + { "xfs_fs_sync_fs", 0x1 }, + { "xfs_blockgc_start", 0x1 }, + { "xfs_blockgc_stop", 0x1 }, + { "xfs_blockgc_worker", 0x1 }, + { "xfs_blockgc_flush_all", 0x1 }, + /* xfs_scrub */ + { "xchk_nlinks_live_update", 0x10 }, + /* xfs_scrub from xchk_metapath_class */ + { "xchk_metapath_lookup", 0x100 }, + /* nfsd */ + { "nfsd_dirent", 0x1 }, + { "nfsd_file_acquire", 0x1001 }, + { "nfsd_file_insert_err", 0x1 }, + { "nfsd_file_cons_err", 0x1 }, + /* nfs4 */ + { "nfs4_setup_sequence", 0x1 }, + { "pnfs_update_layout", 0x10000 }, + { "nfs4_inode_callback_event", 0x200 }, + { "nfs4_inode_stateid_callback_event", 0x200 }, + /* nfs from pnfs_layout_event */ + { "pnfs_mds_fallback_pg_init_read", 0x10000 }, + { "pnfs_mds_fallback_pg_init_write", 0x10000 }, + { "pnfs_mds_fallback_pg_get_mirror_count", 0x10000 }, + { "pnfs_mds_fallback_read_done", 0x10000 }, + { "pnfs_mds_fallback_write_done", 0x10000 }, + { "pnfs_mds_fallback_read_pagelist", 0x10000 }, + { "pnfs_mds_fallback_write_pagelist", 0x10000 }, + /* coda */ + { "coda_dec_pic_run", 0x10 }, + { "coda_dec_pic_done", 0x10 }, + /* cfg80211 */ + { "cfg80211_scan_done", 0x11 }, + { "rdev_set_coalesce", 0x10 }, + { "cfg80211_report_wowlan_wakeup", 0x100 }, + { "cfg80211_inform_bss_frame", 0x100 }, + { "cfg80211_michael_mic_failure", 0x10000 }, + /* cfg80211 from wiphy_work_event */ + { "wiphy_work_queue", 0x10 }, + { "wiphy_work_run", 0x10 }, + { "wiphy_work_cancel", 0x10 }, + { "wiphy_work_flush", 0x10 }, + /* hugetlbfs */ + { "hugetlbfs_alloc_inode", 0x10 }, + /* spufs */ + { "spufs_context", 0x10 }, + /* kvm_hv */ + { "kvm_page_fault_enter", 0x100 }, + /* dpu */ + { "dpu_crtc_setup_mixer", 0x100 }, + /* binder */ + { "binder_transaction", 0x100 }, + /* bcachefs */ + { "btree_path_free", 0x100 }, + /* hfi1_tx */ + { "hfi1_sdma_progress", 0x1000 }, + /* iptfs */ + { "iptfs_ingress_postq_event", 0x1000 }, + /* neigh */ + { "neigh_update", 0x10 }, + /* snd_firewire_lib */ + { "amdtp_packet", 0x100 }, }; bool btf_ctx_access(int off, int size, enum bpf_access_type type, -- 2.34.1

2 1

[PATCH openEuler-1.0-LTS] ALSA: hda/via: Avoid potential array out-of-bound in add_secret_dac_path()
by Yuntao Liu 07 Apr '25

07 Apr '25

From: Artemii Karasev <karasev(a)ispras.ru> stable inclusion from stable-v4.19.273 commit 6e1f586ddec48d71016b81acf68ba9f49ca54db8 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBWVYV CVE: CVE-2023-52988 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit b9cee506da2b7920b5ea02ccd8e78a907d0ee7aa ] snd_hda_get_connections() can return a negative error code. It may lead to accessing 'conn' array at a negative index. Found by Linux Verification Center (linuxtesting.org) with SVACE. Signed-off-by: Artemii Karasev <karasev(a)ispras.ru> Fixes: 30b4503378c9 ("ALSA: hda - Expose secret DAC-AA connection of some VIA codecs") Link: https://lore.kernel.org/r/20230119082259.3634-1-karasev@ispras.ru Signed-off-by: Takashi Iwai <tiwai(a)suse.de> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Yuntao Liu <liuyuntao12(a)huawei.com> --- sound/pci/hda/patch_via.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/sound/pci/hda/patch_via.c b/sound/pci/hda/patch_via.c index 6b9617aee0e6..a6253e4f44bd 100644 --- a/sound/pci/hda/patch_via.c +++ b/sound/pci/hda/patch_via.c @@ -833,6 +833,9 @@ static int add_secret_dac_path(struct hda_codec *codec) return 0; nums = snd_hda_get_connections(codec, spec->gen.mixer_nid, conn, ARRAY_SIZE(conn) - 1); + if (nums < 0) + return nums; + for (i = 0; i < nums; i++) { if (get_wcaps_type(get_wcaps(codec, conn[i])) == AC_WID_AUD_OUT) return 0; -- 2.34.1

2 1

[PATCH OLK-6.6 0/1] CVE-2025-21941
by Lin Yujun 07 Apr '25

07 Apr '25

Ma Ke (1): drm/amd/display: Fix null check for pipe_ctx->plane_state in resource_build_scaling_params drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) -- 2.34.1

2 2

[PATCH OLK-5.10] Revert "arm64: mm: add mc support for __buffer_migrate_page"
by Wupeng Ma 07 Apr '25

07 Apr '25

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IB0OV7 -------------------------------- This reverts commit 19e1c50695fc0ff8a34799ce4342b0e6f105d230. During our test, it is found that this will lead to NULL pointer dereference as follow: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 pc : __find_get_block_slow+0xbc/0x29c lr : __find_get_block_slow+0x50/0x29c Call trace: __find_get_block_slow+0xbc/0x29c __find_get_block+0xa8/0xd0 __getblk_gfp+0x30/0x84 ext4_getblk+0x90/0x244 [ext4] ext4_bread+0x1c/0x10c [ext4] __ext4_read_dirblock.part.0+0x48/0x32c [ext4] ext4_dx_find_entry+0xb0/0x220 [ext4] __ext4_find_entry+0x3f0/0x470 [ext4] ext4_lookup.part.0+0x5c/0x240 [ext4] ext4_lookup+0x2c/0x50 [ext4] lookup_open.isra.0+0x1d4/0x3c4 open_last_lookups+0x36c/0x3d0 path_openat+0x8c/0x1f0 do_filp_open+0x88/0x150 do_open_execat+0x78/0x1cc alloc_bprm+0x30/0x180 Revert this for a better solution. Fixes: 19e1c50695fc ("arm64: mm: add mc support for __buffer_migrate_page") Signed-off-by: Wupeng Ma <mawupeng1(a)huawei.com> --- mm/migrate.c | 12 +----------- 1 file changed, 1 insertion(+), 11 deletions(-) diff --git a/mm/migrate.c b/mm/migrate.c index 0d79382f9697..cf8c05ea821e 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -820,7 +820,6 @@ static int __buffer_migrate_page(struct address_space *mapping, struct buffer_head *bh, *head; int rc; int expected_count; - bool copy_done = false; if (!page_has_buffers(page)) return migrate_page(mapping, newpage, page, mode); @@ -861,13 +860,7 @@ static int __buffer_migrate_page(struct address_space *mapping, } } - if (IS_ENABLED(CONFIG_ARM64) && IS_ENABLED(CONFIG_ARCH_HAS_COPY_MC) && - (mode != MIGRATE_SYNC_NO_COPY)) { - rc = migrate_page_mc_extra(mapping, newpage, page, mode, 0); - copy_done = true; - } else { - rc = migrate_page_move_mapping(mapping, newpage, page, 0); - } + rc = migrate_page_move_mapping(mapping, newpage, page, 0); if (rc != MIGRATEPAGE_SUCCESS) goto unlock_buffers; @@ -880,9 +873,6 @@ static int __buffer_migrate_page(struct address_space *mapping, } while (bh != head); - if (copy_done) - goto unlock_buffers; - if (mode != MIGRATE_SYNC_NO_COPY) migrate_page_copy(newpage, page); else -- 2.43.0

2 1

[PATCH OLK-6.6 0/1] CVE-2025-21892
by Lin Yujun 07 Apr '25

07 Apr '25

Yishai Hadas (1): RDMA/mlx5: Fix the recovery flow of the UMR QP drivers/infiniband/hw/mlx5/umr.c | 83 +++++++++++++++++++++----------- 1 file changed, 56 insertions(+), 27 deletions(-) -- 2.34.1

2 2

[PATCH OLK-6.6 0/1] CVE-2025-21877
by Lin Yujun 07 Apr '25

07 Apr '25

Nikita Zhandarovich (1): usbnet: gl620a: fix endpoint checking in genelink_bind() drivers/net/usb/gl620a.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) -- 2.34.1

2 2

[PATCH OLK-5.10 0/1] CVE-2025-21877
by Lin Yujun 07 Apr '25

07 Apr '25

Nikita Zhandarovich (1): usbnet: gl620a: fix endpoint checking in genelink_bind() drivers/net/usb/gl620a.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) -- 2.34.1

2 2

[PATCH OLK-6.6 0/3] fix CVE-2025-21976
by Xiangwei Li 07 Apr '25

07 Apr '25

Saurabh Sengar (2): fbdev: hyperv_fb: Simplify hvfb_putmem fbdev: hyperv_fb: Allow graceful removal of framebuffer Thomas Weißschuh (1): fbdev: Introduce devm_register_framebuffer() drivers/video/fbdev/core/fbmem.c | 30 ++++++++++++++++++++++++++++++ drivers/video/fbdev/hyperv_fb.c | 30 ++++++++++++++++++++---------- include/linux/fb.h | 1 + 3 files changed, 51 insertions(+), 10 deletions(-) -- 2.25.1

2 4

[PATCH OLK-6.6] slimbus: messaging: Free transaction ID in delayed interrupt scenario
by Xiaomeng Zhang 07 Apr '25

07 Apr '25

From: Visweswara Tanuku <quic_vtanuku(a)quicinc.com> stable inclusion from stable-v6.6.83 commit faac8e894014e8167471a8e4a5eb35a8fefbb82a category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBY44F CVE: CVE-2025-21914 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit dcb0d43ba8eb9517e70b1a0e4b0ae0ab657a0e5a upstream. In case of interrupt delay for any reason, slim_do_transfer() returns timeout error but the transaction ID (TID) is not freed. This results into invalid memory access inside qcom_slim_ngd_rx_msgq_cb() due to invalid TID. Fix the issue by freeing the TID in slim_do_transfer() before returning timeout error to avoid invalid memory access. Call trace: __memcpy_fromio+0x20/0x190 qcom_slim_ngd_rx_msgq_cb+0x130/0x290 [slim_qcom_ngd_ctrl] vchan_complete+0x2a0/0x4a0 tasklet_action_common+0x274/0x700 tasklet_action+0x28/0x3c _stext+0x188/0x620 run_ksoftirqd+0x34/0x74 smpboot_thread_fn+0x1d8/0x464 kthread+0x178/0x238 ret_from_fork+0x10/0x20 Code: aa0003e8 91000429 f100044a 3940002b (3800150b) ---[ end trace 0fe00bec2b975c99 ]--- Kernel panic - not syncing: Oops: Fatal exception in interrupt. Fixes: afbdcc7c384b ("slimbus: Add messaging APIs to slimbus framework") Cc: stable <stable(a)kernel.org> Signed-off-by: Visweswara Tanuku <quic_vtanuku(a)quicinc.com> Link: https://lore.kernel.org/r/20250124125740.16897-1-quic_vtanuku@quicinc.com Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: ZhangPeng <zhangpeng362(a)huawei.com> Signed-off-by: Xiaomeng Zhang <zhangxiaomeng13(a)huawei.com> --- drivers/slimbus/messaging.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/slimbus/messaging.c b/drivers/slimbus/messaging.c index 4ce0cb61e481..245e9c7f92cd 100644 --- a/drivers/slimbus/messaging.c +++ b/drivers/slimbus/messaging.c @@ -147,8 +147,9 @@ int slim_do_transfer(struct slim_controller *ctrl, struct slim_msg_txn *txn) } ret = ctrl->xfer_msg(ctrl, txn); - - if (!ret && need_tid && !txn->msg->comp) { + if (ret == -ETIMEDOUT) { + slim_free_txn_tid(ctrl, txn); + } else if (!ret && need_tid && !txn->msg->comp) { unsigned long ms = txn->rl + HZ; timeout = wait_for_completion_timeout(txn->comp, -- 2.34.1

2 1

[PATCH OLK-6.6] wifi: cfg80211: regulatory: improve invalid hints checking
by Xiaomeng Zhang 07 Apr '25

07 Apr '25

From: Nikita Zhandarovich <n.zhandarovich(a)fintech.ru> stable inclusion from stable-v6.6.83 commit 35ef07112b61b06eb30683a6563c9f6378c02476 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBYYFS CVE: CVE-2025-21910 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 59b348be7597c4a9903cb003c69e37df20c04a30 upstream. Syzbot keeps reporting an issue [1] that occurs when erroneous symbols sent from userspace get through into user_alpha2[] via regulatory_hint_user() call. Such invalid regulatory hints should be rejected. While a sanity check from commit 47caf685a685 ("cfg80211: regulatory: reject invalid hints") looks to be enough to deter these very cases, there is a way to get around it due to 2 reasons. 1) The way isalpha() works, symbols other than latin lower and upper letters may be used to determine a country/domain. For instance, greek letters will also be considered upper/lower letters and for such characters isalpha() will return true as well. However, ISO-3166-1 alpha2 codes should only hold latin characters. 2) While processing a user regulatory request, between reg_process_hint_user() and regulatory_hint_user() there happens to be a call to queue_regulatory_request() which modifies letters in request->alpha2[] with toupper(). This works fine for latin symbols, less so for weird letter characters from the second part of _ctype[]. Syzbot triggers a warning in is_user_regdom_saved() by first sending over an unexpected non-latin letter that gets malformed by toupper() into a character that ends up failing isalpha() check. Prevent this by enhancing is_an_alpha2() to ensure that incoming symbols are latin letters and nothing else. [1] Syzbot report: ------------[ cut here ]------------ Unexpected user alpha2: A� WARNING: CPU: 1 PID: 964 at net/wireless/reg.c:442 is_user_regdom_saved net/wireless/reg.c:440 [inline] WARNING: CPU: 1 PID: 964 at net/wireless/reg.c:442 restore_alpha2 net/wireless/reg.c:3424 [inline] WARNING: CPU: 1 PID: 964 at net/wireless/reg.c:442 restore_regulatory_settings+0x3c0/0x1e50 net/wireless/reg.c:3516 Modules linked in: CPU: 1 UID: 0 PID: 964 Comm: kworker/1:2 Not tainted 6.12.0-rc5-syzkaller-00044-gc1e939a21eb1 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: events_power_efficient crda_timeout_work RIP: 0010:is_user_regdom_saved net/wireless/reg.c:440 [inline] RIP: 0010:restore_alpha2 net/wireless/reg.c:3424 [inline] RIP: 0010:restore_regulatory_settings+0x3c0/0x1e50 net/wireless/reg.c:3516 ... Call Trace: <TASK> crda_timeout_work+0x27/0x50 net/wireless/reg.c:542 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa65/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f2/0x390 kernel/kthread.c:389 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 </TASK> Reported-by: syzbot+e10709ac3c44f3d4e800(a)syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=e10709ac3c44f3d4e800 Fixes: 09d989d179d0 ("cfg80211: add regulatory hint disconnect support") Cc: stable(a)kernel.org Signed-off-by: Nikita Zhandarovich <n.zhandarovich(a)fintech.ru> Link: https://patch.msgid.link/20250228134659.1577656-1-n.zhandarovich@fintech.ru Signed-off-by: Johannes Berg <johannes.berg(a)intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: ZhangPeng <zhangpeng362(a)huawei.com> Signed-off-by: Xiaomeng Zhang <zhangxiaomeng13(a)huawei.com> --- net/wireless/reg.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/wireless/reg.c b/net/wireless/reg.c index 0317cf9da307..9e0366ea86f4 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -405,7 +405,8 @@ static bool is_an_alpha2(const char *alpha2) { if (!alpha2) return false; - return isalpha(alpha2[0]) && isalpha(alpha2[1]); + return isascii(alpha2[0]) && isalpha(alpha2[0]) && + isascii(alpha2[1]) && isalpha(alpha2[1]); } static bool alpha2_equal(const char *alpha2_x, const char *alpha2_y) -- 2.34.1

2 1