CVE-2021-47269

The Linux Kernel, the operating system core itself.

Security Fix(es):

In the Linux kernel, the following vulnerability has been resolved:

usb: dwc3: ep0: fix NULL pointer exception

There is no validation of the index from dwc3_wIndex_to_dep() and we might be referring a non-existing ep and trigger a NULL pointer exception. In certain configurations we might use fewer eps and the index might wrongly indicate a larger ep index than existing.

By adding this validation from the patch we can actually report a wrong index back to the caller.

In our usecase we are using a composite device on an older kernel, but upstream might use this fix also. Unfortunately, I cannot describe the hardware for others to reproduce the issue as it is a proprietary implementation.

[ 82.958261] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000a4 [ 82.966891] Mem abort info: [ 82.969663] ESR = 0x96000006 [ 82.972703] Exception class = DABT (current EL), IL = 32 bits [ 82.978603] SET = 0, FnV = 0 [ 82.981642] EA = 0, S1PTW = 0 [ 82.984765] Data abort info: [ 82.987631] ISV = 0, ISS = 0x00000006 [ 82.991449] CM = 0, WnR = 0 [ 82.994409] user pgtable: 4k pages, 39-bit VAs, pgdp = 00000000c6210ccc [ 83.000999] [00000000000000a4] pgd=0000000053aa5003, pud=0000000053aa5003, pmd=0000000000000000 [ 83.009685] Internal error: Oops: 96000006 [#1] PREEMPT SMP [ 83.026433] Process irq/62-dwc3 (pid: 303, stack limit = 0x000000003985154c) [ 83.033470] CPU: 0 PID: 303 Comm: irq/62-dwc3 Not tainted 4.19.124 #1 [ 83.044836] pstate: 60000085 (nZCv daIf -PAN -UAO) [ 83.049628] pc : dwc3_ep0_handle_feature+0x414/0x43c [ 83.054558] lr : dwc3_ep0_interrupt+0x3b4/0xc94

...

[ 83.141788] Call trace: [ 83.144227] dwc3_ep0_handle_feature+0x414/0x43c [ 83.148823] dwc3_ep0_interrupt+0x3b4/0xc94 [ 83.181546] ---[ end trace aac6b5267d84c32f ]---(CVE-2021-47269)

In the Linux kernel, the following vulnerability has been resolved:

isdn: mISDN: netjet: Fix crash in nj_probe:

'nj_setup' in netjet.c might fail with -EIO and in this case 'card->irq' is initialized and is bigger than zero. A subsequent call to 'nj_release' will free the irq that has not been requested.

Fix this bug by deleting the previous assignment to 'card->irq' and just keep the assignment before 'request_irq'.

The KASAN's log reveals it:

[ 3.354615 ] WARNING: CPU: 0 PID: 1 at kernel/irq/manage.c:1826 free_irq+0x100/0x480 [ 3.355112 ] Modules linked in: [ 3.355310 ] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.13.0-rc1-00144-g25a1298726e #13 [ 3.355816 ] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 3.356552 ] RIP: 0010:free_irq+0x100/0x480 [ 3.356820 ] Code: 6e 08 74 6f 4d 89 f4 e8 5e ac 09 00 4d 8b 74 24 18 4d 85 f6 75 e3 e8 4f ac 09 00 8b 75 c8 48 c7 c7 78 c1 2e 85 e8 e0 cf f5 ff <0f> 0b 48 8b 75 c0 4c 89 ff e8 72 33 0b 03 48 8b 43 40 4c 8b a0 80 [ 3.358012 ] RSP: 0000:ffffc90000017b48 EFLAGS: 00010082 [ 3.358357 ] RAX: 0000000000000000 RBX: ffff888104dc8000 RCX: 0000000000000000 [ 3.358814 ] RDX: ffff8881003c8000 RSI: ffffffff8124a9e6 RDI: 00000000ffffffff [ 3.359272 ] RBP: ffffc90000017b88 R08: 0000000000000000 R09: 0000000000000000 [ 3.359732 ] R10: ffffc900000179f0 R11: 0000000000001d04 R12: 0000000000000000 [ 3.360195 ] R13: ffff888107dc6000 R14: ffff888107dc6928 R15: ffff888104dc80a8 [ 3.360652 ] FS: 0000000000000000(0000) GS:ffff88817bc00000(0000) knlGS:0000000000000000 [ 3.361170 ] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3.361538 ] CR2: 0000000000000000 CR3: 000000000582e000 CR4: 00000000000006f0 [ 3.362003 ] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 3.362175 ] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 3.362175 ] Call Trace: [ …

The Linux Kernel, the operating system core itself.

Security Fix(es):

In the Linux kernel, the following vulnerability has been resolved:

usb: dwc3: ep0: fix NULL pointer exception

There is no validation of the index from dwc3_wIndex_to_dep() and we might be referring a non-existing ep and trigger a NULL pointer exception. In certain configurations we might use fewer eps and the index might wrongly indicate a larger ep index than existing.

By adding this validation from the patch we can actually report a wrong index back to the caller.

In our usecase we are using a composite device on an older kernel, but upstream might use this fix also. Unfortunately, I cannot describe the hardware for others to reproduce the issue as it is a proprietary implementation.

[ 82.958261] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000a4 [ 82.966891] Mem abort info: [ 82.969663] ESR = 0x96000006 [ 82.972703] Exception class = DABT (current EL), IL = 32 bits [ 82.978603] SET = 0, FnV = 0 [ 82.981642] EA = 0, S1PTW = 0 [ 82.984765] Data abort info: [ 82.987631] ISV = 0, ISS = 0x00000006 [ 82.991449] CM = 0, WnR = 0 [ 82.994409] user pgtable: 4k pages, 39-bit VAs, pgdp = 00000000c6210ccc [ 83.000999] [00000000000000a4] pgd=0000000053aa5003, pud=0000000053aa5003, pmd=0000000000000000 [ 83.009685] Internal error: Oops: 96000006 [#1] PREEMPT SMP [ 83.026433] Process irq/62-dwc3 (pid: 303, stack limit = 0x000000003985154c) [ 83.033470] CPU: 0 PID: 303 Comm: irq/62-dwc3 Not tainted 4.19.124 #1 [ 83.044836] pstate: 60000085 (nZCv daIf -PAN -UAO) [ 83.049628] pc : dwc3_ep0_handle_feature+0x414/0x43c [ 83.054558] lr : dwc3_ep0_interrupt+0x3b4/0xc94

...

[ 83.141788] Call trace: [ 83.144227] dwc3_ep0_handle_feature+0x414/0x43c [ 83.148823] dwc3_ep0_interrupt+0x3b4/0xc94 [ 83.181546] ---[ end trace aac6b5267d84c32f ]---(CVE-2021-47269)

In the Linux kernel, the following vulnerability has been resolved:

isdn: mISDN: netjet: Fix crash in nj_probe:

'nj_setup' in netjet.c might fail with -EIO and in this case 'card->irq' is initialized and is bigger than zero. A subsequent call to 'nj_release' will free the irq that has not been requested.

Fix this bug by deleting the previous assignment to 'card->irq' and just keep the assignment before 'request_irq'.

The KASAN's log reveals it:

[ 3.354615 ] WARNING: CPU: 0 PID: 1 at kernel/irq/manage.c:1826 free_irq+0x100/0x480 [ 3.355112 ] Modules linked in: [ 3.355310 ] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.13.0-rc1-00144-g25a1298726e #13 [ 3.355816 ] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 3.356552 ] RIP: 0010:free_irq+0x100/0x480 [ 3.356820 ] Code: 6e 08 74 6f 4d 89 f4 e8 5e ac 09 00 4d 8b 74 24 18 4d 85 f6 75 e3 e8 4f ac 09 00 8b 75 c8 48 c7 c7 78 c1 2e 85 e8 e0 cf f5 ff <0f> 0b 48 8b 75 c0 4c 89 ff e8 72 33 0b 03 48 8b 43 40 4c 8b a0 80 [ 3.358012 ] RSP: 0000:ffffc90000017b48 EFLAGS: 00010082 [ 3.358357 ] RAX: 0000000000000000 RBX: ffff888104dc8000 RCX: 0000000000000000 [ 3.358814 ] RDX: ffff8881003c8000 RSI: ffffffff8124a9e6 RDI: 00000000ffffffff [ 3.359272 ] RBP: ffffc90000017b88 R08: 0000000000000000 R09: 0000000000000000 [ 3.359732 ] R10: ffffc900000179f0 R11: 0000000000001d04 R12: 0000000000000000 [ 3.360195 ] R13: ffff888107dc6000 R14: ffff888107dc6928 R15: ffff888104dc80a8 [ 3.360652 ] FS: 0000000000000000(0000) GS:ffff88817bc00000(0000) knlGS:0000000000000000 [ 3.361170 ] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3.361538 ] CR2: 0000000000000000 CR3: 000000000582e000 CR4: 00000000000006f0 [ 3.362003 ] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 3.362175 ] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 3.362175 ] Call Trace: [ …

In the Linux kernel, the following vulnerability has been resolved: usb: dwc3: ep0: fix NULL pointer exception There is no validation of the index from dwc3_wIndex_to_dep() and we might be referring a non-existing ep and trigger a NULL pointer exception. In certain configurations we might use fewer eps and the index might wrongly indicate a larger ep index than existing. By adding this validation from the patch we can actually report a wrong index back to the caller. In our usecase we are using a composite device on an older kernel, but upstream might use this fix also. Unfortunately, I cannot describe the hardware for others to reproduce the issue as it is a proprietary implementation. [ 82.958261] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000a4 [ 82.966891] Mem abort info: [ 82.969663] ESR = 0x96000006 [ 82.972703] Exception class = DABT (current EL), IL = 32 bits [ 82.978603] SET = 0, FnV = 0 [ 82.981642] EA = 0, S1PTW = 0 [ 82.984765] Data abort info: [ 82.987631] ISV = 0, ISS = 0x00000006 [ 82.991449] CM = 0, WnR = 0 [ 82.994409] user pgtable: 4k pages, 39-bit VAs, pgdp = 00000000c6210ccc [ 83.000999] [00000000000000a4] pgd=0000000053aa5003, pud=0000000053aa5003, pmd=0000000000000000 [ 83.009685] Internal error: Oops: 96000006 [#1] PREEMPT SMP [ 83.026433] Process irq/62-dwc3 (pid: 303, stack limit = 0x000000003985154c) [ 83.033470] CPU: 0 PID: 303 Comm: irq/62-dwc3 Not tainted 4.19.124 #1 [ 83.044836] pstate: 60000085 (nZCv daIf -PAN -UAO) [ 83.049628] pc : dwc3_ep0_handle_feature+0x414/0x43c [ 83.054558] lr : dwc3_ep0_interrupt+0x3b4/0xc94 ... [ 83.141788] Call trace: [ 83.144227] dwc3_ep0_handle_feature+0x414/0x43c [ 83.148823] dwc3_ep0_interrupt+0x3b4/0xc94 [ 83.181546] ---[ end trace aac6b5267d84c32f ]---

The SUSE Linux Enterprise 12 SP5 Azure kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2024-26921: Preserve kabi for sk_buff (bsc#1223138).
• CVE-2022-48686: Fix UAF when detecting digest errors (bsc#1223948). Update blacklist.conf: remove entry
• CVE-2021-47074: Fixed memory leak in nvme_loop_create_ctrl() (bsc#1220854).
• CVE-2021-47378: Destroy cm id before destroy qp to avoid use after free (bsc#1225201).
• CVE-2022-48697: Fix a use-after-free (bsc#1223922). Update blacklist.conf: drop entry from it
• CVE-2024-26846: Do not wait in vain when unloading module (bsc#1223023).
• CVE-2021-47496: Fix flipped sign in tls_err_abort() calls (bsc#1225354)
• CVE-2023-42755: Check user supplied offsets (bsc#1215702).
• CVE-2023-52664: Eliminate double free in error handling logic (bsc#1224747).
• CVE-2023-52796: Add ipvlan_route_v6_outbound() helper (bsc#1224930).
• CVE-2021-47246: Fix page reclaim for dead peer hairpin (bsc#1224831).
• CVE-2023-52732: Blocklist the kclient when receiving corrupted snap trace (bsc#1225222 CVE-2023-52732).
• CVE-2024-35936: Add missing mutex_unlock in btrfs_relocate_sys_chunks() (bsc#1224644)
• CVE-2021-47548: Fixed a possible array out-of=bounds (bsc#1225506)
• CVE-2024-36029: Pervent access to suspended controller (bsc#1225708 CVE-2024-36029)
• CVE-2024-26625: Call sock_orphan() at release time (bsc#1221086)
• CVE-2021-47352: Add validation for used length (bsc#1225124).
• CVE-2023-52698: Fixed memory leak in netlbl_calipso_add_pass() (bsc#1224621)
• CVE-2021-47431: Fix gart.bo pin_count leak (bsc#1225390).
• CVE-2024-35935: Handle path ref underflow in header iterate_inode_ref() (bsc#1224645)
• CVE-2024-26828: Fixed underflow in parse_server_interfaces() (bsc#1223084).
• CVE-2021-47423: Fix file release memory leak (bsc#1225366).
• CVE-2022-48710: Fix a possible null pointer dereference (bsc#1225230).
• CVE-2021-47497: Fixed shift-out-of-bound (UBSAN) with byte size cells (bsc#1225355).
• CVE-2024-35932: Do not check if plane->state->fb == state->fb (bsc#1224650).
• CVE-2021-47500: Fixed trigger reference couting (bsc#1225360).
• CVE-2024-35809: Drain runtime-idle callbacks before driver removal (bsc#1224738).
• CVE-2021-47383: Fiedx out-of-bound vmalloc access in imageblit (bsc#1225208).
• CVE-2021-47511: Fixed negative period/buffer sizes (bsc#1225411).
• CVE-2021-47509: Limit the period size to 16MB (bsc#1225409).
• CVE-2024-35877: Fixed VM_PAT handling in COW mappings (bsc#1224525).
• CVE-2024-35982: Avoid infinite loop trying to resize local TT (bsc#1224566)
• CVE-2024-35969: Fixed race condition between ipv6_get_ifaddr and ipv6_del_addr (bsc#1224580).
• CVE-2021-47277: Avoid speculation-based attacks from out-of-range memslot accesses (bsc#1224960, CVE-2021-47277).
• CVE-2024-35791: Flush pages under kvm->lock to fix UAF in svm_register_enc_region() (bsc#1224725).
• CVE-2021-47401: Fix stack information leak (bsc#1225242).
• CVE-2023-52867: Fix possible buffer overflow (bsc#1225009).
• CVE-2023-52821: Fix a possible null pointer dereference (bsc#1225022).
• CVE-2021-47265: Verify port when creating flow rule (bsc#1224957)
• CVE-2021-47362: Update intermediate power state for SI (bsc#1225153).
• CVE-2021-47361: Fix error handling in mcb_alloc_bus() (bsc#1225151).
• CVE-2023-52864: Fix opening of char device (bsc#1225132).
• CVE-2022-48708: Fix potential NULL dereference (bsc#1224942).
• CVE-2024-35944: Fixed memcpy() run-time warning in dg_dispatch_as_host() (bsc#1224648).
• CVE-2021-47238: Fix memory leak in ip_mc_add1_src (bsc#1224847)
• CVE-2023-52730: Fix possible resource leaks in some error paths (bsc#1224956).
• CVE-2021-47355: Fix possible use-after-free in nicstar_cleanup() (bsc#1225141).
• CVE-2021-47245: Fix out of bounds when parsing TCP options (bsc#1224838)
• CVE-2024-35878: Prevent NULL pointer dereference in vsnprintf() (bsc#1224671).
• CVE-2023-52747: Restore allocated resources on failed copyout (bsc#1224931) -…

The SUSE Linux Enterprise 12 SP5 RT kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2024-26921: Preserve kabi for sk_buff (bsc#1223138).
• CVE-2022-48686: Fix UAF when detecting digest errors (bsc#1223948).
• CVE-2021-47074: Fixed memory leak in nvme_loop_create_ctrl() (bsc#1220854).
• CVE-2021-47378: Destroy cm id before destroy qp to avoid use after free (bsc#1225201).
• CVE-2022-48697: Fix a use-after-free (bsc#1223922).
• CVE-2024-26846: Do not wait in vain when unloading module (bsc#1223023).
• CVE-2021-47496: Fix flipped sign in tls_err_abort() calls (bsc#1225354)
• CVE-2023-42755: Check user supplied offsets (bsc#1215702).
• CVE-2023-52664: Eliminate double free in error handling logic (bsc#1224747).
• CVE-2023-52796: Add ipvlan_route_v6_outbound() helper (bsc#1224930).
• CVE-2021-47246: Fix page reclaim for dead peer hairpin (bsc#1224831).
• CVE-2023-52732: Blocklist the kclient when receiving corrupted snap trace (bsc#1225222).
• CVE-2024-35936: Add missing mutex_unlock in btrfs_relocate_sys_chunks() (bsc#1224644)
• CVE-2021-47548: Fixed a possible array out-of-bounds (bsc#1225506)
• CVE-2024-36029: Pervent access to suspended controller (bsc#1225708)
• CVE-2024-26625: Call sock_orphan() at release time (bsc#1221086)
• CVE-2021-47352: Add validation for used length (bsc#1225124).
• CVE-2023-52698: Fixed memory leak in netlbl_calipso_add_pass() (bsc#1224621)
• CVE-2021-47431: Fix gart.bo pin_count leak (bsc#1225390).
• CVE-2024-35935: Handle path ref underflow in header iterate_inode_ref() (bsc#1224645)
• CVE-2024-26828: Fixed underflow in parse_server_interfaces() (bsc#1223084).
• CVE-2021-47423: Fix file release memory leak (bsc#1225366).
• CVE-2022-48710: Fix a possible null pointer dereference (bsc#1225230).
• CVE-2021-47497: Fixed shift-out-of-bound (UBSAN) with byte size cells (bsc#1225355).
• CVE-2024-35932: Do not check if plane->state->fb == state->fb (bsc#1224650).
• CVE-2021-47500: Fixed trigger reference couting (bsc#1225360).
• CVE-2024-35809: Drain runtime-idle callbacks before driver removal (bsc#1224738).
• CVE-2021-47383: Fiedx out-of-bound vmalloc access in imageblit (bsc#1225208).
• CVE-2021-47511: Fixed negative period/buffer sizes (bsc#1225411).
• CVE-2021-47509: Limit the period size to 16MB (bsc#1225409).
• CVE-2024-35877: Fixed VM_PAT handling in COW mappings (bsc#1224525).
• CVE-2024-35982: Avoid infinite loop trying to resize local TT (bsc#1224566)
• CVE-2024-35969: Fixed race condition between ipv6_get_ifaddr and ipv6_del_addr (bsc#1224580).
• CVE-2021-47277: Avoid speculation-based attacks from out-of-range memslot accesses (bsc#1224960).
• CVE-2024-35791: Flush pages under kvm->lock to fix UAF in svm_register_enc_region() (bsc#1224725).
• CVE-2021-47401: Fix stack information leak (bsc#1225242).
• CVE-2023-52867: Fix possible buffer overflow (bsc#1225009).
• CVE-2023-52821: Fix a possible null pointer dereference (bsc#1225022).
• CVE-2021-47265: Verify port when creating flow rule (bsc#1224957)
• CVE-2021-47362: Update intermediate power state for SI (bsc#1225153).
• CVE-2021-47361: Fix error handling in mcb_alloc_bus() (bsc#1225151).
• CVE-2023-52864: Fix opening of char device (bsc#1225132).
• CVE-2022-48708: Fix potential NULL dereference (bsc#1224942).
• CVE-2024-35944: Fixed memcpy() run-time warning in dg_dispatch_as_host() (bsc#1224648).
• CVE-2021-47238: Fix memory leak in ip_mc_add1_src (bsc#1224847)
• CVE-2023-52730: Fix possible resource leaks in some error paths (bsc#1224956).
• CVE-2021-47355: Fix possible use-after-free in nicstar_cleanup() (bsc#1225141).
• CVE-2021-47245: Fix out of bounds when parsing TCP options (bsc#1224838)
• CVE-2024-35878: Prevent NULL pointer dereference in vsnprintf() (bsc#1224671).
• CVE-2023-52747: Restore allocated resources on failed copyout (bsc#1224931)
• CVE-2021-47249: Fix memory leak in rds_recvmsg (bsc#1224880)
• CVE-2021-47397: Break out if skb_header_pointer returns NULL in…

The SUSE Linux Enterprise 15 SP3 RT kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2024-26921: Preserve kabi for sk_buff (bsc#1223138).
• CVE-2021-47378: Destroy cm id before destroy qp to avoid use after free (bsc#1225201).
• CVE-2021-47496: Fix flipped sign in tls_err_abort() calls (bsc#1225354)
• CVE-2021-47402: Protect fl_walk() with rcu (bsc#1225301)
• CVE-2022-48673: kABI workarounds for struct smc_link (bsc#1223934).
• CVE-2023-52871: Handle a second device without data corruption (bsc#1225534)
• CVE-2024-26828: Fixed underflow in parse_server_interfaces() (bsc#1223084).
• CVE-2021-47497: Fixed shift-out-of-bound (UBSAN) with byte size cells (bsc#1225355).
• CVE-2021-47500: Fixed trigger reference couting (bsc#1225360).
• CVE-2024-27413: Fixed incorrect allocation size (bsc#1224438).
• CVE-2021-47383: Fiedx out-of-bound vmalloc access in imageblit (bsc#1225208).
• CVE-2021-47511: Fixed negative period/buffer sizes (bsc#1225411).
• CVE-2023-52840: Fix use after free in rmi_unregister_function() (bsc#1224928).
• CVE-2021-47261: Fix initializing CQ fragments buffer (bsc#1224954)
• CVE-2021-47254: Fix use-after-free in gfs2_glock_shrink_scan (bsc#1224888).
• CVE-2024-27398: Fixed use-after-free bugs caused by sco_sock_timeout (bsc#1224174).
• CVE-2024-26929: Fixed double free of fcport (bsc#1223715).
• CVE-2024-26930: Fixed double free of the ha->vp_map pointer (bsc#1223626).
• CVE-2023-52655: Check packet for fixup for true limit (bsc#1217169).
• CVE-2023-4244: Fixed a use-after-free in the nf_tables component, which could be exploited to achieve local privilege escalation (bsc#1215420).
• CVE-2023-1829: Fixed a use-after-free vulnerability in the control index filter (tcindex) (bsc#1210335).
• CVE-2023-52686: Fix a null pointer in opal_event_init() (bsc#1065729).

The following non-security bugs were fixed:

• af_unix: annote lockless accesses to unix_tot_inflight & gc_in_progress (bsc#1223384).
• af_unix: Do not use atomic ops for unix_sk(sk)->inflight (bsc#1223384).
• af_unix: Replace BUG_ON() with WARN_ON_ONCE() (bsc#1223384).
• btrfs: do not start relocation until in progress drops are done (bsc#1222251).
• btrfs: do not start relocation until in progress drops are done (bsc#1222251).
• cifs: add missing spinlock around tcon refcount (bsc#1213476).
• cifs: avoid dup prefix path in dfs_get_automount_devname() (bsc#1213476).
• cifs: avoid race conditions with parallel reconnects (bsc#1213476).
• cifs: avoid re-lookups in dfs_cache_find() (bsc#1213476).
• cifs: avoid use of global locks for high contention data (bsc#1213476).
• cifs: check only tcon status on tcon related functions (bsc#1213476).
• cifs: do all necessary checks for credits within or before locking (bsc#1213476).
• cifs: do not block in dfs_cache_noreq_update_tgthint() (bsc#1213476).
• cifs: do not refresh cached referrals from unactive mounts (bsc#1213476).
• cifs: do not take exclusive lock for updating target hints (bsc#1213476).
• cifs: fix confusing debug message (bsc#1213476).
• cifs: fix missing unload_nls() in smb2_reconnect() (bsc#1213476).
• cifs: fix potential deadlock in cache_refresh_path() (bsc#1213476).
• cifs: fix refresh of cached referrals (bsc#1213476).
• cifs: fix return of uninitialized rc in dfs_cache_update_tgthint() (bsc#1213476).
• cifs: fix source pathname comparison of dfs supers (bsc#1213476).
• cifs: fix status checks in cifs_tree_connect (bsc#1213476).
• cifs: fix use-after-free bug in refresh_cache_worker() (bsc#1213476).
• cifs: get rid of dns resolve worker (bsc#1213476).
• cifs: get rid of mount options string parsing (bsc#1213476).
• cifs: handle cache lookup errors different than -ENOENT (bsc#1213476).
• cifs: ignore ipc reconnect failures during dfs failover (bsc#1213476).
• cifs: match even the scope id for ipv6 addresses (bsc#1213476).
• cifs: optimize reconnect of nested links (bsc#1213476).
• cifs: prevent data race in smb2_reconnect() (bsc#1213476). -…

The SUSE Linux Enterprise 15 SP2 kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2021-47497: Fixed shift-out-of-bound (UBSAN) with byte size cells (bsc#1225355).
• CVE-2021-47500: Fixed trigger reference couting (bsc#1225360).
• CVE-2021-47383: Fiedx out-of-bound vmalloc access in imageblit (bsc#1225208).
• CVE-2021-47511: Fixed negative period/buffer sizes (bsc#1225411).
• CVE-2024-27398: Fixed use-after-free bugs caused by sco_sock_timeout (bsc#1224174).
• CVE-2023-4244: Fixed a use-after-free in the nf_tables component, which could be exploited to achieve local privilege escalation (bsc#1215420).
• CVE-2023-4244: Fixed a use-after-free in the nf_tables component, which could be exploited to achieve local privilege escalation (bsc#1215420).
• CVE-2023-1829: Fixed a use-after-free vulnerability in the control index filter (tcindex) (bsc#1210335).
• CVE-2021-47378: Destroy cm id before destroy qp to avoid use after free (bsc#1225201).
• CVE-2021-47496: Fix flipped sign in tls_err_abort() calls (bsc#1225354)
• CVE-2021-47402: Protect fl_walk() with rcu (bsc#1225301)
• CVE-2022-48673: kABI workarounds for struct smc_link (bsc#1223934).
• CVE-2023-52871: Handle a second device without data corruption (bsc#1225534)
• CVE-2024-26828: Fix underflow in parse_server_interfaces() (bsc#1223084).
• CVE-2024-27413: Fix incorrect allocation size (bsc#1224438).
• CVE-2023-52840: Fix use after free in rmi_unregister_function() (bsc#1224928).
• CVE-2021-47261: Fix initializing CQ fragments buffer (bsc#1224954)
• CVE-2021-47254: Fix use-after-free in gfs2_glock_shrink_scan (bsc#1224888).
• CVE-2023-52655: Check packet for fixup for true limit (bsc#1217169).
• CVE-2023-52686: Fix a null pointer in opal_event_init() (bsc#1065729).

The following non-security bugs were fixed:

• NFC: nxp: add NXP1002 (bsc#1185589).
• PCI: rpaphp: Add MODULE_DESCRIPTION (bsc#1176869 ltc#188243).
• af_unix: Do not use atomic ops for unix_sk(sk)->inflight (bsc#1223384).
• af_unix: Replace BUG_ON() with WARN_ON_ONCE() (bsc#1223384).
• af_unix: annote lockless accesses to unix_tot_inflight & gc_in_progress (bsc#1223384).
• btrfs: do not start relocation until in progress drops are done (bsc#1222251).
• md: Replace snprintf with scnprintf (git-fixes).
• netfilter: nf_tables: GC transaction race with abort path (git-fixes).
• netfilter: nf_tables: GC transaction race with netns dismantle (git-fixes).
• netfilter: nf_tables: defer gc run if previous batch is still pending (git-fixes).
• netfilter: nf_tables: fix GC transaction races with netns and netlink event exit path (git-fixes).
• netfilter: nf_tables: fix kdoc warnings after gc rework (git-fixes).
• netfilter: nf_tables: fix memleak when more than 255 elements expired (git-fixes).
• netfilter: nf_tables: mark newset as dead on transaction abort (git-fixes).
• netfilter: nf_tables: mark set as dead when unbinding anonymous set with timeout (git-fixes).
• netfilter: nf_tables: nft_set_rbtree: fix spurious insertion failure (git-fixes).
• netfilter: nf_tables: release mutex after nft_gc_seq_end from abort path (git-fixes).
• netfilter: nf_tables: skip dead set elements in netlink dump (git-fixes).
• netfilter: nf_tables: use correct lock to protect gc_list (git-fixes).
• netfilter: nft_set_hash: try later when GC hits EAGAIN on iteration (git-fixes).
• netfilter: nft_set_rbtree: Add missing expired checks (git-fixes).
• netfilter: nft_set_rbtree: Detect partial overlap with start endpoint match (git-fixes).
• netfilter: nft_set_rbtree: Detect partial overlaps on insertion (git-fixes).
• netfilter: nft_set_rbtree: Do not account for expired elements on insertion (git-fixes).
• netfilter: nft_set_rbtree: Drop spurious condition for overlap detection on insertion (git-fixes).
• netfilter: nft_set_rbtree: Handle outcomes of tree rotations in overlap detection (git-fixes).
• netfilter: nft_set_rbtree: Introduce and use nft_rbtree_interval_start() (git-fixes). -…

The SUSE Linux Enterprise 12 SP5 kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2021-46933: Fixed possible underflow in ffs_data_clear() (bsc#1220487).
• CVE-2021-46955: Fixed an out-of-bounds read with openvswitch, when fragmenting IPv4 packets (bsc#1220513).
• CVE-2021-47074: Fixed memory leak in nvme_loop_create_ctrl() (bsc#1220854).
• CVE-2021-47113: Abort btrfs rename_exchange if we fail to insert the second ref (bsc#1221543).
• CVE-2021-47131: Fixed a use-after-free after the TLS device goes down and up (bsc#1221545).
• CVE-2021-47206: Check return value after calling platform_get_resource() (bsc#1222894).
• CVE-2021-47238: Fixed memory leak in ip_mc_add1_src (bsc#1224847)
• CVE-2021-47245: Fixed out of bounds when parsing TCP options (bsc#1224838)
• CVE-2021-47246: Fixed page reclaim for dead peer hairpin (CVE-2021-47246 bsc#1224831).
• CVE-2021-47249: Fixed memory leak in rds_recvmsg (bsc#1224880)
• CVE-2021-47250: Fixed memory leak in netlbl_cipsov4_add_std (bsc#1224827)
• CVE-2021-47265: Verify port when creating flow rule (bsc#1224957)
• CVE-2021-47277: Avoid speculation-based attacks from out-of-range memslot accesses (bsc#1224960).
• CVE-2021-47281: Fixed race of snd_seq_timer_open() (bsc#1224983).
• CVE-2021-47334: Fixed two use after free in ibmasm_init_one (bsc#1225112).
• CVE-2021-47352: Add validation for used length (bsc#1225124).
• CVE-2021-47355: Fixed possible use-after-free in nicstar_cleanup() (bsc#1225141).
• CVE-2021-47357: Fixed possible use-after-free in ia_module_exit() (bsc#1225144).
• CVE-2021-47361: Fixed error handling in mcb_alloc_bus() (bsc#1225151).
• CVE-2021-47362: Update intermediate power state for SI (bsc#1225153).
• CVE-2021-47378: Destroy cm id before destroy qp to avoid use after free (bsc#1225201).
• CVE-2021-47383: Fixed out-of-bound vmalloc access in imageblit (bsc#1225208).
• CVE-2021-47397: Break out if skb_header_pointer returns NULL in sctp_rcv_ootb (bsc#1225082)
• CVE-2021-47401: Fixed stack information leak (bsc#1225242).
• CVE-2021-47423: Fixed file release memory leak (bsc#1225366).
• CVE-2021-47431: Fixed gart.bo pin_count leak (bsc#1225390).
• CVE-2021-47469: Add SPI fix commit to be ignored (bsc#1225347)
• CVE-2021-47483: Fixed possible double-free in regcache_rbtree_exit() (bsc#1224907).
• CVE-2021-47496: Fix flipped sign in tls_err_abort() calls (bsc#1225354)
• CVE-2021-47497: Fixed shift-out-of-bound (UBSAN) with byte size cells (bsc#1225355).
• CVE-2021-47500: Fixed trigger reference couting (bsc#1225360).
• CVE-2021-47509: Limit the period size to 16MB (bsc#1225409).
• CVE-2021-47511: Fixed negative period/buffer sizes (bsc#1225411).
• CVE-2021-47548: Fixed a possible array out-of=bounds (bsc#1225506)
• CVE-2022-48672: Fixed off-by-one error in unflatten_dt_nodes() (CVE-2022-48672 bsc#1223931).
• CVE-2022-48686: Fixed UAF when detecting digest errors (bsc#1223948).
• CVE-2022-48697: Fixed a use-after-free (bsc#1223922).
• CVE-2022-48702: Fixed out of bounds access in snd_emu10k1_pcm_channel_alloc() (bsc#1223923).
• CVE-2022-48704: Add a force flush to delay work when radeon (bsc#1223932)
• CVE-2022-48708: Fixed potential NULL dereference (bsc#1224942).
• CVE-2022-48710: Fixed a possible null pointer dereference (bsc#1225230).
• CVE-2023-1829: Fixed a use-after-free vulnerability in the control index filter (tcindex) (bsc#1210335).
• CVE-2023-42755: Check user supplied offsets (bsc#1215702).
• CVE-2023-52586: Fixed mutex lock in control vblank irq (bsc#1221081).
• CVE-2023-52655: Check packet for fixup for true limit (bsc#1217169).
• CVE-2023-52664: Eliminate double free in error handling logic (bsc#1224747).
• CVE-2023-52691: Fixed a double-free in si_dpm_init (bsc#1224607).
• CVE-2023-52698: Fixed memory leak in netlbl_calipso_add_pass() (bsc#1224621)
• CVE-2023-52730: Fixed possible resource leaks in some error paths (bsc#1224956).
• CVE-2023-52732: Blocklist the kclient when…

The SUSE Linux Enterprise 15 SP3 kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2021-47378: Destroy cm id before destroy qp to avoid use after free (bsc#1225201).
• CVE-2021-47496: Fix flipped sign in tls_err_abort() calls (bsc#1225354)
• CVE-2021-47402: Protect fl_walk() with rcu (bsc#1225301)
• CVE-2022-48673: kABI workarounds for struct smc_link (bsc#1223934).
• CVE-2023-52871: Handle a second device without data corruption (bsc#1225534)
• CVE-2024-26828: Fix underflow in parse_server_interfaces() (bsc#1223084).
• CVE-2021-47497: Fixed shift-out-of-bound (UBSAN) with byte size cells (bsc#1225355).
• CVE-2021-47500: Fixed trigger reference couting (bsc#1225360).
• CVE-2024-27413: Fix incorrect allocation size (bsc#1224438).
• CVE-2021-47383: Fiedx out-of-bound vmalloc access in imageblit (bsc#1225208).
• CVE-2021-47511: Fixed negative period/buffer sizes (bsc#1225411).
• CVE-2023-52840: Fix use after free in rmi_unregister_function() (bsc#1224928).
• CVE-2021-47261: Fix initializing CQ fragments buffer (bsc#1224954)
• CVE-2021-47254: Fix use-after-free in gfs2_glock_shrink_scan (bsc#1224888).
• CVE-2024-27398: Fixed use-after-free bugs caused by sco_sock_timeout (bsc#1224174).
• CVE-2024-26921: Preserve kabi for sk_buff (bsc#1223138).
• CVE-2023-52655: Check packet for fixup for true limit (bsc#1217169).
• CVE-2023-4244: Fixed a use-after-free in the nf_tables component, which could be exploited to achieve local privilege escalation (bsc#1215420).
• CVE-2023-4244: Fixed a use-after-free in the nf_tables component, which could be exploited to achieve local privilege escalation (bsc#1215420).
• CVE-2023-1829: Fixed a use-after-free vulnerability in the control index filter (tcindex) (bsc#1210335).
• CVE-2023-52686: Fix a null pointer in opal_event_init() (bsc#1065729).

The following non-security bugs were fixed:

• af_unix: annote lockless accesses to unix_tot_inflight & gc_in_progress (bsc#1223384).
• af_unix: Do not use atomic ops for unix_sk(sk)->inflight (bsc#1223384).
• af_unix: Replace BUG_ON() with WARN_ON_ONCE() (bsc#1223384).
• btrfs: do not start relocation until in progress drops are done (bsc#1222251).
• btrfs: do not start relocation until in progress drops are done (bsc#1222251).
• cifs: add missing spinlock around tcon refcount (bsc#1213476).
• cifs: avoid dup prefix path in dfs_get_automount_devname() (bsc#1213476).
• cifs: avoid race conditions with parallel reconnects (bsc#1213476).
• cifs: avoid re-lookups in dfs_cache_find() (bsc#1213476).
• cifs: avoid use of global locks for high contention data (bsc#1213476).
• cifs: check only tcon status on tcon related functions (bsc#1213476).
• cifs: do all necessary checks for credits within or before locking (bsc#1213476).
• cifs: do not block in dfs_cache_noreq_update_tgthint() (bsc#1213476).
• cifs: do not refresh cached referrals from unactive mounts (bsc#1213476).
• cifs: do not take exclusive lock for updating target hints (bsc#1213476).
• cifs: fix confusing debug message (bsc#1213476).
• cifs: fix missing unload_nls() in smb2_reconnect() (bsc#1213476).
• cifs: fix potential deadlock in cache_refresh_path() (bsc#1213476).
• cifs: fix refresh of cached referrals (bsc#1213476).
• cifs: fix return of uninitialized rc in dfs_cache_update_tgthint() (bsc#1213476).
• cifs: fix source pathname comparison of dfs supers (bsc#1213476).
• cifs: fix status checks in cifs_tree_connect (bsc#1213476).
• cifs: fix use-after-free bug in refresh_cache_worker() (bsc#1213476).
• cifs: get rid of dns resolve worker (bsc#1213476).
• cifs: get rid of mount options string parsing (bsc#1213476).
• cifs: handle cache lookup errors different than -ENOENT (bsc#1213476).
• cifs: ignore ipc reconnect failures during dfs failover (bsc#1213476).
• cifs: match even the scope id for ipv6 addresses (bsc#1213476).
• cifs: optimize reconnect of nested links (bsc#1213476).
• cifs: prevent data race in smb2_reconnect() (bsc#1213476). -…

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems:

• Cryptographic API;
• ACPI drivers;
• Hardware monitoring drivers;
• InfiniBand drivers;
• MTD block device drivers;
• Network drivers;
• DesignWare USB3 driver;
• Ceph distributed file system;
• Network file system (NFS) server daemon;
• NILFS2 file system;
• File systems infrastructure;
• Tracing infrastructure;
• Appletalk network protocol;
• IPv6 networking;
• Netfilter; (CVE-2021-47146, CVE-2021-47269, CVE-2021-47385, CVE-2021-47634, CVE-2022-49026, CVE-2024-49935, CVE-2024-50067, CVE-2024-50095, CVE-2024-50179, CVE-2024-53112, CVE-2024-53217, CVE-2025-21715, CVE-2025-21722, CVE-2025-21811, CVE-2025-21855, CVE-2025-38666, CVE-2025-39964, CVE-2025-40018)

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems:

• Cryptographic API;
• ACPI drivers;
• Hardware monitoring drivers;
• InfiniBand drivers;
• MTD block device drivers;
• Network drivers;
• DesignWare USB3 driver;
• Ceph distributed file system;
• Network file system (NFS) server daemon;
• NILFS2 file system;
• File systems infrastructure;
• Tracing infrastructure;
• Appletalk network protocol;
• IPv6 networking;
• Netfilter; (CVE-2021-47146, CVE-2021-47269, CVE-2021-47385, CVE-2021-47634, CVE-2022-49026, CVE-2024-49935, CVE-2024-50067, CVE-2024-50095, CVE-2024-50179, CVE-2024-53112, CVE-2024-53217, CVE-2025-21715, CVE-2025-21722, CVE-2025-21811, CVE-2025-21855, CVE-2025-38666, CVE-2025-39964, CVE-2025-40018)