CVE-2021-47633

The Linux Kernel, the operating system core itself.

Security Fix(es):

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

ath5k: fix OOB in ath5k_eeprom_read_pcal_info_5111

The bug was found during fuzzing. Stacktrace locates it in ath5k_eeprom_convert_pcal_info_5111. When none of the curve is selected in the loop, idx can go up to AR5K_EEPROM_N_PD_CURVES. The line makes pd out of bound. pd = &chinfo[pier].pd_curves[idx];

There are many OOB writes using pd later in the code. So I added a sanity check for idx. Checks for other loops involving AR5K_EEPROM_N_PD_CURVES are not needed as the loop index is not used outside the loops.

The patch is NOT tested with real device.

The following is the fuzzing report

BUG: KASAN: slab-out-of-bounds in ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k] Write of size 1 at addr ffff8880174a4d60 by task modprobe/214

CPU: 0 PID: 214 Comm: modprobe Not tainted 5.6.0 #1 Call Trace: dump_stack+0x76/0xa0 print_address_description.constprop.0+0x16/0x200 ? ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k] ? ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k] __kasan_report.cold+0x37/0x7c ? ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k] kasan_report+0xe/0x20 ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k] ? apic_timer_interrupt+0xa/0x20 ? ath5k_eeprom_init_11a_pcal_freq+0xbc0/0xbc0 [ath5k] ? ath5k_pci_eeprom_read+0x228/0x3c0 [ath5k] ath5k_eeprom_init+0x2513/0x6290 [ath5k] ? ath5k_eeprom_init_11a_pcal_freq+0xbc0/0xbc0 [ath5k] ? usleep_range+0xb8/0x100 ? apic_timer_interrupt+0xa/0x20 ? ath5k_eeprom_read_pcal_info_2413+0x2f20/0x2f20 [ath5k] ath5k_hw_init+0xb60/0x1970 [ath5k] ath5k_init_ah+0x6fe/0x2530 [ath5k] ? kasprintf+0xa6/0xe0 ? ath5k_stop+0x140/0x140 [ath5k] ? _dev_notice+0xf6/0xf6 ? apic_timer_interrupt+0xa/0x20 ath5k_pci_probe.cold+0x29a/0x3d6 [ath5k] ? ath5k_pci_eeprom_read+0x3c0/0x3c0 [ath5k] ? mutex_lock+0x89/0xd0 ? ath5k_pci_eeprom_read+0x3c0/0x3c0 [ath5k] local_pci_probe+0xd3/0x160 pci_device_probe+0x23f/0x3e0 ? pci_device_remove+0x280/0x280 ? pci_device_remove+0x280/0x280 really_probe+0x209/0x5d0(CVE-2021-47633)

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

scsi: zorro7xx: Fix a resource leak in zorro7xx_remove_one()

The error handling path of the probe releases a resource that is not freed in the remove function. In some cases, a ioremap() must be undone.

Add the missing iounmap() call in the remove function.(CVE-2022-49095)

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

ath9k_htc: fix uninit value bugs

Syzbot reported 2 KMSAN bugs in ath9k. All of them are caused by missing field initialization.

In htc_connect_service() svc_meta_len and pad are not initialized. Based on code it looks like in current skb there is no service data, so simply initialize svc_meta_len to 0.

htc_issue_send() does not initialize htc_frame_hdr::control array. Based on firmware code, it will initialize it by itself, so simply zero whole array to make KMSAN happy

Fail logs:

BUG: KMSAN: kernel-usb-infoleak in usb_submit_urb+0x6c1/0x2aa0 drivers/usb/core/urb.c:430 usb_submit_urb+0x6c1/0x2aa0 drivers/usb/core/urb.c:430 hif_usb_send_regout drivers/net/wireless/ath/ath9k/hif_usb.c:127 [inline] hif_usb_send+0x5f0/0x16f0 drivers/net/wireless/ath/ath9k/hif_usb.c:479 htc_issue_send drivers/net/wireless/ath/ath9k/htc_hst.c:34 [inline] htc_connect_service+0x143e/0x1960 drivers/net/wireless/ath/ath9k/htc_hst.c:275 ...

Uninit was created at: slab_post_alloc_hook mm/slab.h:524 [inline] slab_alloc_node mm/slub.c:3251 [inline] __kmalloc_node_track_caller+0xe0c/0x1510 mm/slub.c:4974 kmalloc_reserve net/core/skbuff.c:354 [inline] __alloc_skb+0x545/0xf90 net/core/skbuff.c:426 alloc_skb include/linux/skbuff.h:1126 [inline] htc_connect_service+0x1029/0x1960 drivers/net/wireless/ath/ath9k/htc_hst.c:258 ...

Bytes 4-7 of 18 are uninitialized Memory access of size 18 starts at…

In the Linux kernel, the following vulnerability has been resolved: ath5k: fix OOB in ath5k_eeprom_read_pcal_info_5111 The bug was found during fuzzing. Stacktrace locates it in ath5k_eeprom_convert_pcal_info_5111. When none of the curve is selected in the loop, idx can go up to AR5K_EEPROM_N_PD_CURVES. The line makes pd out of bound. pd = &chinfo[pier].pd_curves[idx]; There are many OOB writes using pd later in the code. So I added a sanity check for idx. Checks for other loops involving AR5K_EEPROM_N_PD_CURVES are not needed as the loop index is not used outside the loops. The patch is NOT tested with real device. The following is the fuzzing report BUG: KASAN: slab-out-of-bounds in ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k] Write of size 1 at addr ffff8880174a4d60 by task modprobe/214 CPU: 0 PID: 214 Comm: modprobe Not tainted 5.6.0 #1 Call Trace: dump_stack+0x76/0xa0 print_address_description.constprop.0+0x16/0x200 ? ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k] ? ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k] __kasan_report.cold+0x37/0x7c ? ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k] kasan_report+0xe/0x20 ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k] ? apic_timer_interrupt+0xa/0x20 ? ath5k_eeprom_init_11a_pcal_freq+0xbc0/0xbc0 [ath5k] ? ath5k_pci_eeprom_read+0x228/0x3c0 [ath5k] ath5k_eeprom_init+0x2513/0x6290 [ath5k] ? ath5k_eeprom_init_11a_pcal_freq+0xbc0/0xbc0 [ath5k] ? usleep_range+0xb8/0x100 ? apic_timer_interrupt+0xa/0x20 ? ath5k_eeprom_read_pcal_info_2413+0x2f20/0x2f20 [ath5k] ath5k_hw_init+0xb60/0x1970 [ath5k] ath5k_init_ah+0x6fe/0x2530 [ath5k] ? kasprintf+0xa6/0xe0 ? ath5k_stop+0x140/0x140 [ath5k] ? _dev_notice+0xf6/0xf6 ? apic_timer_interrupt+0xa/0x20 ath5k_pci_probe.cold+0x29a/0x3d6 [ath5k] ? ath5k_pci_eeprom_read+0x3c0/0x3c0 [ath5k] ? mutex_lock+0x89/0xd0 ? ath5k_pci_eeprom_read+0x3c0/0x3c0 [ath5k] local_pci_probe+0xd3/0x160 pci_device_probe+0x23f/0x3e0 ? pci_device_remove+0x280/0x280 ? pci_device_remove+0x280/0x280 really_probe+0x209/0x5d0

• CVE-url: https://ubuntu.com/security/CVE-2024-41069
  • ASoC: topology: Fix references to freed memory
  • ASoC: topology: Do not assign fields that are already set
  • ASoC: topology: Clean up route loading
• Bionic update: upstream stable patchset 2021-06-11 (LP: #1931740) // CVE- url: https://ubuntu.com/security/CVE-2021-47149
  • net: fujitsu: fix potential null-ptr-deref
• CVE-url: https://ubuntu.com/security/CVE-2024-35849
  • btrfs: fix information leak in btrfs_ioctl_logical_to_ino()
• CVE-url: https://ubuntu.com/security/CVE-2025-38618
  • vsock: Do not allow binding to VMADDR_PORT_ANY
• CVE-url: https://ubuntu.com/security/CVE-2025-38617
  • net/packet: fix a race in packet_set_ring() and packet_notifier()
• CVE-url: https://ubuntu.com/security/CVE-2025-21796
  • nfsd: clear acl_access/acl_default after releasing them
• Bionic update: upstream stable patchset 2021-08-03 (LP: #1938824) // CVE- url: https://ubuntu.com/security/CVE-2021-47319
  • virtio-blk: Fix memory leak among suspend/resume procedure
• Focal update: v5.4.285 upstream stable release (LP: #2089233) // CVE-2024-49924 // CVE-url: https://ubuntu.com/security/CVE-2024-49924
  • fbdev: pxafb: Fix possible use after free in pxafb_task()
• CVE-url: https://ubuntu.com/security/CVE-2022-48827
  • NFSD: Fix the behavior of READ near OFFSET_MAX
• Bionic update: upstream stable patchset 2022-03-04 (LP: #1963717) // CVE- url: https://ubuntu.com/security/CVE-2022-48737
  • ASoC: ops: Reject out of bounds values in snd_soc_put_volsw()
  • ASoC: ops: Reject out of bounds values in snd_soc_put_volsw_sx()
• Focal update: v5.4.261 upstream stable release (LP: #2049049) // CVE-url: https://ubuntu.com/security/CVE-2023-52868
  • thermal: core: prevent potential string overflow
• Bionic update: upstream stable patchset 2022-05-17 (LP: #1973831) // CVE- url: https://ubuntu.com/security/CVE-2021-47633
  • ath5k: fix OOB in ath5k_eeprom_read_pcal_info_5111
• CVE-url: https://ubuntu.com/security/CVE-2021-47391
  • RDMA/cma: Ensure rdma_addr_cancel() happens before issuing more requests
• Bionic update: upstream stable patchset 2021-12-03 (LP: #1953202) // CVE- url: https://ubuntu.com/security/CVE-2021-47475
  • comedi: vmk80xx: fix transfer-buffer overflows
  • comedi: vmk80xx: fix bulk-buffer overflow
  • comedi: vmk80xx: fix bulk and interrupt message timeouts
• Bionic update: upstream stable patchset 2021-11-12 (LP: #1950816) // CVE- url: https://ubuntu.com/security/CVE-2021-47497
  • nvmem: Fix shift-out-of-bound (UBSAN) with byte size cells
• CVE-2024-35965 // CVE-url: https://ubuntu.com/security/CVE-2024-35965
  • Bluetooth: L2CAP: uninitialized variables in l2cap_sock_setsockopt()
  • Bluetooth: L2CAP: Fix not validating setsockopt user input
• CVE-url: https://ubuntu.com/security/CVE-2024-56616
  • drm/dp_mst: Fix MST sideband message body length check
• Bionic update: upstream stable patchset 2022-07-25 (LP: #1982782) // CVE- url: https://ubuntu.com/security/CVE-2022-49407
  • dlm: fix plock invalid read
• Focal update: v5.4.188 upstream stable release (LP: #1971496) // CVE-url: https://ubuntu.com/security/CVE-2022-49292
  • ALSA: oss: Fix PCM OSS buffer allocation overflow
• Focal update: v5.4.262 upstream stable release (LP: #2049069) // CVE-url: https://ubuntu.com/security/CVE-2023-52835
  • perf/core: Bail out early if the request AUX area is out of bound
• Focal update: v5.4.262 upstream stable release (LP: #2049069) // CVE-url: https://ubuntu.com/security/CVE-2023-52764
  • media: gspca: cpia1: shift-out-of-bounds in set_flicker
• CVE-2024-35966 // CVE-url: https://ubuntu.com/security/CVE-2024-35966
  • Bluetooth: RFCOMM: Fix not validating setsockopt user input
• CVE-2024-35967 // CVE-url: https://ubuntu.com/security/CVE-2024-35966
  • Bluetooth:…

• nfs: fix UAF in direct writes {CVE-2024-26958}
• NFSD: Fix the behavior of READ near OFFSET_MAX {CVE-2022-48827}
• thermal: core: prevent potential string overflow {CVE-2023-52868}
• ath5k: fix OOB in ath5k_eeprom_read_pcal_info_5111 {CVE-2021-47633}
• RDMA/cma: Ensure rdma_addr_cancel() happens before issuing more requests {CVE-2021-47391}
• drm/dp_mst: Fix MST sideband message body length check {CVE-2024-56616}
• Squashfs: check the inode number is not the invalid value of zero {CVE-2024-26982}
• wifi: mac80211: fix potential key use-after-free {CVE-2023-52530}
• crypto: qat - resolve race condition during AER recovery {CVE-2024-26974}
• netfilter: validate user input for expected length {CVE-2024-35896}
• wifi: cfg80211: check A-MSDU format more carefully {CVE-2024-35937}
• net: bridge: xmit: make sure we have at least eth header len bytes {CVE-2024-38538}
• bonding: Fix out-of-bounds read in bond_option_arp_ip_targets_set() {CVE-2024-39487}
• SUNRPC: Fix UAF in svc_tcp_listen_data_ready() {CVE-2023-52885}
• tty: Fix out-of-bound vmalloc access in imageblit {CVE-2021-47383}
• watchdog: Fix possible use-after-free by calling del_timer_sync() {CVE-2021-47321}
• virtio-net: Add validation for used length {CVE-2021-47352}
• USB: core: Fix hang in usb_kill_urb by adding memory barriers {CVE-2022-48760}
• scsi: mpt3sas: Avoid test/set_bit() operating in non-allocated memory {CVE-2024-40901}
• xfs: add bounds checking to xlog_recover_process_data {CVE-2024-41014}
• scsi: mpt3sas: Fix use-after-free warning {CVE-2022-48695}
• jffs2: prevent xattr node from overflowing the eraseblock {CVE-2024-38599}
• ecryptfs: Fix buffer size for tag 66 packet {CVE-2024-38578}
• dlm: fix plock invalid read {CVE-2022-49407}
• media: gspca: cpia1: shift-out-of-bounds in set_flicker {CVE-2023-52764}
• igb: Fix potential invalid memory access in igb_init_module() {CVE-2024-52332}
• jfs: fix shift-out-of-bounds in dbSplit {CVE-2024-56597}
• wifi: ath9k: Fix potential array-index-out-of-bounds read in ath9k_htc_txstatus() {CVE-2023-52594}
• pid: take a reference when initializing cad_pid {CVE-2021-47118}
• Bluetooth: af_bluetooth: Fix Use-After-Free in bt_sock_recvmsg {CVE-2023-51779}
• sched/rt: pick_next_rt_entity(): check list_entry {CVE-2023-1077}
• media: dm1105: Fix use after free bug in dm1105_remove due to race condition {CVE-2023-35824}
• xen/grant-table: add gnttab_try_end_foreign_access() {CVE-2022-23038}
• media: dvb-core: Fix use-after-free due to race at dvb_register_device() {CVE-2022-45884}
• media: dvb-core: Fix use-after-free due on race condition at dvb_net {CVE-2022-45886}
• media: dvb-core: Fix use-after-free on race condition at dvb_frontend {CVE-2022-45885}
• media: dvb-core: Fix use-after-free due to race condition at dvb_ca_en50221 {CVE-2022-45919}
• x86/elf: Disable automatic READ_IMPLIES_EXEC on 64-bit {CVE-2022-25265}
• x86/elf: Split READ_IMPLIES_EXEC from executable PT_GNU_STACK {CVE-2022-25265}
• x86/elf: Add table to document READ_IMPLIES_EXEC {CVE-2022-25265}
• i2c: i801: Don't generate an interrupt on bus reset {CVE-2021-47153}

• nfs: fix UAF in direct writes {CVE-2024-26958}
• NFSD: Fix the behavior of READ near OFFSET_MAX {CVE-2022-48827}
• thermal: core: prevent potential string overflow {CVE-2023-52868}
• ath5k: fix OOB in ath5k_eeprom_read_pcal_info_5111 {CVE-2021-47633}
• RDMA/cma: Ensure rdma_addr_cancel() happens before issuing more requests {CVE-2021-47391}
• drm/dp_mst: Fix MST sideband message body length check {CVE-2024-56616}
• Squashfs: check the inode number is not the invalid value of zero {CVE-2024-26982}
• wifi: mac80211: fix potential key use-after-free {CVE-2023-52530}
• crypto: qat - resolve race condition during AER recovery {CVE-2024-26974}
• netfilter: validate user input for expected length {CVE-2024-35896}
• wifi: cfg80211: check A-MSDU format more carefully {CVE-2024-35937}
• net: bridge: xmit: make sure we have at least eth header len bytes {CVE-2024-38538}
• bonding: Fix out-of-bounds read in bond_option_arp_ip_targets_set() {CVE-2024-39487}
• SUNRPC: Fix UAF in svc_tcp_listen_data_ready() {CVE-2023-52885}
• tty: Fix out-of-bound vmalloc access in imageblit {CVE-2021-47383}
• watchdog: Fix possible use-after-free by calling del_timer_sync() {CVE-2021-47321}
• virtio-net: Add validation for used length {CVE-2021-47352}
• USB: core: Fix hang in usb_kill_urb by adding memory barriers {CVE-2022-48760}
• scsi: mpt3sas: Avoid test/set_bit() operating in non-allocated memory {CVE-2024-40901}
• xfs: add bounds checking to xlog_recover_process_data {CVE-2024-41014}
• scsi: mpt3sas: Fix use-after-free warning {CVE-2022-48695}
• jffs2: prevent xattr node from overflowing the eraseblock {CVE-2024-38599}
• ecryptfs: Fix buffer size for tag 66 packet {CVE-2024-38578}
• dlm: fix plock invalid read {CVE-2022-49407}
• media: gspca: cpia1: shift-out-of-bounds in set_flicker {CVE-2023-52764}
• igb: Fix potential invalid memory access in igb_init_module() {CVE-2024-52332}
• jfs: fix shift-out-of-bounds in dbSplit {CVE-2024-56597}
• wifi: ath9k: Fix potential array-index-out-of-bounds read in ath9k_htc_txstatus() {CVE-2023-52594}
• pid: take a reference when initializing cad_pid {CVE-2021-47118}
• Bluetooth: af_bluetooth: Fix Use-After-Free in bt_sock_recvmsg {CVE-2023-51779}
• sched/rt: pick_next_rt_entity(): check list_entry {CVE-2023-1077}
• media: dm1105: Fix use after free bug in dm1105_remove due to race condition {CVE-2023-35824}
• xen/grant-table: add gnttab_try_end_foreign_access() {CVE-2022-23038}
• media: dvb-core: Fix use-after-free due to race at dvb_register_device() {CVE-2022-45884}
• media: dvb-core: Fix use-after-free due on race condition at dvb_net {CVE-2022-45886}
• media: dvb-core: Fix use-after-free on race condition at dvb_frontend {CVE-2022-45885}
• media: dvb-core: Fix use-after-free due to race condition at dvb_ca_en50221 {CVE-2022-45919}
• x86/elf: Disable automatic READ_IMPLIES_EXEC on 64-bit {CVE-2022-25265}
• x86/elf: Split READ_IMPLIES_EXEC from executable PT_GNU_STACK {CVE-2022-25265}
• x86/elf: Add table to document READ_IMPLIES_EXEC {CVE-2022-25265}
• i2c: i801: Don't generate an interrupt on bus reset {CVE-2021-47153}

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

The following security bugs were fixed:

• CVE-2021-47633: ath5k: fix OOB in ath5k_eeprom_read_pcal_info_5111 (bsc#1237768).
• CVE-2022-49080: mm/mempolicy: fix mpol_new leak in shared_policy_replace (bsc#1238033).
• CVE-2024-35949: btrfs: make sure that WRITTEN is set on all metadata blocks (bsc#1224700).
• CVE-2025-21690: scsi: storvsc: Ratelimit warning logs to prevent VM denial of service (bsc#1237025).
• CVE-2025-21692: net: sched: fix ets qdisc OOB Indexing (bsc#1237028).
• CVE-2025-21699: gfs2: Truncate address space when flipping GFS2_DIF_JDATA flag (bsc#1237139).

The following non-security bugs were fixed:

• net: mana: Add get_link and get_link_ksettings in ethtool (bsc#1236761).
• net: netvsc: Update default VMBus channels (bsc#1236757).
• scsi: storvsc: Handle SRB status value 0x30 (git-fixes).

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

The following security bugs were fixed:

• CVE-2021-47633: ath5k: fix OOB in ath5k_eeprom_read_pcal_info_5111 (bsc#1237768).
• CVE-2022-49080: mm/mempolicy: fix mpol_new leak in shared_policy_replace (bsc#1238033).
• CVE-2024-35863: Fixed potential UAF in is_valid_oplock_break() (bsc#1224763).
• CVE-2024-35949: btrfs: make sure that WRITTEN is set on all metadata blocks (bsc#1224700).
• CVE-2024-50199: mm/swapfile: skip HugeTLB pages for unuse_vma (bsc#1233112).
• CVE-2024-53104: media: uvcvideo: Skip parsing frames of type UVC_VS_UNDEFINED in uvc_parse_format (bsc#1234025).
• CVE-2024-56600: net: inet6: do not leave a dangling sk pointer in inet6_create() (bsc#1235217).
• CVE-2024-56601: net: inet: do not leave a dangling sk pointer in inet_create() (bsc#1235230).
• CVE-2024-56623: scsi: qla2xxx: Fix use after free on unload (bsc#1235466).
• CVE-2024-56650: netfilter: x_tables: fix LED ID check in led_tg_check() (bsc#1235430).
• CVE-2024-56658: net: defer final 'struct net' free in netns dismantle (bsc#1235441).
• CVE-2024-56664: bpf, sockmap: Fix race between element replace and close() (bsc#1235249).
• CVE-2024-56759: btrfs: fix use-after-free when COWing tree bock and tracing is enabled (bsc#1235645).
• CVE-2024-57791: net/smc: check return value of sock_recvmsg when draining clc data (bsc#1235759).
• CVE-2024-57798: drm/dp_mst: Ensure mst_primary pointer is valid in drm_dp_mst_handle_up_req() (bsc#1235818).
• CVE-2024-57849: s390/cpum_sf: Handle CPU hotplug remove during sampling (bsc#1235814).
• CVE-2024-57893: ALSA: seq: oss: Fix races at processing SysEx messages (bsc#1235920).
• CVE-2025-21690: scsi: storvsc: Ratelimit warning logs to prevent VM denial of service (bsc#1237025).
• CVE-2025-21692: net: sched: fix ets qdisc OOB Indexing (bsc#1237028).
• CVE-2025-21699: gfs2: Truncate address space when flipping GFS2_DIF_JDATA flag (bsc#1237139).

The following non-security bugs were fixed:

• net: mana: Add get_link and get_link_ksettings in ethtool (bsc#1236761).
• net: netvsc: Update default VMBus channels (bsc#1236757).
• NFS: Adjust the amount of readahead performed by NFS readdir (bsc#1231847).
• NFS: Do not flush the readdir cache in nfs_dentry_iput() (bsc#1231847).
• NFS: Improve heuristic for readdirplus -revert (bsc#1237160).
• NFS: Improve heuristic for readdirplus (bsc#1231847).
• NFS: Reduce readdir stack usage (bsc#1231847).
• NFS: Trigger the 'ls -l' readdir heuristic sooner (bsc#1231847).
• NFS: Use kmemdup_nul() in nfs_readdir_make_qstr() (bsc#1231847).
• scsi: storvsc: Handle SRB status value 0x30 (git-fixes).

The SUSE Linux Enterprise 11 SP4 kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2021-47633: ath5k: fix OOB in ath5k_eeprom_read_pcal_info_5111 (bsc#1237768).
• CVE-2022-49545: ALSA: usb-audio: Cancel pending work at closing a MIDI substream (bsc#1238729).
• CVE-2024-56658: net: defer final 'struct net' free in netns dismantle (bsc#1235441).
• CVE-2024-57996: net_sched: sch_sfq: do not allow 1 packet limit (bsc#1239076).
• CVE-2025-21718: net: rose: fix timer races against user threads (bsc#1239073).
• CVE-2025-21772: partitions: mac: fix handling of bogus partition table (bsc#1238911).

The SUSE Linux Enterprise 15 SP4 kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2024-2201: Fixed information leak in x86/BHI (bsc#1217339).
• CVE-2024-41092: drm/i915/gt: Fix potential UAF by revoke of fence registers (bsc#1228483).
• CVE-2024-42098: crypto: ecdh - explicitly zeroize private_key (bsc#1228779).
• CVE-2024-42229: crypto: aead,cipher - zeroize key buffer after use (bsc#1228708).
• CVE-2024-57996: net_sched: sch_sfq: do not allow 1 packet limit (bsc#1239076).
• CVE-2024-58014: wifi: brcmsmac: add gain range check to wlc_phy_iqcal_gainparams_nphy() (bsc#1239109).
• CVE-2025-21718: net: rose: fix timer races against user threads (bsc#1239073).
• CVE-2025-21780: drm/amdgpu: avoid buffer overflow attach in smu_sys_set_pp_table() (bsc#1239115).

The following non-security bugs were fixed:

• initcall_blacklist: Does not allow kernel_lockdown be blacklisted (bsc#1237521).
• x86/bhi: Avoid warning in #DB handler due to BHI mitigation (git-fixes).
• x86/bugs: Cache the value of MSR_IA32_ARCH_CAPABILITIES (git-fixes).
• x86/bugs: Fix BHI documentation (git-fixes).
• x86/bugs: Fix BHI handling of RRSBA (git-fixes).
• x86/bugs: Fix BHI retpoline check (git-fixes).
• x86/bugs: Fix return type of spectre_bhi_state() (git-fixes).
• x86/bugs: Remove CONFIG_BHI_MITIGATION_AUTO and spectre_bhi=auto (git-fixes).

The SUSE Linux Enterprise 15 SP5 RT kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2022-49053: scsi: target: tcmu: Fix possible page UAF (bsc#1237918).
• CVE-2022-49465: blk-throttle: Set BIO_THROTTLED when bio has been throttled (bsc#1238919).
• CVE-2022-49739: gfs2: Always check inode size of inline inodes (bsc#1240207).
• CVE-2023-52935: mm/khugepaged: fix ->anon_vma race (bsc#1240276).
• CVE-2024-53124: net: fix data-races around sk->sk_forward_alloc (bsc#1234074).
• CVE-2024-53176: smb: During unmount, ensure all cached dir instances drop their dentry (bsc#1234894).
• CVE-2024-53178: smb: Do not leak cfid when reconnect races with open_cached_dir (bsc#1234895).
• CVE-2024-56651: can: hi311x: hi3110_can_ist(): fix potential use-after-free (bsc#1235528).
• CVE-2024-57996: net_sched: sch_sfq: do not allow 1 packet limit (bsc#1239076).
• CVE-2024-58013: Bluetooth: MGMT: Fix slab-use-after-free Read in mgmt_remove_adv_monitor_sync (bsc#1239095).
• CVE-2024-58014: wifi: brcmsmac: add gain range check to wlc_phy_iqcal_gainparams_nphy() (bsc#1239109).
• CVE-2025-21693: mm: zswap: properly synchronize freeing resources during CPU hotunplug (bsc#1237029).
• CVE-2025-21718: net: rose: fix timer races against user threads (bsc#1239073).
• CVE-2025-21772: partitions: mac: fix handling of bogus partition table (bsc#1238911).
• CVE-2025-21780: drm/amdgpu: avoid buffer overflow attach in smu_sys_set_pp_table() (bsc#1239115).

The following non-security bugs were fixed:

• ACPI: processor: idle: Return an error if both P_LVL{2,3} idle states are invalid (bsc#1237530).
• RDMA/mana_ib: Prefer struct_size over open coded arithmetic (bsc#1239016).
• RDMA/mana_ib: Use v2 version of cfg_rx_steer_req to enable RX coalescing (bsc#1239016).
• Revert 'gfs2: Fix inode height consistency check (git-fixes).
• btrfs: defrag: do not use merged extent map for their generation check (bsc#1239968).
• btrfs: fix defrag not merging contiguous extents due to merged extent maps (bsc#1239968).
• btrfs: fix extent map merging not happening for adjacent extents (bsc#1239968).
• btrfs: send: allow cloning non-aligned extent if it ends at i_size (bsc#1239969).
• btrfs: send: fix invalid clone operation for file that got its size decreased (bsc#1239969).
• cifs: Add a laundromat thread for cached directories (git-fixes).
• cifs: fix potential null pointer use in destroy_workqueue in init_cifs error path (git-fixes).
• gfs2: Fix inode height consistency check (git-fixes).
• mm/mmu_notifier.c: fix race in mmu_interval_notifier_remove() (bsc#1239126).
• mm: zswap: move allocations during CPU init outside the lock (git-fixes).
• net: mana: Add flex array to struct mana_cfg_rx_steer_req_v2 (bsc#1239016).
• net: mana: Allow variable size indirection table (bsc#1239016).
• net: mana: Avoid open coded arithmetic (bsc#1239016).
• net: mana: Support holes in device list reply msg (bsc#1240133).
• sched/membarrier: Fix redundant load of membarrier_state (bsc#1232743).
• smb3: allow controlling length of time directory entries are cached with dir leases (git-fixes).
• smb3: do not start laundromat thread when dir leases disabled (git-fixes).
• smb3: retrying on failed server close (git-fixes).
• smb: client: destroy cfid_put_wq on module exit (git-fixes).
• smb: client: disable directory caching when dir_cache_timeout is zero (git-fixes).
• smb: client: do not start laundromat thread on nohandlecache (git-fixes).
• smb: client: make laundromat a delayed worker (git-fixes).
• smb: client: properly close cfids on umount (bsc#1231432, bsc#1232299, bsc#1235599, bsc#1234896).
• tpm: send_data: Wait longer for the TPM to become ready (bsc#1235870).

The SUSE Linux Enterprise 15 SP4 RT kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2022-49053: scsi: target: tcmu: Fix possible page UAF (bsc#1237918).
• CVE-2022-49465: blk-throttle: Set BIO_THROTTLED when bio has been throttled (bsc#1238919).
• CVE-2022-49739: gfs2: Always check inode size of inline inodes (bsc#1240207).
• CVE-2023-52935: mm/khugepaged: fix ->anon_vma race (bsc#1240276).
• CVE-2024-2201: Fixed information leak in x86/BHI (bsc#1217339).
• CVE-2024-41092: drm/i915/gt: Fix potential UAF by revoke of fence registers (bsc#1228483).
• CVE-2024-42098: crypto: ecdh - explicitly zeroize private_key (bsc#1228779).
• CVE-2024-42229: crypto: aead,cipher - zeroize key buffer after use (bsc#1228708).
• CVE-2024-53064: idpf: fix idpf_vc_core_init error path (bsc#1233558 bsc#1234464).
• CVE-2024-56651: can: hi311x: hi3110_can_ist(): fix potential use-after-free (bsc#1235528).
• CVE-2024-57996: net_sched: sch_sfq: do not allow 1 packet limit (bsc#1239076).
• CVE-2024-58014: wifi: brcmsmac: add gain range check to wlc_phy_iqcal_gainparams_nphy() (bsc#1239109).
• CVE-2024-58083: KVM: Explicitly verify target vCPU is online in kvm_get_vcpu() (bsc#1239036).
• CVE-2025-21693: mm: zswap: properly synchronize freeing resources during CPU hotunplug (bsc#1237029).
• CVE-2025-21714: RDMA/mlx5: Fix implicit ODP use after free (bsc#1237890).
• CVE-2025-21718: net: rose: fix timer races against user threads (bsc#1239073).
• CVE-2025-21732: RDMA/mlx5: Fix a race for an ODP MR which leads to CQE with error (bsc#1237877).
• CVE-2025-21753: btrfs: fix use-after-free when attempting to join an aborted transaction (bsc#1237875).
• CVE-2025-21772: partitions: mac: fix handling of bogus partition table (bsc#1238911).
• CVE-2025-21780: drm/amdgpu: avoid buffer overflow attach in smu_sys_set_pp_table() (bsc#1239115).
• CVE-2025-21839: kABI: Fix kABI after backport od CVE-2025-21839 (bsc#1239061).

The following non-security bugs were fixed:

• ACPI: processor: idle: Return an error if both P_LVL{2,3} idle states are invalid (bsc#1237530).
• RDMA/mana_ib: Prefer struct_size over open coded arithmetic (bsc#1239016).
• RDMA/mana_ib: Use v2 version of cfg_rx_steer_req to enable RX coalescing (bsc#1239016).
• RDMA/mlx5: Fix implicit ODP hang on parent deregistration (git-fixes)
• btrfs: defrag: do not use merged extent map for their generation check (bsc#1239968).
• btrfs: fix defrag not merging contiguous extents due to merged extent maps (bsc#1239968).
• btrfs: fix extent map merging not happening for adjacent extents (bsc#1239968).
• btrfs: send: allow cloning non-aligned extent if it ends at i_size (bsc#1239969).
• btrfs: send: fix invalid clone operation for file that got its size decreased (bsc#1239969).
• gfs2: Fix inode height consistency check (git-fixes).
• mm/mmu_notifier.c: fix race in mmu_interval_notifier_remove() (bsc#1239126).
• mm: zswap: move allocations during CPU init outside the lock (git-fixes).
• net: mana: Add flex array to struct mana_cfg_rx_steer_req_v2 (bsc#1239016).
• net: mana: Allow variable size indirection table (bsc#1239016).
• net: mana: Avoid open coded arithmetic (bsc#1239016).
• net: mana: Fix error handling in mana_create_txq/rxq's NAPI cleanup (bsc#1240195).
• net: mana: Support holes in device list reply msg (bsc#1240133).
• x86/bhi: Avoid warning in #DB handler due to BHI mitigation (git-fixes).
• x86/bugs: Cache the value of MSR_IA32_ARCH_CAPABILITIES (git-fixes).
• x86/bugs: Fix BHI documentation (git-fixes).
• x86/bugs: Fix BHI handling of RRSBA (git-fixes).
• x86/bugs: Fix BHI retpoline check (git-fixes).
• x86/bugs: Fix return type of spectre_bhi_state() (git-fixes).
• x86/bugs: Remove CONFIG_BHI_MITIGATION_AUTO and spectre_bhi=auto (git-fixes).

The SUSE Linux Enterprise 15 SP5 kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2022-49053: scsi: target: tcmu: Fix possible page UAF (bsc#1237918).
• CVE-2022-49465: blk-throttle: Set BIO_THROTTLED when bio has been throttled (bsc#1238919).
• CVE-2022-49739: gfs2: Always check inode size of inline inodes (bsc#1240207).
• CVE-2023-52935: mm/khugepaged: fix ->anon_vma race (bsc#1240276).
• CVE-2024-53124: net: fix data-races around sk->sk_forward_alloc (bsc#1234074).
• CVE-2024-53176: smb: During unmount, ensure all cached dir instances drop their dentry (bsc#1234894).
• CVE-2024-53178: smb: Do not leak cfid when reconnect races with open_cached_dir (bsc#1234895).
• CVE-2024-56651: can: hi311x: hi3110_can_ist(): fix potential use-after-free (bsc#1235528).
• CVE-2024-57996: net_sched: sch_sfq: do not allow 1 packet limit (bsc#1239076).
• CVE-2024-58013: Bluetooth: MGMT: Fix slab-use-after-free Read in mgmt_remove_adv_monitor_sync (bsc#1239095).
• CVE-2024-58014: wifi: brcmsmac: add gain range check to wlc_phy_iqcal_gainparams_nphy() (bsc#1239109).
• CVE-2025-21693: mm: zswap: properly synchronize freeing resources during CPU hotunplug (bsc#1237029).
• CVE-2025-21718: net: rose: fix timer races against user threads (bsc#1239073).
• CVE-2025-21772: partitions: mac: fix handling of bogus partition table (bsc#1238911).
• CVE-2025-21780: drm/amdgpu: avoid buffer overflow attach in smu_sys_set_pp_table() (bsc#1239115).

The following non-security bugs were fixed:

• ACPI: processor: idle: Return an error if both P_LVL{2,3} idle states are invalid (bsc#1237530).
• btrfs: defrag: do not use merged extent map for their generation check (bsc#1239968).
• btrfs: fix defrag not merging contiguous extents due to merged extent maps (bsc#1239968).
• btrfs: fix extent map merging not happening for adjacent extents (bsc#1239968).
• btrfs: send: allow cloning non-aligned extent if it ends at i_size (bsc#1239969).
• btrfs: send: fix invalid clone operation for file that got its size decreased (bsc#1239969).
• cifs: Add a laundromat thread for cached directories (git-fixes).
• cifs: fix potential null pointer use in destroy_workqueue in init_cifs error path (git-fixes).
• gfs2: Fix inode height consistency check (git-fixes).
• mm: zswap: move allocations during CPU init outside the lock (git-fixes).
• mm/mmu_notifier.c: fix race in mmu_interval_notifier_remove() (bsc#1239126).
• net: mana: Add flex array to struct mana_cfg_rx_steer_req_v2 (bsc#1239016).
• net: mana: Allow variable size indirection table (bsc#1239016).
• net: mana: Avoid open coded arithmetic (bsc#1239016).
• net: mana: Support holes in device list reply msg (bsc#1240133).
• RDMA/mana_ib: Prefer struct_size over open coded arithmetic (bsc#1239016).
• RDMA/mana_ib: Use v2 version of cfg_rx_steer_req to enable RX coalescing (bsc#1239016).
• sched/membarrier: Fix redundant load of membarrier_state (bsc#1232743).
• smb: client: destroy cfid_put_wq on module exit (git-fixes).
• smb: client: disable directory caching when dir_cache_timeout is zero (git-fixes).
• smb: client: do not start laundromat thread on nohandlecache (git-fixes).
• smb: client: make laundromat a delayed worker (git-fixes).
• smb: client: properly close cfids on umount (bsc#1231432, bsc#1232299, bsc#1235599, bsc#1234896).
• smb3: allow controlling length of time directory entries are cached with dir leases (git-fixes).
• smb3: do not start laundromat thread when dir leases disabled (git-fixes).
• smb3: retrying on failed server close (git-fixes).
• tpm: send_data: Wait longer for the TPM to become ready (bsc#1235870).

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

The following security bugs were fixed:

• CVE-2021-46925: Fixed kernel panic caused by race of smc_sock (bsc#1220466).
• CVE-2021-47645: media: staging: media: zoran: calculate the right buffer number for zoran_reap_stat_com (bsc#1237767).
• CVE-2021-47648: gpu: host1x: Fix a memory leak in 'host1x_remove()' (bsc#1237725).
• CVE-2022-49046: i2c: dev: check return value when calling dev_set_name() (bsc#1237842).
• CVE-2022-49051: net: usb: aqc111: Fix out-of-bounds accesses in RX fixup (bsc#1237903).
• CVE-2022-49053: scsi: target: tcmu: Fix possible page UAF (bsc#1237918).
• CVE-2022-49059: nfc: nci: add flush_workqueue to prevent uaf (bsc#1238007).
• CVE-2022-49074: irqchip/gic-v3: Fix GICR_CTLR.RWP polling (bsc#1237728).
• CVE-2022-49075: btrfs: fix qgroup reserve overflow the qgroup limit (bsc#1237733).
• CVE-2022-49084: qede: confirm skb is allocated before using (bsc#1237751).
• CVE-2022-49107: ceph: fix memory leak in ceph_readdir when note_last_dentry returns error (bsc#1237973).
• CVE-2022-49109: ceph: fix inode reference leakage in ceph_get_snapdir() (bsc#1237836).
• CVE-2022-49119: scsi: pm8001: Fix memory leak in pm8001_chip_fw_flash_update_req() (bsc#1237925).
• CVE-2022-49120: scsi: pm8001: Fix task leak in pm8001_send_abort_all() (bsc#1237969).
• CVE-2022-49209: bpf, sockmap: Fix memleak in tcp_bpf_sendmsg while sk msg is full (bsc#1238252).
• CVE-2022-49220: dax: make sure inodes are flushed before destroy cache (bsc#1237936).
• CVE-2022-49275: can: m_can: m_can_tx_handler(): fix use after free of skb (bsc#1238719).
• CVE-2022-49286: tpm: use try_get_ops() in tpm-space.c (bsc#1238647).
• CVE-2022-49292: ALSA: oss: Fix PCM OSS buffer allocation overflow (bsc#1238625).
• CVE-2022-49308: extcon: Modify extcon device to be created after driver data is set (bsc#1238654).
• CVE-2022-49331: nfc: st21nfca: fix memory leaks in EVT_TRANSACTION handling (bsc#1237813).
• CVE-2022-49344: af_unix: Fix a data-race in unix_dgram_peer_wake_me() (bsc#1237988).
• CVE-2022-49367: net: dsa: mv88e6xxx: Fix refcount leak in mv88e6xxx_mdios_register (bsc#1238447).
• CVE-2022-49370: firmware: dmi-sysfs: Fix memory leak in dmi_sysfs_register_handle (bsc#1238467).
• CVE-2022-49372: tcp: tcp_rtx_synack() can be called from process context (bsc#1238251).
• CVE-2022-49388: ubi: ubi_create_volume: Fix use-after-free when volume creation failed (bsc#1237934).
• CVE-2022-49395: um: Fix out-of-bounds read in LDT setup (bsc#1237953).
• CVE-2022-49397: phy: qcom-qmp: fix struct clk leak on probe errors (bsc#1237823).
• CVE-2022-49404: RDMA/hfi1: Fix potential integer multiplication overflow errors (bsc#1238430).
• CVE-2022-49416: wifi: mac80211: fix use-after-free in chanctx code (bsc#1238293).
• CVE-2022-49433: RDMA/hfi1: Prevent use of lock before it is initialized (bsc#1238268).
• CVE-2022-49472: net: phy: micrel: Allow probing without .driver_data (bsc#1238951).
• CVE-2022-49488: drm/msm/mdp5: Return error code in mdp5_mixer_release when deadlock (bsc#1238600).
• CVE-2022-49495: drm/msm/hdmi: check return value after calling platform_get_resource_byname() (bsc#1237932).
• CVE-2022-49497: net: remove two BUG() from skb_checksum_help() (bsc#1238946).
• CVE-2022-49505: NFC: NULL out the dev->rfkill to prevent UAF (bsc#1238615).
• CVE-2022-49516: ice: always check VF VSI pointer values (bsc#1238953).
• CVE-2022-49519: ath10k: skip ath10k_halt during suspend for driver state RESTARTING (bsc#1238943).
• CVE-2022-49524: media: pci: cx23885: Fix the error handling in cx23885_initdev() (bsc#1238949).
• CVE-2022-49530: drm/amd/pm: fix double free in si_parse_power_table() (bsc#1238944).
• CVE-2022-49538: ALSA: jack: Fix mutex call in snd_jack_report() (bsc#1238843).
• CVE-2022-49544: ipw2x00: Fix potential NULL dereference in libipw_xmit() (bsc#1238721).
• CVE-2022-49545: ALSA: usb-audio: Cancel pending work at closing a MIDI substream (bsc#1238729). -…

The SUSE Linux Enterprise 11 SP4 kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2021-47633: ath5k: fix OOB in ath5k_eeprom_read_pcal_info_5111 (bsc#1237768).
• CVE-2022-49545: ALSA: usb-audio: Cancel pending work at closing a MIDI substream (bsc#1238729).
• CVE-2024-56658: net: defer final 'struct net' free in netns dismantle (bsc#1235441).
• CVE-2024-57996: net_sched: sch_sfq: do not allow 1 packet limit (bsc#1239076).
• CVE-2025-21718: net: rose: fix timer races against user threads (bsc#1239073).
• CVE-2025-21772: partitions: mac: fix handling of bogus partition table (bsc#1238911).