CVE-2021-47163

The Linux Kernel, the operating system core itself.

Security Fix(es):

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

i2c: img-scb: fix reference leak when pm_runtime_get_sync fails

The PM reference count is not expected to be incremented on return in functions img_i2c_xfer and img_i2c_init.

However, pm_runtime_get_sync will increment the PM reference count even failed. Forgetting to putting operation will result in a reference leak here.

Replace it with pm_runtime_resume_and_get to keep usage counter balanced.(CVE-2020-36783)

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

kyber: fix out of bounds access when preempted

__blk_mq_sched_bio_merge() gets the ctx and hctx for the current CPU and passes the hctx to ->bio_merge(). kyber_bio_merge() then gets the ctx for the current CPU again and uses that to get the corresponding Kyber context in the passed hctx. However, the thread may be preempted between the two calls to blk_mq_get_ctx(), and the ctx returned the second time may no longer correspond to the passed hctx. This "works" accidentally most of the time, but it can cause us to read garbage if the second ctx came from an hctx with more ctx's than the first one (i.e., if ctx->index_hw[hctx->type] > hctx->nr_ctx).

This manifested as this UBSAN array index out of bounds error reported by Jakub:

UBSAN: array-index-out-of-bounds in ../kernel/locking/qspinlock.c:130:9 index 13106 is out of range for type 'long unsigned int [128]' Call Trace: dump_stack+0xa4/0xe5 ubsan_epilogue+0x5/0x40 __ubsan_handle_out_of_bounds.cold.13+0x2a/0x34 queued_spin_lock_slowpath+0x476/0x480 do_raw_spin_lock+0x1c2/0x1d0 kyber_bio_merge+0x112/0x180 blk_mq_submit_bio+0x1f5/0x1100 submit_bio_noacct+0x7b0/0x870 submit_bio+0xc2/0x3a0 btrfs_map_bio+0x4f0/0x9d0 btrfs_submit_data_bio+0x24e/0x310 submit_one_bio+0x7f/0xb0 submit_extent_page+0xc4/0x440 __extent_writepage_io+0x2b8/0x5e0 __extent_writepage+0x28d/0x6e0 extent_write_cache_pages+0x4d7/0x7a0 extent_writepages+0xa2/0x110 do_writepages+0x8f/0x180 __writeback_single_inode+0x99/0x7f0 writeback_sb_inodes+0x34e/0x790 __writeback_inodes_wb+0x9e/0x120 wb_writeback+0x4d2/0x660 wb_workfn+0x64d/0xa10 process_one_work+0x53a/0xa80 worker_thread+0x69/0x5b0 kthread+0x20b/0x240 ret_from_fork+0x1f/0x30

Only Kyber uses the hctx, so fix it by passing the request_queue to ->bio_merge() instead. BFQ and mq-deadline just use that, and Kyber can map the queues itself to avoid the mismatch.(CVE-2021-46984)

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

bus: qcom: Put child node before return

Put child node before return to fix potential reference count leak. Generally, the reference count of child is incremented and decremented automatically in the macro for_each_available_child_of_node() and should be decremented manually if the loop is broken in loop body.(CVE-2021-47054)

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

crypto: qat - ADF_STATUS_PF_RUNNING should be set after adf_dev_init

ADF_STATUS_PF_RUNNING is (only) used and checked by adf_vf2pf_shutdown() before calling adf_iov_putmsg()->mutex_lock(vf2pf_lock), however the vf2pf_lock is initialized in adf_dev_init(), which can fail and when it fail, the vf2pf_lock is either not initialized or destroyed, a subsequent use of vf2pf_lock will cause issue. To fix this issue, only set this flag if adf_dev_init() returns 0.

[ 7.178404] BUG: KASAN: user-memory-access in __mutex_lock.isra.0+0x1ac/0x7c0 [ 7.180345] Call Trace: [ 7.182576] mutex_lock+0xc9/0xd0 [ 7.183257] adf_iov_putmsg+0x118/0x1a0 [intel_qat] [ 7.183541] adf_vf2pf_shutdown+0x4d/0x7b [intel_qat] [ 7.183834] adf_dev_shutdown+0x172/0x2b0 [intel_qat] [ 7.184127] adf_probe+0x5e9/0x600 qat_dh895xccvf

In the Linux kernel, the following vulnerability has been…

The Linux Kernel, the operating system core itself.

Security Fix(es):

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

i2c: img-scb: fix reference leak when pm_runtime_get_sync fails

The PM reference count is not expected to be incremented on return in functions img_i2c_xfer and img_i2c_init.

However, pm_runtime_get_sync will increment the PM reference count even failed. Forgetting to putting operation will result in a reference leak here.

Replace it with pm_runtime_resume_and_get to keep usage counter balanced.(CVE-2020-36783)

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

kyber: fix out of bounds access when preempted

__blk_mq_sched_bio_merge() gets the ctx and hctx for the current CPU and passes the hctx to ->bio_merge(). kyber_bio_merge() then gets the ctx for the current CPU again and uses that to get the corresponding Kyber context in the passed hctx. However, the thread may be preempted between the two calls to blk_mq_get_ctx(), and the ctx returned the second time may no longer correspond to the passed hctx. This "works" accidentally most of the time, but it can cause us to read garbage if the second ctx came from an hctx with more ctx's than the first one (i.e., if ctx->index_hw[hctx->type] > hctx->nr_ctx).

This manifested as this UBSAN array index out of bounds error reported by Jakub:

UBSAN: array-index-out-of-bounds in ../kernel/locking/qspinlock.c:130:9 index 13106 is out of range for type 'long unsigned int [128]' Call Trace: dump_stack+0xa4/0xe5 ubsan_epilogue+0x5/0x40 __ubsan_handle_out_of_bounds.cold.13+0x2a/0x34 queued_spin_lock_slowpath+0x476/0x480 do_raw_spin_lock+0x1c2/0x1d0 kyber_bio_merge+0x112/0x180 blk_mq_submit_bio+0x1f5/0x1100 submit_bio_noacct+0x7b0/0x870 submit_bio+0xc2/0x3a0 btrfs_map_bio+0x4f0/0x9d0 btrfs_submit_data_bio+0x24e/0x310 submit_one_bio+0x7f/0xb0 submit_extent_page+0xc4/0x440 __extent_writepage_io+0x2b8/0x5e0 __extent_writepage+0x28d/0x6e0 extent_write_cache_pages+0x4d7/0x7a0 extent_writepages+0xa2/0x110 do_writepages+0x8f/0x180 __writeback_single_inode+0x99/0x7f0 writeback_sb_inodes+0x34e/0x790 __writeback_inodes_wb+0x9e/0x120 wb_writeback+0x4d2/0x660 wb_workfn+0x64d/0xa10 process_one_work+0x53a/0xa80 worker_thread+0x69/0x5b0 kthread+0x20b/0x240 ret_from_fork+0x1f/0x30

Only Kyber uses the hctx, so fix it by passing the request_queue to ->bio_merge() instead. BFQ and mq-deadline just use that, and Kyber can map the queues itself to avoid the mismatch.(CVE-2021-46984)

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

bus: qcom: Put child node before return

Put child node before return to fix potential reference count leak. Generally, the reference count of child is incremented and decremented automatically in the macro for_each_available_child_of_node() and should be decremented manually if the loop is broken in loop body.(CVE-2021-47054)

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

crypto: qat - ADF_STATUS_PF_RUNNING should be set after adf_dev_init

ADF_STATUS_PF_RUNNING is (only) used and checked by adf_vf2pf_shutdown() before calling adf_iov_putmsg()->mutex_lock(vf2pf_lock), however the vf2pf_lock is initialized in adf_dev_init(), which can fail and when it fail, the vf2pf_lock is either not initialized or destroyed, a subsequent use of vf2pf_lock will cause issue. To fix this issue, only set this flag if adf_dev_init() returns 0.

[ 7.178404] BUG: KASAN: user-memory-access in __mutex_lock.isra.0+0x1ac/0x7c0 [ 7.180345] Call Trace: [ 7.182576] mutex_lock+0xc9/0xd0 [ 7.183257] adf_iov_putmsg+0x118/0x1a0 [intel_qat] [ 7.183541] adf_vf2pf_shutdown+0x4d/0x7b [intel_qat] [ 7.183834] adf_dev_shutdown+0x172/0x2b0 [intel_qat] [ 7.184127] adf_probe+0x5e9/0x600 qat_dh895xccvf

In the Linux kernel, the following vulnerability has been…

In the Linux kernel, the following vulnerability has been resolved: tipc: wait and exit until all work queues are done On some host, a crash could be triggered simply by repeating these commands several times: # modprobe tipc # tipc bearer enable media udp name UDP1 localip 127.0.0.1 # rmmod tipc [] BUG: unable to handle kernel paging request at ffffffffc096bb00 [] Workqueue: events 0xffffffffc096bb00 [] Call Trace: [] ? process_one_work+0x1a7/0x360 [] ? worker_thread+0x30/0x390 [] ? create_worker+0x1a0/0x1a0 [] ? kthread+0x116/0x130 [] ? kthread_flush_work_fn+0x10/0x10 [] ? ret_from_fork+0x35/0x40 When removing the TIPC module, the UDP tunnel sock will be delayed to release in a work queue as sock_release() can't be done in rtnl_lock(). If the work queue is schedule to run after the TIPC module is removed, kernel will crash as the work queue function cleanup_beareri() code no longer exists when trying to invoke it. To fix it, this patch introduce a member wq_count in tipc_net to track the numbers of work queues in schedule, and wait and exit until all work queues are done in tipc_exit_net().

• CVE-url: https://ubuntu.com/security/CVE-2021-47352
  • virtio-net: Add validation for used length
• CVE-url: https://ubuntu.com/security/CVE-2024-46745
  • Input: uinput - reject requests with unreasonable number of slots
• CVE-url: https://ubuntu.com/security/CVE-2024-44952
  • driver core: Fix uevent_show() vs driver detach race
• CVE-url: https://ubuntu.com/security/CVE-2024-42304
  • ext4: make sure the first directory block is not a hole
• CVE-url: https://ubuntu.com/security/CVE-2024-42305
  • ext4: check dot and dotdot of dx_root before making dir indexed
• CVE-url: https://ubuntu.com/security/CVE-2024-53168
  • sunrpc: fix one UAF issue caused by sunrpc kernel tcp socket
• CVE-url: https://ubuntu.com/security/CVE-2024-49925
  • driver core: add dev_groups to all drivers
  • driver core: Fix error return code in really_probe()
  • fbdev: efifb: Register sysfs groups through driver core
• CVE-url: https://ubuntu.com/security/CVE-2024-56661
  • tipc: fix NULL deref in cleanup_bearer()
• CVE-url: https://ubuntu.com/security/CVE-2024-56642
  • tipc: Fix use-after-free of kernel socket in cleanup_bearer().
• CVE-url: https://ubuntu.com/security/CVE-2021-47163
  • tipc: wait and exit until all work queues are done
• CVE-url: https://ubuntu.com/security/CVE-2024-26915
  • drm/amdgpu: fix IH overflow on Vega10 v2
  • drm/amdgpu: Add check to prevent IH overflow
  • drm/amdgpu: Reset IH OVERFLOW_CLEAR bit
• CVE-url: https://ubuntu.com/security/CVE-2024-56770
  • net/sched: netem: account for backlog updates from child qdisc
  • netem: Update sch->q.qlen before qdisc_tree_reduce_backlog()
• CVE-url: https://ubuntu.com/security/CVE-2024-50296
  • net: hns3: fix kernel crash when uninstalling driver
• CVE-url: https://ubuntu.com/security/CVE-2024-53066
  • nfs: Fix KMSAN warning in decode_getfattr_attrs()
• CVE-url: https://ubuntu.com/security/CVE-2024-49944
  • sctp: set sk_state back to CLOSED if autobind fails in sctp_listen_start
• CVE-url: https://ubuntu.com/security/CVE-2024-50237
  • wifi: mac80211: do not pass a stopped vif to the driver in .get_txpower
• CVE-url: https://ubuntu.com/security/CVE-2024-46780
  • nilfs2: protect references to superblock parameters exposed in sysfs
• CVE-url: https://ubuntu.com/security/CVE-2024-53063
  • media: dvbdev: prevent the risk of out of memory access
  • media: dvbdev: fix the logic when DVB_DYNAMIC_MINORS is not set
• CVE-url: https://ubuntu.com/security/CVE-2023-52927
  • netfilter: allow exp not to be removed in nf_ct_find_expectation
• CVE-url: https://ubuntu.com/security/CVE-2021-47150
  • net: fec: fix the potential memory leak in fec_enet_init()
• CVE-url: https://ubuntu.com/security/CVE-2024-53140
  • netlink: terminate outstanding dump on socket close
• CVE-url: https://ubuntu.com/security/CVE-2025-21971
  • net_sched: Prevent creation of classes with TC_H_ROOT
• CVE-url: https://ubuntu.com/security/CVE-2025-37785
  • ext4: fix OOB read when checking dotdot dir
• CVE-url: https://ubuntu.com/security/CVE-2023-52572
  • cifs: Fix UAF in cifs_demultiplex_thread()
• CVE-url: https://ubuntu.com/security/CVE-2022-49738
  • f2fs: fix to do sanity check on summary info
  • f2fs: should put a page when checking the summary info
  • f2fs: fix to do sanity check on i_extra_isize in is_alive()
• CVE-url: https://ubuntu.com/security/CVE-2022-49740
  • wifi: brcmfmac: Check the count value of channel spec to prevent out-of- bounds reads
• CVE-url: https://ubuntu.com/security/
  • ipv6: Define dscp_t and stop taking ECN bits into account in fib6-rules
• CVE-url: https://ubuntu.com/security/CVE-2023-53020
  • l2tp: close all race conditions in l2tp_tunnel_register()
• CVE-url: https://ubuntu.com/security/CVE-2025-21957
  • scsi: qla1280: Fix kernel oops when debug level > 2 *…

[ Ubuntu: 4.15.0-247.258 ]

• CVE-url: https://ubuntu.com/security/CVE-2021-47352
  • virtio-net: Add validation for used length
• CVE-url: https://ubuntu.com/security/CVE-2024-46745
  • Input: uinput - reject requests with unreasonable number of slots
• CVE-url: https://ubuntu.com/security/CVE-2024-44952
  • driver core: Fix uevent_show() vs driver detach race
• CVE-url: https://ubuntu.com/security/CVE-2024-42304
  • ext4: make sure the first directory block is not a hole
• CVE-url: https://ubuntu.com/security/CVE-2024-42305
  • ext4: check dot and dotdot of dx_root before making dir indexed
• CVE-url: https://ubuntu.com/security/CVE-2024-53168
  • sunrpc: fix one UAF issue caused by sunrpc kernel tcp socket
• CVE-url: https://ubuntu.com/security/CVE-2024-49925
  • driver core: add dev_groups to all drivers
  • driver core: Fix error return code in really_probe()
  • fbdev: efifb: Register sysfs groups through driver core
• CVE-url: https://ubuntu.com/security/CVE-2024-56661
  • tipc: fix NULL deref in cleanup_bearer()
• CVE-url: https://ubuntu.com/security/CVE-2024-56642
  • tipc: Fix use-after-free of kernel socket in cleanup_bearer().
• CVE-url: https://ubuntu.com/security/CVE-2021-47163
  • tipc: wait and exit until all work queues are done
• CVE-url: https://ubuntu.com/security/CVE-2024-26915
  • drm/amdgpu: fix IH overflow on Vega10 v2
  • drm/amdgpu: Add check to prevent IH overflow
  • drm/amdgpu: Reset IH OVERFLOW_CLEAR bit
• CVE-url: https://ubuntu.com/security/CVE-2024-56770
  • net/sched: netem: account for backlog updates from child qdisc
  • netem: Update sch->q.qlen before qdisc_tree_reduce_backlog()
• CVE-url: https://ubuntu.com/security/CVE-2024-50296
  • net: hns3: fix kernel crash when uninstalling driver
• CVE-url: https://ubuntu.com/security/CVE-2024-53066
  • nfs: Fix KMSAN warning in decode_getfattr_attrs()
• CVE-url: https://ubuntu.com/security/CVE-2024-49944
  • sctp: set sk_state back to CLOSED if autobind fails in sctp_listen_start
• CVE-url: https://ubuntu.com/security/CVE-2024-50237
  • wifi: mac80211: do not pass a stopped vif to the driver in .get_txpower
• CVE-url: https://ubuntu.com/security/CVE-2024-46780
  • nilfs2: protect references to superblock parameters exposed in sysfs
• CVE-url: https://ubuntu.com/security/CVE-2024-53063
  • media: dvbdev: prevent the risk of out of memory access
  • media: dvbdev: fix the logic when DVB_DYNAMIC_MINORS is not set
• CVE-url: https://ubuntu.com/security/CVE-2023-52927
  • netfilter: allow exp not to be removed in nf_ct_find_expectation
• CVE-url: https://ubuntu.com/security/CVE-2021-47150
  • net: fec: fix the potential memory leak in fec_enet_init()
• CVE-url: https://ubuntu.com/security/CVE-2024-53140
  • netlink: terminate outstanding dump on socket close
• CVE-url: https://ubuntu.com/security/CVE-2025-21971
  • net_sched: Prevent creation of classes with TC_H_ROOT
• CVE-url: https://ubuntu.com/security/CVE-2025-37785
  • ext4: fix OOB read when checking dotdot dir
• CVE-url: https://ubuntu.com/security/CVE-2023-52572
  • cifs: Fix UAF in cifs_demultiplex_thread()
• CVE-url: https://ubuntu.com/security/CVE-2022-49738
  • f2fs: fix to do sanity check on summary info
  • f2fs: should put a page when checking the summary info
  • f2fs: fix to do sanity check on i_extra_isize in is_alive()
• CVE-url: https://ubuntu.com/security/CVE-2022-49740
  • wifi: brcmfmac: Check the count value of channel spec to prevent out-of- bounds reads
• CVE-url: https://ubuntu.com/security/
  • ipv6: Define dscp_t and stop taking ECN bits into account in fib6-rules
• CVE-url: https://ubuntu.com/security/CVE-2023-53020
  • l2tp: close all race conditions in l2tp_tunnel_register()
• CVE-url: https://ubuntu.com/security/CVE-2025-21957
  • scsi: qla1280: Fix kernel oops…

• CVE-url: https://ubuntu.com/security/CVE-2024-57896
  • btrfs: flush delalloc workers queue before stopping cleaner kthread during unmount
• CVE-url: https://ubuntu.com/security/CVE-2024-56551
  • drm/amdgpu: fix usage slab after free
• CVE-url: https://ubuntu.com/security/CVE-2021-47211
  • ALSA: usb-audio: fix null pointer dereference on pointer cs_desc
• CVE-url: https://ubuntu.com/security/CVE-2024-56661
  • tipc: fix NULL deref in cleanup_bearer()
• CVE-url: https://ubuntu.com/security/CVE-2024-56642
  • tipc: Fix use-after-free of kernel socket in cleanup_bearer().
• CVE-url: https://ubuntu.com/security/CVE-2021-47163
  • tipc: wait and exit until all work queues are done
• Miscellaneous upstream changes
  • Revert "block: add check that partition length needs to be aligned with block size"

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

The Linux Enterprise 12 SP5 kernel turned LTSS (Extended Security)

The following security bugs were fixed:

• CVE-2021-46936: Fixed use-after-free in tw_timer_handler() (bsc#1220439).
• CVE-2021-47163: kABI fix for tipc: wait and exit until all work queues are done (bsc#1221980).
• CVE-2021-47612: nfc: fix segfault in nfc_genl_dump_devices_done (bsc#1226585).
• CVE-2022-48809: net: fix a memleak when uncloning an skb dst and its metadata (bsc#1227947).
• CVE-2022-48951: ASoC: ops: Correct bounds check for second channel on SX controls (bsc#1231929).
• CVE-2022-48956: ipv6: avoid use-after-free in ip6_fragment() (bsc#1231893).
• CVE-2022-48958: ethernet: aeroflex: fix potential skb leak in greth_init_rings() (bsc#1231889).
• CVE-2022-48960: net: hisilicon: Fix potential use-after-free in hix5hd2_rx() (bsc#1231979).
• CVE-2022-48962: net: hisilicon: Fix potential use-after-free in hisi_femac_rx() (bsc#1232286).
• CVE-2022-48966: net: mvneta: Fix an out of bounds check (bsc#1232191).
• CVE-2022-48967: NFC: nci: Bounds check struct nfc_target arrays (bsc#1232304).
• CVE-2022-48971: Bluetooth: Fix not cleanup led when bt_init fails (bsc#1232037).
• CVE-2022-48972: mac802154: fix missing INIT_LIST_HEAD in ieee802154_if_add() (bsc#1232025).
• CVE-2022-48973: gpio: amd8111: Fix PCI device reference count leak (bsc#1232039).
• CVE-2022-48978: HID: core: fix shift-out-of-bounds in hid_report_raw_event (bsc#1232038).
• CVE-2022-48991: mm/khugepaged: invoke MMU notifiers in shmem/file collapse paths (bsc#1232070).
• CVE-2022-48992: ASoC: soc-pcm: Add NULL check in BE reparenting (bsc#1232071).
• CVE-2022-49000: iommu/vt-d: Fix PCI device refcount leak in has_external_pci() (bsc#1232123).
• CVE-2022-49002: iommu/vt-d: Fix PCI device refcount leak in dmar_dev_scope_init() (bsc#1232133).
• CVE-2022-49010: hwmon: (coretemp) Check for null before removing sysfs attrs (bsc#1232172).
• CVE-2022-49011: hwmon: (coretemp) fix pci device refcount leak in nv1a_ram_new() (bsc#1232006).
• CVE-2022-49014: net: tun: Fix use-after-free in tun_detach() (bsc#1231890).
• CVE-2022-49015: net: hsr: Fix potential use-after-free (bsc#1231938).
• CVE-2022-49020: net/9p: Fix a potential socket leak in p9_socket_open (bsc#1232175).
• CVE-2022-49021: net: phy: fix null-ptr-deref while probe() failed (bsc#1231939).
• CVE-2022-49026: e100: Fix possible use after free in e100_xmit_prepare (bsc#1231997).
• CVE-2022-49027: iavf: Fix error handling in iavf_init_module() (bsc#1232007).
• CVE-2022-49028: ixgbevf: Fix resource leak in ixgbevf_init_module() (bsc#1231996).
• CVE-2022-49029: hwmon: (ibmpex) Fix possible UAF when ibmpex_register_bmc() fails (bsc#1231995).
• CVE-2023-52898: xhci: Fix null pointer dereference when host dies (bsc#1229568).
• CVE-2023-52918: media: pci: cx23885: check cx23885_vdev_init() return (bsc#1232047).
• CVE-2024-26804: net: ip_tunnel: prevent perpetual headroom growth (bsc#1222629).
• CVE-2024-38538: net: bridge: xmit: make sure we have at least eth header len bytes (bsc#1226606).
• CVE-2024-39476: md/raid5: fix deadlock that raid5d() wait for itself to clear MD_SB_CHANGE_PENDING (bsc#1227437).
• CVE-2024-40965: i2c: lpi2c: Avoid calling clk_get_rate during transfer (bsc#1227885).
• CVE-2024-41082: nvme-fabrics: use reserved tag for reg read/write command (bsc#1228620).
• CVE-2024-42114: netlink: extend policy range validation (bsc#1228564 prerequisite).
• CVE-2024-42253: gpio: pca953x: fix pca953x_irq_bus_sync_unlock race (bsc#1229005 stable-fixes).
• CVE-2024-44931: gpio: prevent potential speculation leaks in gpio_device_get_desc() (bsc#1229837 stable-fixes).
• CVE-2024-44958: sched/smt: Fix unbalance sched_smt_present dec/inc (bsc#1230179).
• CVE-2024-46724: drm/amdgpu: Fix out-of-bounds read of df_v1_7_channel_number (bsc#1230725).
• CVE-2024-46755: wifi: mwifiex: Do not return unused priv in mwifiex_get_priv_by_id() (bsc#1230802). -…

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

The Linux Enterprise 12 SP5 kernel turned LTSS (Extended Security)

The following security bugs were fixed:

• CVE-2021-46936: Fixed use-after-free in tw_timer_handler() (bsc#1220439).
• CVE-2021-47163: kABI fix for tipc: wait and exit until all work queues are done (bsc#1221980).
• CVE-2021-47612: nfc: fix segfault in nfc_genl_dump_devices_done (bsc#1226585).
• CVE-2022-48809: net: fix a memleak when uncloning an skb dst and its metadata (bsc#1227947).
• CVE-2022-48951: ASoC: ops: Correct bounds check for second channel on SX controls (bsc#1231929).
• CVE-2022-48956: ipv6: avoid use-after-free in ip6_fragment() (bsc#1231893).
• CVE-2022-48958: ethernet: aeroflex: fix potential skb leak in greth_init_rings() (bsc#1231889).
• CVE-2022-48960: net: hisilicon: Fix potential use-after-free in hix5hd2_rx() (bsc#1231979).
• CVE-2022-48962: net: hisilicon: Fix potential use-after-free in hisi_femac_rx() (bsc#1232286).
• CVE-2022-48966: net: mvneta: Fix an out of bounds check (bsc#1232191).
• CVE-2022-48967: NFC: nci: Bounds check struct nfc_target arrays (bsc#1232304).
• CVE-2022-48971: Bluetooth: Fix not cleanup led when bt_init fails (bsc#1232037).
• CVE-2022-48972: mac802154: fix missing INIT_LIST_HEAD in ieee802154_if_add() (bsc#1232025).
• CVE-2022-48973: gpio: amd8111: Fix PCI device reference count leak (bsc#1232039).
• CVE-2022-48978: HID: core: fix shift-out-of-bounds in hid_report_raw_event (bsc#1232038).
• CVE-2022-48991: mm/khugepaged: invoke MMU notifiers in shmem/file collapse paths (bsc#1232070).
• CVE-2022-48992: ASoC: soc-pcm: Add NULL check in BE reparenting (bsc#1232071).
• CVE-2022-49000: iommu/vt-d: Fix PCI device refcount leak in has_external_pci() (bsc#1232123).
• CVE-2022-49002: iommu/vt-d: Fix PCI device refcount leak in dmar_dev_scope_init() (bsc#1232133).
• CVE-2022-49010: hwmon: (coretemp) Check for null before removing sysfs attrs (bsc#1232172).
• CVE-2022-49011: hwmon: (coretemp) fix pci device refcount leak in nv1a_ram_new() (bsc#1232006).
• CVE-2022-49014: net: tun: Fix use-after-free in tun_detach() (bsc#1231890).
• CVE-2022-49015: net: hsr: Fix potential use-after-free (bsc#1231938).
• CVE-2022-49020: net/9p: Fix a potential socket leak in p9_socket_open (bsc#1232175).
• CVE-2022-49021: net: phy: fix null-ptr-deref while probe() failed (bsc#1231939).
• CVE-2022-49026: e100: Fix possible use after free in e100_xmit_prepare (bsc#1231997).
• CVE-2022-49027: iavf: Fix error handling in iavf_init_module() (bsc#1232007).
• CVE-2022-49028: ixgbevf: Fix resource leak in ixgbevf_init_module() (bsc#1231996).
• CVE-2022-49029: hwmon: (ibmpex) Fix possible UAF when ibmpex_register_bmc() fails (bsc#1231995).
• CVE-2023-52898: xhci: Fix null pointer dereference when host dies (bsc#1229568).
• CVE-2023-52918: media: pci: cx23885: check cx23885_vdev_init() return (bsc#1232047).
• CVE-2024-26804: net: ip_tunnel: prevent perpetual headroom growth (bsc#1222629).
• CVE-2024-38538: net: bridge: xmit: make sure we have at least eth header len bytes (bsc#1226606).
• CVE-2024-39476: md/raid5: fix deadlock that raid5d() wait for itself to clear MD_SB_CHANGE_PENDING (bsc#1227437).
• CVE-2024-40965: i2c: lpi2c: Avoid calling clk_get_rate during transfer (bsc#1227885).
• CVE-2024-41082: nvme-fabrics: use reserved tag for reg read/write command (bsc#1228620).
• CVE-2024-42114: netlink: extend policy range validation (bsc#1228564 prerequisite).
• CVE-2024-42253: gpio: pca953x: fix pca953x_irq_bus_sync_unlock race (bsc#1229005 stable-fixes).
• CVE-2024-44931: gpio: prevent potential speculation leaks in gpio_device_get_desc() (bsc#1229837 stable-fixes).
• CVE-2024-44958: sched/smt: Fix unbalance sched_smt_present dec/inc (bsc#1230179).
• CVE-2024-46724: drm/amdgpu: Fix out-of-bounds read of df_v1_7_channel_number (bsc#1230725).
• CVE-2024-46755: wifi: mwifiex: Do not return unused priv in mwifiex_get_priv_by_id() (bsc#1230802). -…

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

The following security bugs were fixed:

• CVE-2022-49111: Bluetooth: Fix use after free in hci_send_acl (bsc#1237984).
• CVE-2025-21726: padata: avoid UAF for reorder_work (bsc#1238865).
• CVE-2025-21785: arm64: cacheinfo: Avoid out-of-bounds write to cacheinfo array (bsc#1238747).
• CVE-2025-21791: vrf: use RCU protection in l3mdev_l3_out() (bsc#1238512).
• CVE-2025-22004: net: atm: fix use after free in lec_send() (bsc#1240835).
• CVE-2025-22020: memstick: rtsx_usb_ms: Fix slab-use-after-free in rtsx_usb_ms_drv_remove (bsc#1241280).
• CVE-2025-22055: net: fix geneve_opt length integer overflow (bsc#1241371).

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

The following security bugs were fixed:

• CVE-2025-21726: padata: avoid UAF for reorder_work (bsc#1238865).
• CVE-2025-21785: arm64: cacheinfo: Avoid out-of-bounds write to cacheinfo array (bsc#1238747).
• CVE-2025-21791: vrf: use RCU protection in l3mdev_l3_out() (bsc#1238512).
• CVE-2025-22004: net: atm: fix use after free in lec_send() (bsc#1240835).
• CVE-2025-22020: memstick: rtsx_usb_ms: Fix slab-use-after-free in rtsx_usb_ms_drv_remove (bsc#1241280).
• CVE-2025-22055: net: fix geneve_opt length integer overflow (bsc#1241371).

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:

• Block layer subsystem;
• Character device driver;
• Hardware crypto device drivers;
• GPU drivers;
• Media drivers;
• Network drivers;
• SCSI subsystem;
• USB Gadget drivers;
• Framebuffer layer;
• Ceph distributed file system;
• File systems infrastructure;
• JFS file system;
• Network file system (NFS) client;
• NILFS2 file system;
• SMB network file system;
• Netfilter;
• CAN network layer;
• IPv6 networking;
• MAC80211 subsystem;
• Netlink;
• Network traffic control;
• SCTP protocol;
• TIPC protocol; (CVE-2024-53173, CVE-2024-26689, CVE-2024-46771, CVE-2024-36934, CVE-2023-52458, CVE-2021-47191, CVE-2024-50296, CVE-2024-26974, CVE-2021-47150, CVE-2024-53140, CVE-2025-21971, CVE-2024-50237, CVE-2024-46780, CVE-2023-52741, CVE-2024-56642, CVE-2024-56631, CVE-2024-53063, CVE-2024-36015, CVE-2021-47163, CVE-2024-56651, CVE-2024-49925, CVE-2023-52664, CVE-2021-47219, CVE-2024-50256, CVE-2024-53066, CVE-2024-49944, CVE-2024-56598, CVE-2024-56650, CVE-2024-26996, CVE-2024-35864, CVE-2024-56770, CVE-2024-26915, CVE-2023-52927)

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:

• Block layer subsystem;
• Character device driver;
• Hardware crypto device drivers;
• GPU drivers;
• Media drivers;
• Network drivers;
• SCSI subsystem;
• USB Gadget drivers;
• Framebuffer layer;
• Ceph distributed file system;
• File systems infrastructure;
• JFS file system;
• Network file system (NFS) client;
• NILFS2 file system;
• SMB network file system;
• Netfilter;
• CAN network layer;
• IPv6 networking;
• MAC80211 subsystem;
• Netlink;
• Network traffic control;
• SCTP protocol;
• TIPC protocol; (CVE-2023-52664, CVE-2024-26974, CVE-2024-49944, CVE-2024-50256, CVE-2024-35864, CVE-2025-21971, CVE-2023-52741, CVE-2024-50296, CVE-2024-50237, CVE-2021-47191, CVE-2024-46771, CVE-2024-56770, CVE-2021-47163, CVE-2024-53063, CVE-2024-53140, CVE-2024-36015, CVE-2024-56650, CVE-2024-53173, CVE-2024-53066, CVE-2024-26689, CVE-2024-56651, CVE-2024-36934, CVE-2024-56598, CVE-2021-47219, CVE-2024-26915, CVE-2024-46780, CVE-2024-49925, CVE-2023-52458, CVE-2021-47150, CVE-2024-56631, CVE-2024-26996, CVE-2023-52927, CVE-2024-56642)

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:

• Block layer subsystem;
• Character device driver;
• Hardware crypto device drivers;
• GPU drivers;
• Media drivers;
• Network drivers;
• SCSI subsystem;
• USB Gadget drivers;
• Framebuffer layer;
• Ceph distributed file system;
• File systems infrastructure;
• JFS file system;
• Network file system (NFS) client;
• NILFS2 file system;
• SMB network file system;
• Netfilter;
• CAN network layer;
• IPv6 networking;
• MAC80211 subsystem;
• Netlink;
• Network traffic control;
• SCTP protocol;
• TIPC protocol; (CVE-2023-52741, CVE-2024-56631, CVE-2024-50296, CVE-2024-50256, CVE-2024-50237, CVE-2021-47219, CVE-2024-49944, CVE-2024-26915, CVE-2024-56642, CVE-2023-52664, CVE-2024-36934, CVE-2023-52458, CVE-2024-35864, CVE-2024-56598, CVE-2025-21971, CVE-2024-53063, CVE-2023-52927, CVE-2024-46771, CVE-2024-49925, CVE-2024-53140, CVE-2024-36015, CVE-2024-26689, CVE-2024-53173, CVE-2021-47191, CVE-2024-56770, CVE-2024-56650, CVE-2021-47150, CVE-2021-47163, CVE-2024-46780, CVE-2024-56651, CVE-2024-26996, CVE-2024-26974, CVE-2024-53066)

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:

• Block layer subsystem;
• Character device driver;
• Hardware crypto device drivers;
• GPU drivers;
• Media drivers;
• Network drivers;
• SCSI subsystem;
• USB Gadget drivers;
• Framebuffer layer;
• Ceph distributed file system;
• File systems infrastructure;
• JFS file system;
• Network file system (NFS) client;
• NILFS2 file system;
• SMB network file system;
• Netfilter;
• CAN network layer;
• IPv6 networking;
• MAC80211 subsystem;
• Netlink;
• Network traffic control;
• SCTP protocol;
• TIPC protocol; (CVE-2025-21971, CVE-2024-50237, CVE-2023-52927, CVE-2023-52458, CVE-2021-47163, CVE-2024-26689, CVE-2024-53066, CVE-2021-47191, CVE-2021-47219, CVE-2024-56770, CVE-2024-46780, CVE-2024-56598, CVE-2023-52741, CVE-2024-53173, CVE-2021-47150, CVE-2024-50296, CVE-2024-56631, CVE-2024-53063, CVE-2024-56642, CVE-2024-50256, CVE-2024-26974, CVE-2024-56651, CVE-2024-36934, CVE-2023-52664, CVE-2024-26996, CVE-2024-26915, CVE-2024-46771, CVE-2024-56650, CVE-2024-53140, CVE-2024-49925, CVE-2024-36015, CVE-2024-49944, CVE-2024-35864)

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:

• Block layer subsystem;
• Character device driver;
• Hardware crypto device drivers;
• GPU drivers;
• Media drivers;
• Network drivers;
• SCSI subsystem;
• USB Gadget drivers;
• Framebuffer layer;
• Ceph distributed file system;
• File systems infrastructure;
• JFS file system;
• Network file system (NFS) client;
• NILFS2 file system;
• SMB network file system;
• Netfilter;
• CAN network layer;
• IPv6 networking;
• MAC80211 subsystem;
• Netlink;
• Network traffic control;
• SCTP protocol;
• TIPC protocol; (CVE-2024-49944, CVE-2024-26996, CVE-2024-46771, CVE-2024-56651, CVE-2023-52927, CVE-2021-47191, CVE-2024-56642, CVE-2023-52664, CVE-2024-53173, CVE-2021-47150, CVE-2024-56770, CVE-2024-50237, CVE-2024-46780, CVE-2024-36015, CVE-2023-52458, CVE-2024-49925, CVE-2024-53063, CVE-2024-53066, CVE-2025-21971, CVE-2024-50296, CVE-2024-50256, CVE-2024-35864, CVE-2024-56631, CVE-2024-53140, CVE-2021-47219, CVE-2024-56598, CVE-2024-36934, CVE-2021-47163, CVE-2024-26915, CVE-2024-56650, CVE-2024-26974, CVE-2023-52741, CVE-2024-26689)

Demi Marie Obenour and Simon Gaiser discovered that several Xen para- virtualization device frontends did not properly restrict the access rights of device backends. An attacker could possibly use a malicious Xen backend to gain access to memory pages of a guest VM or cause a denial of service in the guest. (CVE-2022-23041)

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:

• Hardware crypto device drivers;
• GPU drivers;
• IIO subsystem;
• Media drivers;
• Network drivers;
• SCSI subsystem;
• SPI subsystem;
• USB Gadget drivers;
• Ceph distributed file system;
• File systems infrastructure;
• JFS file system;
• Network file system (NFS) client;
• Network file system (NFS) server daemon;
• NILFS2 file system;
• SMB network file system;
• CAN network layer;
• IPv6 networking;
• MAC80211 subsystem;
• Netfilter;
• Netlink;
• Network traffic control;
• SCTP protocol;
• TIPC protocol; (CVE-2024-46780, CVE-2021-47163, CVE-2024-46771, CVE-2021-47506, CVE-2024-36934, CVE-2024-35864, CVE-2024-26915, CVE-2021-47150, CVE-2024-50256, CVE-2024-53173, CVE-2024-53066, CVE-2024-53063, CVE-2021-47245, CVE-2024-26996, CVE-2024-56642, CVE-2021-47219, CVE-2024-56631, CVE-2021-47587, CVE-2021-47191, CVE-2023-52741, CVE-2021-46959, CVE-2024-26689, CVE-2024-26974, CVE-2024-56770, CVE-2024-56598, CVE-2024-49944, CVE-2024-50237, CVE-2024-53140, CVE-2024-56650, CVE-2021-47500, CVE-2025-21971)

Demi Marie Obenour and Simon Gaiser discovered that several Xen para- virtualization device frontends did not properly restrict the access rights of device backends. An attacker could possibly use a malicious Xen backend to gain access to memory pages of a guest VM or cause a denial of service in the guest. (CVE-2022-23041)

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:

• Hardware crypto device drivers;
• GPU drivers;
• IIO subsystem;
• Media drivers;
• Network drivers;
• SCSI subsystem;
• SPI subsystem;
• USB Gadget drivers;
• Ceph distributed file system;
• File systems infrastructure;
• JFS file system;
• Network file system (NFS) client;
• Network file system (NFS) server daemon;
• NILFS2 file system;
• SMB network file system;
• CAN network layer;
• IPv6 networking;
• MAC80211 subsystem;
• Netfilter;
• Netlink;
• Network traffic control;
• SCTP protocol;
• TIPC protocol; (CVE-2024-56650, CVE-2024-26915, CVE-2024-50237, CVE-2024-53140, CVE-2024-26996, CVE-2021-47506, CVE-2024-26974, CVE-2025-21971, CVE-2024-56770, CVE-2024-53063, CVE-2021-47245, CVE-2024-36934, CVE-2021-47500, CVE-2024-53173, CVE-2021-47219, CVE-2024-46771, CVE-2024-56631, CVE-2024-46780, CVE-2024-35864, CVE-2021-46959, CVE-2021-47191, CVE-2021-47587, CVE-2024-53066, CVE-2024-56642, CVE-2021-47163, CVE-2024-50256, CVE-2021-47150, CVE-2024-56598, CVE-2024-26689, CVE-2023-52741, CVE-2024-49944)

Demi Marie Obenour and Simon Gaiser discovered that several Xen para- virtualization device frontends did not properly restrict the access rights of device backends. An attacker could possibly use a malicious Xen backend to gain access to memory pages of a guest VM or cause a denial of service in the guest. (CVE-2022-23041)

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:

• Hardware crypto device drivers;
• GPU drivers;
• IIO subsystem;
• Media drivers;
• Network drivers;
• SCSI subsystem;
• SPI subsystem;
• USB Gadget drivers;
• Ceph distributed file system;
• File systems infrastructure;
• JFS file system;
• Network file system (NFS) client;
• Network file system (NFS) server daemon;
• NILFS2 file system;
• SMB network file system;
• CAN network layer;
• IPv6 networking;
• MAC80211 subsystem;
• Netfilter;
• Netlink;
• Network traffic control;
• SCTP protocol;
• TIPC protocol; (CVE-2024-56598, CVE-2024-56650, CVE-2024-46771, CVE-2024-53173, CVE-2024-53063, CVE-2024-26974, CVE-2021-46959, CVE-2024-53066, CVE-2021-47163, CVE-2024-50237, CVE-2021-47587, CVE-2024-56631, CVE-2024-50256, CVE-2021-47150, CVE-2021-47506, CVE-2021-47219, CVE-2023-52741, CVE-2024-49944, CVE-2025-21971, CVE-2024-26689, CVE-2024-46780, CVE-2024-53140, CVE-2021-47245, CVE-2024-56642, CVE-2021-47500, CVE-2024-36934, CVE-2024-26996, CVE-2024-35864, CVE-2021-47191, CVE-2024-26915, CVE-2024-56770)

Demi Marie Obenour and Simon Gaiser discovered that several Xen para- virtualization device frontends did not properly restrict the access rights of device backends. An attacker could possibly use a malicious Xen backend to gain access to memory pages of a guest VM or cause a denial of service in the guest. (CVE-2022-23041)

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:

• Hardware crypto device drivers;
• GPU drivers;
• IIO subsystem;
• Media drivers;
• Network drivers;
• SCSI subsystem;
• SPI subsystem;
• USB Gadget drivers;
• Ceph distributed file system;
• File systems infrastructure;
• JFS file system;
• Network file system (NFS) client;
• Network file system (NFS) server daemon;
• NILFS2 file system;
• SMB network file system;
• CAN network layer;
• IPv6 networking;
• MAC80211 subsystem;
• Netfilter;
• Netlink;
• Network traffic control;
• SCTP protocol;
• TIPC protocol; (CVE-2024-46771, CVE-2021-47500, CVE-2024-56631, CVE-2021-47219, CVE-2021-47163, CVE-2024-50256, CVE-2024-56650, CVE-2024-46780, CVE-2021-47506, CVE-2024-26996, CVE-2025-21971, CVE-2021-47587, CVE-2021-47245, CVE-2024-56598, CVE-2021-46959, CVE-2024-26974, CVE-2024-56642, CVE-2023-52741, CVE-2021-47150, CVE-2024-53173, CVE-2024-26915, CVE-2024-36934, CVE-2024-56770, CVE-2024-53063, CVE-2021-47191, CVE-2024-26689, CVE-2024-53066, CVE-2024-35864, CVE-2024-50237, CVE-2024-53140, CVE-2024-49944)