CVE-2023-53765

• ip6_vti: fix slab-use-after-free in decode_session6 {CVE-2023-53821}
• ACPICA: Add AML_NO_OPERAND_RESOLVE flag to Timer {CVE-2023-53395}
• wifi: mac80211_hwsim: drop short frames {CVE-2023-53321}
• ext4: add bounds checking in get_max_inline_xattr_value_size() {CVE-2023-53285}
• md/raid10: fix null-ptr-deref in raid10_sync_request {CVE-2023-53832}
• dm flakey: fix a crash with invalid table line {CVE-2023-53786}
• wifi: mt7601u: fix an integer underflow {CVE-2023-53679}
• ext4: fix bug_on in __es_tree_search caused by bad boot loader inode {CVE-2022-50638}
• USB: usbtmc: Fix direction for 0-length ioctl control messages {CVE-2023-53761}
• scsi: ses: Fix slab-out-of-bounds in ses_enclosure_data_process() {CVE-2023-53803}
• ALSA: usb-audio: Fix out-of-bounds read in snd_usb_get_audioformat_uac3() {CVE-2025-38249}
• md/raid1: Fix stack memory use after return in raid1_reshape {CVE-2025-38445}
• atm: clip: Fix infinite recursive call of clip_push(). {CVE-2025-38459}
• dm cache: free background tracker's queued work in {CVE-2023-53765}
• drm/amdkfd: Fix UBSAN shift-out-of-bounds warning {CVE-2021-4460}
• drm/vmwgfx: Validate the box size for the snooped cursor {CVE-2022-36280,CVE-2022-50440}
• vsock: Do not allow binding to VMADDR_PORT_ANY {CVE-2025-38618}
• ice: set tx_tstamps when creating new Tx rings via ethtool {CVE-2022-50710}
• media: dvb-frontends: avoid stack overflow warnings with clang {CVE-2024-27075}
• PCI/ASPM: Disable ASPM on MFD function removal to avoid use-after-free {CVE-2023-53446}
• cifs: Fix warning and UAF when destroy the MR list {CVE-2023-53427}
• sctp: fix a potential overflow in sctp_ifwdtsn_skip {CVE-2023-53372}
• md/raid10: check slab-out-of-bounds in md_bitmap_get_counter {CVE-2023-53357}
• lwt: Fix return values of BPF xmit ops {CVE-2023-53338}
• ubi: ensure that VID header offset + VID header size <= alloc, size {CVE-2023-53265}
• ACPICA: Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage() {CVE-2022-50423}
• Bluetooth: hci_sysfs: Fix attempting to call device_add multiple times {CVE-2022-50419}
• ACPICA: Fix error code path in acpi_ds_call_control_method() {CVE-2022-50411}
• ata: ahci: Match EM_MAX_SLOTS with SATA_PMP_MAX_PORTS {CVE-2022-50315}
• wifi: iwlwifi: dvm: Fix memcpy: detected field-spanning write backtrace {CVE-2023-54286}

• scsi: ses: Fix slab-out-of-bounds in ses_enclosure_data_process() {CVE-2023-53803}
• md/raid1: Fix stack memory use after return in raid1_reshape {CVE-2025-38445}
• ALSA: usb-audio: Fix out-of-bounds read in snd_usb_get_audioformat_uac3() {CVE-2025-38249}
• atm: clip: Fix infinite recursive call of clip_push(). {CVE-2025-38459}
• dm cache: free background tracker's queued work in {CVE-2023-53765}
• drm/vmwgfx: Validate the box size for the snooped cursor {CVE-2022-36280,CVE-2022-50440}
• vsock: Do not allow binding to VMADDR_PORT_ANY {CVE-2025-38618}
• ice: set tx_tstamps when creating new Tx rings via ethtool {CVE-2022-50710}
• sctp: avoid NULL dereference when chunk data buffer is {CVE-2025-40240}
• ip6_vti: fix slab-use-after-free in decode_session6 {CVE-2023-53821}
• wifi: mac80211_hwsim: drop short frames {CVE-2023-53321}
• ext4: add bounds checking in get_max_inline_xattr_value_size() {CVE-2023-53285}
• md/raid10: fix null-ptr-deref in raid10_sync_request {CVE-2023-53832}
• dm flakey: fix a crash with invalid table line {CVE-2023-53786}
• wifi: mt7601u: fix an integer underflow {CVE-2023-53679}
• ext4: fix bug_on in __es_tree_search caused by bad boot loader inode {CVE-2022-50638}
• ext4: add EXT4_IGET_BAD flag to prevent unexpected bad inode
• ext4: add helper to check quota inums
• ext4: fix bug_on in __es_tree_search caused by bad quota inode
• quota: Factor out setup of quota inode
• USB: usbtmc: Fix direction for 0-length ioctl control messages {CVE-2023-53761}
• ACPICA: Add AML_NO_OPERAND_RESOLVE flag to Timer {CVE-2023-53395}
• drm/amd/display: Check num_valid_sets before accessing reader_wm_sets[] {CVE-2024-46815}
• Bluetooth: btsdio: fix use after free bug in btsdio_remove due to race condition {CVE-2023-1989}
• nvmet: avoid potential UAF in nvmet_req_complete() {CVE-2023-53116}
• wifi: brcmfmac: Fix potential stack-out-of-bounds in brcmf_c_preinit_dcmds() {CVE-2022-50258}
• dm raid: fix address sanitizer warning in raid_status {CVE-2022-50084}
• vt: Clear selection before changing the font {CVE-2022-49948}
• ipvs: fix WARNING in ip_vs_app_net_cleanup() {CVE-2022-49917}
• capabilities: fix undefined behavior in bit shift for CAP_TO_MASK {CVE-2022-49870}
• ata: libata-transport: fix double ata_host_put() in ata_tport_add() {CVE-2022-49826}
• ath9k_htc: fix potential out of bounds access with invalid rxstatus->rs_keyix {CVE-2022-49503}
• selinux: Add boundary check in put_entry() {CVE-2022-50200}
• rbd: avoid use-after-free in do_rbd_add() when rbd_dev_create() fails {CVE-2023-53307}
• RDMA/mlx5: Return the firmware result upon destroying QP/RQ {CVE-2023-53286}
• sched/fair: Don't balance task to its current running CPU {CVE-2023-53215}
• powercap: intel_rapl: fix UBSAN shift-out-of-bounds issue {CVE-2022-50366}
• ACPI: tables: FPDT: Don't call acpi_os_map_memory() on invalid phys address {CVE-2022-50320}
• wifi: ath9k: Fix use-after-free in ath9k_hif_usb_disconnect() {CVE-2022-50881}
• slcan: Don't transmit uninitialized stack data in padding {CVE-2020-11494}
• media: dvb-frontends: avoid stack overflow warnings with clang {CVE-2024-27075}
• PCI/ASPM: Disable ASPM on MFD function removal to avoid use-after-free {CVE-2023-53446}
• cifs: Fix warning and UAF when destroy the MR list {CVE-2023-53427}
• sctp: fix a potential overflow in sctp_ifwdtsn_skip {CVE-2023-53372}
• md/raid10: check slab-out-of-bounds in md_bitmap_get_counter {CVE-2023-53357}
• lwt: Fix return values of BPF xmit ops {CVE-2023-53338}
• ubi: ensure that VID header offset + VID header size <= alloc, size {CVE-2023-53265}
• ACPICA: Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage() {CVE-2022-50423}
• Bluetooth: hci_sysfs: Fix attempting to call device_add multiple times {CVE-2022-50419}
• ACPICA: Fix error code path in acpi_ds_call_control_method() {CVE-2022-50411}
• ata: ahci: Match EM_MAX_SLOTS with SATA_PMP_MAX_PORTS {CVE-2022-50315}
• wifi: iwlwifi: dvm: Fix memcpy: detected field-spanning write backtrace {CVE-2023-54286}

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

dm cache: free background tracker's queued work in btracker_destroy

Otherwise the kernel can BUG with:

[ 2245.426978] ============================================================================= [ 2245.435155] BUG bt_work (Tainted: G B W ): Objects remaining in bt_work on __kmem_cache_shutdown() [ 2245.445233] ----------------------------------------------------------------------------- [ 2245.445233] [ 2245.454879] Slab 0x00000000b0ce2b30 objects=64 used=2 fp=0x000000000a3c6a4e flags=0x17ffffc0000200(slab|node=0|zone=2|lastcpupid=0x1fffff) [ 2245.467300] CPU: 7 PID: 10805 Comm: lvm Kdump: loaded Tainted: G B W 6.0.0-rc2 #19 [ 2245.476078] Hardware name: Dell Inc. PowerEdge R7525/0590KW, BIOS 2.5.6 10/06/2021 [ 2245.483646] Call Trace: [ 2245.486100] <TASK> [ 2245.488206] dump_stack_lvl+0x34/0x48 [ 2245.491878] slab_err+0x95/0xcd [ 2245.495028] __kmem_cache_shutdown.cold+0x31/0x136 [ 2245.499821] kmem_cache_destroy+0x49/0x130 [ 2245.503928] btracker_destroy+0x12/0x20 [dm_cache] [ 2245.508728] smq_destroy+0x15/0x60 [dm_cache_smq] [ 2245.513435] dm_cache_policy_destroy+0x12/0x20 [dm_cache] [ 2245.518834] destroy+0xc0/0x110 [dm_cache] [ 2245.522933] dm_table_destroy+0x5c/0x120 [dm_mod] [ 2245.527649] __dm_destroy+0x10e/0x1c0 [dm_mod] [ 2245.532102] dev_remove+0x117/0x190 [dm_mod] [ 2245.536384] ctl_ioctl+0x1a2/0x290 [dm_mod] [ 2245.540579] dm_ctl_ioctl+0xa/0x20 [dm_mod] [ 2245.544773] __x64_sys_ioctl+0x8a/0xc0 [ 2245.548524] do_syscall_64+0x5c/0x90 [ 2245.552104] ? syscall_exit_to_user_mode+0x12/0x30 [ 2245.556897] ? do_syscall_64+0x69/0x90 [ 2245.560648] ? do_syscall_64+0x69/0x90 [ 2245.564394] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 2245.569447] RIP: 0033:0x7fe52583ec6b ... [ 2245.646771] ------------[ cut here ]------------ [ 2245.651395] kmem_cache_destroy bt_work: Slab cache still has objects when called from btracker_destroy+0x12/0x20 [dm_cache] [ 2245.651408] WARNING: CPU: 7 PID: 10805 at mm/slab_common.c:478 kmem_cache_destroy+0x128/0x130

Found using: lvm2-testsuite --only "cache-single-split.sh"

Ben bisected and found that commit 0495e337b703 ("mm/slab_common: Deleting kobject in kmem_cache_destroy() without holding slab_mutex/cpu_hotplug_lock") first exposed dm-cache's incomplete cleanup of its background tracker work objects.

In the Linux kernel, the following vulnerability has been resolved: dm cache: free background tracker's queued work in btracker_destroy Otherwise the kernel can BUG with: [ 2245.426978] ============================================================================= [ 2245.435155] BUG bt_work (Tainted: G B W ): Objects remaining in bt_work on __kmem_cache_shutdown() [ 2245.445233] ----------------------------------------------------------------------------- [ 2245.445233] [ 2245.454879] Slab 0x00000000b0ce2b30 objects=64 used=2 fp=0x000000000a3c6a4e flags=0x17ffffc0000200(slab|node=0|zone=2|lastcpupid=0x1fffff) [ 2245.467300] CPU: 7 PID: 10805 Comm: lvm Kdump: loaded Tainted: G B W 6.0.0-rc2 #19 [ 2245.476078] Hardware name: Dell Inc. PowerEdge R7525/0590KW, BIOS 2.5.6 10/06/2021 [ 2245.483646] Call Trace: [ 2245.486100] <TASK> [ 2245.488206] dump_stack_lvl+0x34/0x48 [ 2245.491878] slab_err+0x95/0xcd [ 2245.495028] __kmem_cache_shutdown.cold+0x31/0x136 [ 2245.499821] kmem_cache_destroy+0x49/0x130 [ 2245.503928] btracker_destroy+0x12/0x20 [dm_cache] [ 2245.508728] smq_destroy+0x15/0x60 [dm_cache_smq] [ 2245.513435] dm_cache_policy_destroy+0x12/0x20 [dm_cache] [ 2245.518834] destroy+0xc0/0x110 [dm_cache] [ 2245.522933] dm_table_destroy+0x5c/0x120 [dm_mod] [ 2245.527649] __dm_destroy+0x10e/0x1c0 [dm_mod] [ 2245.532102] dev_remove+0x117/0x190 [dm_mod] [ 2245.536384] ctl_ioctl+0x1a2/0x290 [dm_mod] [ 2245.540579] dm_ctl_ioctl+0xa/0x20 [dm_mod] [ 2245.544773] __x64_sys_ioctl+0x8a/0xc0 [ 2245.548524] do_syscall_64+0x5c/0x90 [ 2245.552104] ? syscall_exit_to_user_mode+0x12/0x30 [ 2245.556897] ? do_syscall_64+0x69/0x90 [ 2245.560648] ? do_syscall_64+0x69/0x90 [ 2245.564394] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 2245.569447] RIP: 0033:0x7fe52583ec6b ... [ 2245.646771] ------------[ cut here ]------------ [ 2245.651395] kmem_cache_destroy bt_work: Slab cache still has objects when called from btracker_destroy+0x12/0x20 [dm_cache] [ 2245.651408] WARNING: CPU: 7 PID: 10805 at mm/slab_common.c:478 kmem_cache_destroy+0x128/0x130 Found using: lvm2-testsuite --only "cache-single-split.sh" Ben bisected and found that commit 0495e337b703 ("mm/slab_common: Deleting kobject in kmem_cache_destroy() without holding slab_mutex/cpu_hotplug_lock") first exposed dm-cache's incomplete cleanup of its background tracker work objects.

Root has patched CVE-2023-53765 in the linux package for Root:Debian:11. Multiple fixed versions available.

Root has patched CVE-2023-53765 in the linux package for Root:Ubuntu:22.04. Multiple fixed versions available.

The SUSE Linux Enterprise 12 SP5 kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2022-49604,CVE-2025-40074: ip: Fix data-races around sysctl_ip_fwd_use_pmtu (bsc#1238414 bsc#1252794).
• CVE-2022-50527: drm/amdgpu: Fix size validation for non-exclusive domains (v4) (bsc#1251738).
• CVE-2022-50625: serial: amba-pl011: avoid SBSA UART accessing DMACR register (bsc#1254559).
• CVE-2022-50630: mm: hugetlb: fix UAF in hugetlb_handle_userfault (bsc#1254785).
• CVE-2022-50656: nfc: pn533: Clear nfc_target before being used (bsc#1254745).
• CVE-2022-50678: wifi: brcmfmac: fix invalid address access when enabling SCAN log level (bsc#1254902).
• CVE-2022-50700: wifi: ath10k: Delay the unmapping of the buffer (bsc#1255576).
• CVE-2023-53454: HID: multitouch: Correct devm device reference for hidinput input_dev name (bsc#1250759).
• CVE-2023-53718: ring-buffer: Do not swap cpu_buffer during resize process (bsc#1252564).
• CVE-2023-53748: media: mediatek: vcodec: Fix potential array out-of-bounds in decoder queue_setup (bsc#1254907).
• CVE-2023-53765: dm cache: free background tracker's queued work in btracker_destroy (bsc#1254912).
• CVE-2023-53781: smc: Fix use-after-free in tcp_write_timer_handler() (bsc#1254751).
• CVE-2023-53788: ALSA: hda/ca0132: fixup buffer overrun at tuning_ctl_set() (bsc#1254917).
• CVE-2023-53819: amdgpu: validate offset_in_bo of drm_amdgpu_gem_va (bsc#1254712).
• CVE-2023-53850: iavf: use internal state to free traffic IRQs (bsc#1254677).
• CVE-2023-54120: Bluetooth: Fix race condition in hidp_session_thread (bsc#1256133).
• CVE-2023-54214: Bluetooth: L2CAP: Fix potential user-after-free (bsc#1255954).
• CVE-2023-54236: net/net_failover: fix txq exceeding warning (bsc#1255922).
• CVE-2023-54286: wifi: iwlwifi: dvm: Fix memcpy: detected field-spanning write backtrace (bsc#1255803).
• CVE-2023-54300: wifi: ath9k: avoid referencing uninit memory in ath9k_wmi_ctrl_rx (bsc#1255790).
• CVE-2025-38085: mm/hugetlb: fix huge_pmd_unshare() vs GUP-fast race (bsc#1245431 bsc#1245499).
• CVE-2025-38336: ata: pata_via: Force PIO for ATAPI devices on VT6415/VT6330 (bsc#1246370).
• CVE-2025-38728: smb3: fix for slab out of bounds on mount to ksmbd (bsc#1249256).
• CVE-2025-40006: mm/hugetlb: fix folio is still mapped when deleted (bsc#1252342).
• CVE-2025-40035: Input: uinput - zero-initialize uinput_ff_upload_compat to avoid info leak (bsc#1252866).
• CVE-2025-40053: net: dlink: handle copy_thresh allocation failure (bsc#1252808).
• CVE-2025-40064: smc: Fix use-after-free in __pnet_find_base_ndev() (bsc#1252845).
• CVE-2025-40075: tcp_metrics: use dst_dev_net_rcu() (bsc#1252795).
• CVE-2025-40081: perf: arm_spe: Prevent overflow in PERF_IDX2OFF() (bsc#1252776).
• CVE-2025-40110: drm/vmwgfx: Fix a null-ptr access in the cursor snooper (bsc#1253275).
• CVE-2025-40123: bpf: Enforce expected_attach_type for tailcall compatibility (bsc#1253365).
• CVE-2025-40135: ipv6: use RCU in ip6_xmit() (bsc#1253342).
• CVE-2025-40139: smc: Use __sk_dst_get() and dst_dev_rcu() in in smc_clc_prfx_set() (bsc#1253409).
• CVE-2025-40149: tls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock() (bsc#1253355).
• CVE-2025-40153: mm: hugetlb: avoid soft lockup when mprotect to large memory area (bsc#1253408).
• CVE-2025-40158: ipv6: use RCU in ip6_output() (bsc#1253402).
• CVE-2025-40160: xen/events: Cleanup find_virq() return codes (bsc#1253400).
• CVE-2025-40164: usbnet: Fix using smp_processor_id() in preemptible code warnings (bsc#1253407).
• CVE-2025-40167: ext4: detect invalid INLINE_DATA + EXTENTS flag combination (bsc#1253458).
• CVE-2025-40168: smc: Use __sk_dst_get() and dst_dev_rcu() in smc_clc_prfx_match() (bsc#1253427).
• CVE-2025-40170: net: use dst_dev_rcu() in sk_setup_caps() (bsc#1253413).
• CVE-2025-40178: pid: Add a judgment for ns null in pid_nr_ns (bsc#1253463).
• CVE-2025-40198: ext4: avoid potential buffer over-read in parse_apply_sb_mount_options() (bsc#1253453). -…

In the Linux kernel, the following vulnerability has been resolved: dm cache: free background tracker's queued work in btracker_destroy Otherwise the kernel can BUG with: [ 2245.426978] ============================================================================= [ 2245.435155] BUG bt_work (Tainted: G B W ): Objects remaining in bt_work on __kmem_cache_shutdown() [ 2245.445233] ----------------------------------------------------------------------------- [ 2245.445233] [ 2245.454879] Slab 0x00000000b0ce2b30 objects=64 used=2 fp=0x000000000a3c6a4e flags=0x17ffffc0000200(slab|node=0|zone=2|lastcpupid=0x1fffff) [ 2245.467300] CPU: 7 PID: 10805 Comm: lvm Kdump: loaded Tainted: G B W 6.0.0-rc2 #19 [ 2245.476078] Hardware name: Dell Inc. PowerEdge R7525/0590KW, BIOS 2.5.6 10/06/2021 [ 2245.483646] Call Trace: [ 2245.486100] <TASK> [ 2245.488206] dump_stack_lvl+0x34/0x48 [ 2245.491878] slab_err+0x95/0xcd [ 2245.495028] __kmem_cache_shutdown.cold+0x31/0x136 [ 2245.499821] kmem_cache_destroy+0x49/0x130 [ 2245.503928] btracker_destroy+0x12/0x20 [dm_cache] [ 2245.508728] smq_destroy+0x15/0x60 [dm_cache_smq] [ 2245.513435] dm_cache_policy_destroy+0x12/0x20 [dm_cache] [ 2245.518834] destroy+0xc0/0x110 [dm_cache] [ 2245.522933] dm_table_destroy+0x5c/0x120 [dm_mod] [ 2245.527649] __dm_destroy+0x10e/0x1c0 [dm_mod] [ 2245.532102] dev_remove+0x117/0x190 [dm_mod] [ 2245.536384] ctl_ioctl+0x1a2/0x290 [dm_mod] [ 2245.540579] dm_ctl_ioctl+0xa/0x20 [dm_mod] [ 2245.544773] __x64_sys_ioctl+0x8a/0xc0 [ 2245.548524] do_syscall_64+0x5c/0x90 [ 2245.552104] ? syscall_exit_to_user_mode+0x12/0x30 [ 2245.556897] ? do_syscall_64+0x69/0x90 [ 2245.560648] ? do_syscall_64+0x69/0x90 [ 2245.564394] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 2245.569447] RIP: 0033:0x7fe52583ec6b ... [ 2245.646771] ------------[ cut here ]------------ [ 2245.651395] kmem_cache_destroy bt_work: Slab cache still has objects when called from btracker_destroy+0x12/0x20 [dm_cache] [ 2245.651408] WARNING: CPU: 7 PID: 10805 at mm/slab_common.c:478 kmem_cache_destroy+0x128/0x130 Found using: lvm2-testsuite --only "cache-single-split.sh" Ben bisected and found that commit 0495e337b703 ("mm/slab_common: Deleting kobject in kmem_cache_destroy() without holding slab_mutex/cpu_hotplug_lock") first exposed dm-cache's incomplete cleanup of its background tracker work objects.