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Vulnerabilities
CVE-2023-53765
CVE-2023-53765
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.
Published Dec 9, 2025
Components Impacted
Components Impacted
Security Details
Security Details
Sonatype Research
Sonatype Research
Ecosystem
Package
Version
rpm
kernel
2.6.32-131.0.15.el6
rpm
kernel
2.6.32-131.12.1.el6
rpm
kernel
2.6.32-131.17.1.el6
rpm
kernel
2.6.32-131.2.1.el6
rpm
kernel
2.6.32-131.21.1.el6
rpm
kernel
2.6.32-131.4.1.el6
rpm
kernel
2.6.32-131.6.1.el6
rpm
kernel
2.6.32-220.13.1.el6
rpm
kernel
2.6.32-220.17.1.el6
rpm
kernel
2.6.32-220.2.1.el6
rpm
kernel
2.6.32-220.23.1.el6
rpm
kernel
2.6.32-220.4.1.el6
rpm
kernel
2.6.32-220.4.2.el6
rpm
kernel
2.6.32-220.7.1.el6
rpm
kernel
2.6.32-220.el6
rpm
kernel
2.6.32-279.1.1.el6
rpm
kernel
2.6.32-279.11.1.el6
rpm
kernel
2.6.32-279.14.1.el6
rpm
kernel
2.6.32-279.19.1.el6
rpm
kernel
2.6.32-279.2.1.el6
rpm
kernel
2.6.32-279.22.1.el6
rpm
kernel
2.6.32-279.5.1.el6
rpm
kernel
2.6.32-279.5.2.el6
rpm
kernel
2.6.32-279.9.1.el6
rpm
kernel
2.6.32-279.el6
rpm
kernel
2.6.32-358.0.1.el6
rpm
kernel
2.6.32-358.11.1.el6
rpm
kernel
2.6.32-358.14.1.el6
rpm
kernel
2.6.32-358.18.1.el6
rpm
kernel
2.6.32-358.2.1.el6
rpm
kernel
2.6.32-358.23.2.el6
rpm
kernel
2.6.32-358.6.1.el6
rpm
kernel
2.6.32-358.6.2.el6
rpm
kernel
2.6.32-358.el6
rpm
kernel
2.6.32-431.1.2.el6
rpm
kernel
2.6.32-431.11.2.el6
rpm
kernel
2.6.32-431.17.1.el6
rpm
kernel
2.6.32-431.20.3.el6
rpm
kernel
2.6.32-431.20.5.el6
rpm
kernel
2.6.32-431.23.3.el6
rpm
kernel
2.6.32-431.29.2.el6
rpm
kernel
2.6.32-431.3.1.el6
rpm
kernel
2.6.32-431.5.1.el6
rpm
kernel
2.6.32-431.el6
rpm
kernel
2.6.32-504.1.3.el6
rpm
kernel
2.6.32-504.12.2.el6
rpm
kernel
2.6.32-504.16.2.el6
rpm
kernel
2.6.32-504.23.4.el6
rpm
kernel
2.6.32-504.3.3.el6
rpm
kernel
2.6.32-504.30.3.el6
1-50 of 683
https://lore.kernel.org/linux-cve-announce/2025120845-CVE-2023-53765-0317@gregkh/
CVSS Score
Medium
6.8
CVE-2023-53765 | Components Impacted | Sonatype Guide | Sonatype Guide