The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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. (CVE-2023-53765)

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Detections

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Linux Distros Unpatched Vulnerability : CVE-2023-53765

medium Nessus Plugin ID 277646

Version 1.8

Version 1.7

Version 1.5

Version 1.4

Version 1.3

Version 1.2

Version 1.1

Version 1.8 Jan 21, 2026, 10:50 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202601211050
Version 1.7 Jan 15, 2026, 2:04 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202601151404
Version 1.5 Jan 10, 2026, 7:58 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202601101958
Version 1.4 Dec 11, 2025, 12:59 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202512111259
Version 1.3 Dec 10, 2025, 9:29 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202512100929
Version 1.2 Dec 9, 2025, 2:31 AM CVSS metrics ("CVSSv2 score" set to 6.6) CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:L/AC:L/Au:N/C:N/I:C/A:C") Detection (updated detection logic) Plugin metadata Plugin Feed: 202512090231
Version 1.1 Dec 8, 2025, 6:20 PM New Plugin Feed: 202512081820