Detections
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Echo: linux: security update to 6.12.94-1

high Tenable Cloud Security Plugin ID 464902

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - In the Linux kernel, the following vulnerability has been resolved: fs/mbcache: cancel shrink work before
 destroying the cache mb_cache_destroy() calls shrinker_free() and then frees all cache entries and the
 cache itself, but it does not cancel the pending c_shrink_work work item first. If mb_cache_entry_create()
 schedules c_shrink_work via schedule_work() and the work item is still pending or running when
 mb_cache_destroy() runs, mb_cache_shrink_worker() will access the cache after its memory has been freed,
 causing a use-after-free. This is only reachable by a privileged user (root or CAP_SYS_ADMIN) who can
 trigger the last put of a mounted ext2/ext4/ocfs2 filesystem. Cancel the work item with cancel_work_sync()
 before calling shrinker_free(), ensuring the worker has finished and will not be rescheduled before the
 cache is torn down. (CVE-2026-53129)

Solution

Update the linux library and its related packages to version 6.12.94-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-53129

Plugin Details

Severity: High

ID: 464902

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.16

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2026-53129

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/25/2026

Vulnerability Publication Date: 6/22/2026

Reference Information

CVE: CVE-2026-53129