🛡️ CVE-2023-54324 — kernel

⚪ Unknown ✅ No Known Exploit NVD
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

dm: fix a race condition in retrieve_deps

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

dm: fix a race condition in retrieve_deps

There's a race condition in the multipath target when retrieve_deps

races with multipath_message calling dm_get_device and dm_put_device.

retrieve_deps walks the list of open devices without holding any lock

but multipath may add or remove devices to the list while it is

running. The end result may be memory corruption or use-after-free

memory access.

See this description of a UAF with multipath_message():

https://listman.redhat.com/archives/dm-devel/2022-October/052373.html

Fix this bug by introducing a new rw semaphore "devices_lock". We grab

devices_lock for read in retrieve_deps and we grab it for write in

dm_get_device and dm_put_device.

Affected software

CVE-2023-54324 is recorded against 2 packages.

  • kernel (from 6.2.0 up to 6.5.5)
  • unknown

Timeline and source

Published on 30 December 2025 and last revised on 12 August 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
github.com (Advisory)
nvd.nist.gov (Advisory)
git.kernel.org (Package)

CVE-2023-54324 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2025-12-30
Updated 2026-08-20
Modified 2026-08-12
Fix URL N/A

Affected Packages

Software From version Fixed in
kernel 6.2.0 6.5.5
unknown — —

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