Bug 2401534 (CVE-2022-50496) - CVE-2022-50496 kernel: dm cache: Fix UAF in destroy()
Summary: CVE-2022-50496 kernel: dm cache: Fix UAF in destroy()
Keywords:
Status: NEW
Alias: CVE-2022-50496
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-10-04 16:06 UTC by OSIDB Bzimport
Modified: 2025-10-17 10:21 UTC (History)
0 users

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Description OSIDB Bzimport 2025-10-04 16:06:03 UTC 
In the Linux kernel, the following vulnerability has been resolved:

dm cache: Fix UAF in destroy()

Dm_cache also has the same UAF problem when dm_resume()
and dm_destroy() are concurrent.

Therefore, cancelling timer again in destroy().
Comment 1 Alexander B 2025-10-06 13:21:25 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025100419-CVE-2022-50496-6e44@gregkh/T
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