Bug 2401534 (CVE-2022-50496)

Summary: CVE-2022-50496 kernel: dm cache: Fix UAF in destroy()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Version: unspecifiedKeywords: Security
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OS: Linux   
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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