Bug 2426118 (CVE-2022-50889)

Summary: CVE-2022-50889 kernel: dm integrity: Fix UAF in dm_integrity_dtr()
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 2025-12-30 13:10:15 UTC 
In the Linux kernel, the following vulnerability has been resolved:

dm integrity: Fix UAF in dm_integrity_dtr()

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

Therefore, cancelling timer again in dm_integrity_dtr().
Comment 1 Alexander B 2025-12-31 07:57:05 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025123015-CVE-2022-50889-71c4@gregkh/T