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Vulnerability record · CVE-2022-50496 · published 4 October 2025

CVE-2022-50496: Linux kernel use after free vulnerability

Linux · Linux Kernel

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().

7.8 CVSS 3.1 High EPSS 0.17% · top 94.6% CWE-416 · Use after free
7.8CVSS 3.1 base score
0.17%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
9References
17 Jun 2026Last modified by NVD

Description

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().

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://git.kernel.org/stable/c/034cbc8d3b47a56acd89453c29632a9c117de09d Patch
https://git.kernel.org/stable/c/2b17026685a270b2beaf1cdd9857fcedd3505c7e Patch
https://git.kernel.org/stable/c/2f097dfac7579fd84ff98eb1d3acd41d53a485f3 Patch
https://git.kernel.org/stable/c/4d20032dd90664de09f2902a7ea49ae2f7771746 Patch
https://git.kernel.org/stable/c/6a3e412c2ab131c54945327a7676b006f000a209 Patch
https://git.kernel.org/stable/c/6a459d8edbdbe7b24db42a5a9f21e6aa9e00c2aa Patch
https://git.kernel.org/stable/c/6ac4f36910764cb510bafc4c3768544f86ca48ca Patch
https://git.kernel.org/stable/c/993406104d2b28fe470126a062ad37a1e21e792e Patch
https://git.kernel.org/stable/c/d2a0b298ebf83ab6236f66788a3541e91ce75a70 Patch

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Source: NIST National Vulnerability Database (record CVE-2022-50496), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.