CVE-2022-50496

HIGH

Linux Kernel < 4.9.337 - Use After Free

Title source: rule

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().

References (9)

[Patch] 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

Scores

CVSS v3 7.8

EPSS 0.0001

EPSS Percentile 1.1%

Attack Vector LOCAL

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

Classification

CWE

CWE-416

Status published

Affected Products (9)

linux/linux_kernel < 4.9.337

linux/Kernel < 4.9.337linux

linux/Kernel < 4.14.303linux

linux/Kernel < 4.19.270linux

linux/Kernel < 5.4.229linux

linux/Kernel < 5.10.163linux

linux/Kernel < 5.15.87linux

linux/Kernel < 6.0.18linux

linux/Kernel < 6.1.4linux

Timeline

Published Oct 04, 2025

Tracked Since Feb 18, 2026