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CVE-2022-50496

Updated on 04 Oct 2025

Severity

7.8 High severity

Details

CVSS score
7.8
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE ID
Links
NISTCIRCLRHELUbuntu

Overview

About vulnerability

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().

Details

Affected product:
CentOS 8.4 ELS , CentOS 8.5 ELS , Ubuntu 16.04 ELS
Affected packages:
linux @ 4.4.0 (+3 more)

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().

Fixes