CVE-2022-50889
Unknown Unknown - Not Provided

Use-After-Free Vulnerability in Linux Kernel dm_integrity Component

Publication date: 2025-12-30

Last updated on: 2025-12-30

Assigner: kernel.org

Description
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().

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Meta Information

Published
2025-12-30
Last Modified
2025-12-30
Generated
2026-07-06
AI Q&A
2025-12-30
EPSS Evaluated
2026-07-05
NVD
CVE-2022-50889
EUVD
EUVD-2022-55907

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *

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Exploitability

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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability is a Use-After-Free (UAF) issue in the Linux kernel's dm_integrity module, specifically in the dm_integrity_dtr() function. It also occurs when dm_resume() and dm_destroy() run concurrently. The problem involves improper handling of timers, which can lead to accessing memory that has already been freed.

Impact Analysis

The Use-After-Free vulnerability in the dm_integrity module can potentially lead to system instability, crashes, or exploitation by attackers to execute arbitrary code or cause denial of service. This can affect the reliability and security of systems using the affected Linux kernel.

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