CVE-2022-50492
Unknown Unknown - Not Provided
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Publication date: 2025-10-04

Last updated on: 2025-10-06

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: drm/msm: fix use-after-free on probe deferral The bridge counter was never reset when tearing down the DRM device so that stale pointers to deallocated structures would be accessed on the next tear down (e.g. after a second late bind deferral). Given enough bridges and a few probe deferrals this could currently also lead to data beyond the bridge array being corrupted. Patchwork: https://patchwork.freedesktop.org/patch/502665/
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Meta Information
Published
2025-10-04
Last Modified
2025-10-06
Generated
2026-06-16
AI Q&A
2025-10-04
EPSS Evaluated
2026-06-15
NVD
CVE-2022-50492
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux kernel *
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability is a use-after-free issue in the Linux kernel's drm/msm component. Specifically, the bridge counter was not reset when tearing down the DRM device, which caused stale pointers to deallocated structures to be accessed during subsequent teardowns. This can lead to memory corruption, especially when there are multiple bridges and probe deferrals.

Impact Analysis

The vulnerability can lead to memory corruption in the Linux kernel, which may cause system instability, crashes, or potentially allow an attacker to execute arbitrary code or escalate privileges if exploited.

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