CVE-2022-49485

drm/v3d: Fix null pointer dereference of pointer perfmon

State: Published
Severity: 5.5 Medium
Published: Feb 26, 2025
Updated: May 11, 2026
Reserved: Feb 26, 2025

Description

In the Linux kernel, the following vulnerability has been resolved:

drm/v3d: Fix null pointer dereference of pointer perfmon

In the unlikely event that pointer perfmon is null the WARN_ON return path occurs after the pointer has already been deferenced. Fix this by only dereferencing perfmon after it has been null checked.

Scores

CVSS	Score	Vector	Source
3.1	5.5 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

CWE-476 NULL Pointer Dereference

Affected Products

Product	Versions
LinuxLinux	26a4dc29b74a137f45665089f6d3d633fcc9b662 to before 4be045434923e549a50846a066a04b7b6c1d6d33Affected 26a4dc29b74a137f45665089f6d3d633fcc9b662 to before 1df8f8901babcc8c8eea2c067179e455b5c828fdAffected 26a4dc29b74a137f45665089f6d3d633fcc9b662 to before 3b72deb784a7d4ae8519a5c584cd87c4b57aa6c8Affected 26a4dc29b74a137f45665089f6d3d633fcc9b662 to before ce7a1ecf3f9f1fccaf67295307614511d8e11b13Affected
LinuxLinux	5.15Affected before 5.15Not affected 5.15.46 through 5.15.Not affected 5.17.14 through 5.17.Not affected 5.18.3 through 5.18.*Not affected 5.19 and laterNot affected

References

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