Bug 2348080 (CVE-2022-49485) - CVE-2022-49485 kernel: drm/v3d: Fix null pointer dereference of pointer perfmon
Summary: CVE-2022-49485 kernel: drm/v3d: Fix null pointer dereference of pointer perfmon
Keywords:
Status: NEW
Alias: CVE-2022-49485
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
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Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-02-26 03:16 UTC by OSIDB Bzimport
Modified: 2025-02-27 19:11 UTC (History)
4 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2025-02-26 03:16:55 UTC 
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.
Comment 1 Avinash Hanwate 2025-02-27 19:00:22 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022605-CVE-2022-49485-a8ec@gregkh/T
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