Bug 2402308 (CVE-2022-50535)

Summary: CVE-2022-50535 kernel: drm/amd/display: Fix potential null-deref in dm_resume
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Version: unspecifiedKeywords: Security
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OS: Linux   
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Description OSIDB Bzimport 2025-10-07 16:08:38 UTC 
In the Linux kernel, the following vulnerability has been resolved:

drm/amd/display: Fix potential null-deref in dm_resume

[Why]
Fixing smatch error:
dm_resume() error: we previously assumed 'aconnector->dc_link' could be null

[How]
Check if dc_link null at the beginning of the loop,
so further checks can be dropped.
Comment 1 Jon Moroney 2025-10-07 18:50:41 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025100753-CVE-2022-50535-a9a9@gregkh/T