drm/amd/display: Remove sink usage from DPMS

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Summary

CVECVE-2026-98926
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-23 13:17:13 UTC
Updated2026-10-26 07:17:17 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Remove sink usage from DPMS [Why] stream->sink is optional and can be null, so should always be checked before dereference. Additionally, most of its usage in DPMS sequences is for stream->sink->link, which can be replaced with stream->link, as the two should always be the same. [How] * Replace stream->sink->link in DPMS on/off * Add assert to USB4 BW allocation where sink is required * Avoid inconsistencies in resource access, e.g. don't repeat stream->link after it was already saved to a local variable * Pull out effective VPG calculation to helper getter * Formatting fixes

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 052fa7e8c9a92e3804ba9dba7c2550a9684d3441 0b1eebd359685dd681f6e0df5540a5bb985a27bf git Not specified
CNA Linux Linux affected 052fa7e8c9a92e3804ba9dba7c2550a9684d3441 8fa813b7fd1eccbed13e126166cf764f1f11a7d3 git Not specified
CNA Linux Linux affected 5.3 Not specified
CNA Linux Linux unaffected 5.3 semver Not specified
CNA Linux Linux unaffected 7.2.9 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/0b1eebd359685dd681f6e0df5540a5bb985a27bf 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/8fa813b7fd1eccbed13e126166cf764f1f11a7d3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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