drm/amd/display: Check for tg ops in dce110_set_avmute

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-74732
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-22 16:16:48 UTC
Updated2026-08-22 16:16:48 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Check for tg ops in dce110_set_avmute Some older DCE timing generators do not implement is_tg_enabled in their ops table. Calling it unconditionally when waiting for AV mute frames causes a NULL pointer dereference on Southern Islands dGPUs when turning the display off over HDMI. Check that tg and the required ops exist before waiting for frames. (cherry picked from commit 2686a0c0aaa07bec2e24131835cf27b5fd4935a5)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 853c2d31408bd45dcf92d0eb1f06eb439a56cf04 git Not specified
CNA Linux Linux affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 d089f32d34f821c8f0ef23d5fcd77bd43c1b3b92 git Not specified
CNA Linux Linux affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 5edbb409b0bc5001195f4b7cfca19122361211a1 git Not specified
CNA Linux Linux affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 3141e3d61469bba2624a91c5e2407f110b33b29e git Not specified
CNA Linux Linux affected 6.12.104 semver Not specified
CNA Linux Linux affected 6.18.45 semver Not specified
CNA Linux Linux affected 7.1.9 semver Not specified
CNA Linux Linux unaffected 6.12.104 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.45 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.9 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/853c2d31408bd45dcf92d0eb1f06eb439a56cf04 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/3141e3d61469bba2624a91c5e2407f110b33b29e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/5edbb409b0bc5001195f4b7cfca19122361211a1 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/d089f32d34f821c8f0ef23d5fcd77bd43c1b3b92 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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