drm/syncobj: Fix memory leak in drm_syncobj_find_fence()

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Summary

CVECVE-2026-74393
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-15 06:22:41 UTC
Updated2026-08-15 06:22:41 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: drm/syncobj: Fix memory leak in drm_syncobj_find_fence() Commit 18226ba52159 ("drm/syncobj: reject invalid flags in drm_syncobj_find_fence") forgot to take into account the fact that drm_syncobj_find() takes a reference to syncobj and returns early without dropping the reference, leading to memory leaks. Reported by: Sam Spencer <[email protected]>

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 18226ba52159257d4c2f777a168cc09adb3c1ac0 e245f3491bf30a758786a4424854f61fee472308 git Not specified
CNA Linux Linux affected 18226ba52159257d4c2f777a168cc09adb3c1ac0 7471006cd854d159723344be809e8287a2d75502 git Not specified
CNA Linux Linux affected 18226ba52159257d4c2f777a168cc09adb3c1ac0 5c5994a1204743fa55e4c198ed93a6c36f21cd1f git Not specified
CNA Linux Linux affected 18226ba52159257d4c2f777a168cc09adb3c1ac0 e5b93bd6fdb92aa5e4689715d7e8487d9ce66a38 git Not specified
CNA Linux Linux affected 6.9 Not specified
CNA Linux Linux unaffected 6.9 semver Not specified
CNA Linux Linux unaffected 6.12.97 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.40 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.5 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/7471006cd854d159723344be809e8287a2d75502 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/e5b93bd6fdb92aa5e4689715d7e8487d9ce66a38 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/5c5994a1204743fa55e4c198ed93a6c36f21cd1f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/e245f3491bf30a758786a4424854f61fee472308 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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