Bug 2516919 (CVE-2026-74393) - CVE-2026-74393 kernel: drm/syncobj: Fix memory leak in drm_syncobj_find_fence()
Summary: CVE-2026-74393 kernel: drm/syncobj: Fix memory leak in drm_syncobj_find_fence()
Keywords:
Status: NEW
Alias: CVE-2026-74393
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: 2026-08-15 06:40 UTC by OSIDB Bzimport
Modified: 2026-08-20 20:36 UTC (History)
2 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-08-15 06:40:23 UTC 
In 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 <sam.spencer>
Comment 1 Keith Grant 2026-08-20 20:32:24 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026081507-CVE-2026-74393-6160@gregkh/T
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