drm/xe/oa: Fix sync entry leak on OA config emit failure

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-80903
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-04 18:17:59 UTC
Updated2026-09-04 18:17:59 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: drm/xe/oa: Fix sync entry leak on OA config emit failure xe_oa_emit_oa_config() releases the sync entries and the syncs array only on its success path. When it fails before the point of no return (fence allocation, config buffer allocation or batch submission), it returns without touching stream->syncs. The stream open path handles such failures in the caller, but xe_oa_config_locked() propagates the error without any cleanup, so the syncs array and the fence references held by the parsed entries are leaked. The next config ioctl overwrites stream->syncs, making the memory unreachable for good. Clean up the parsed syncs when xe_oa_emit_oa_config() fails, matching the cleanup done by the stream open error path. (cherry picked from commit 8af97b3da2cfce04e6b457c6eb17ed3c1daf912b)

Risk And Classification

EPSS: 0.001560000 probability, percentile 0.050940000 (date 2026-09-07)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected f0ab9cd205d852a9024b73c71c8d8b217a04e8f0 fcf7943b0a38568c547d7b5702de1d8190480616 git Not specified
CNA Linux Linux affected 9920c8b88c5cf2e44f4ff508dd3c0c96e4364db0 948f346fe36e1d02353c3d61b1f6b66c6af91996 git Not specified
CNA Linux Linux affected 9920c8b88c5cf2e44f4ff508dd3c0c96e4364db0 027150e24e173a5dffe7f5ab3a6600618f634da2 git Not specified
CNA Linux Linux affected 9920c8b88c5cf2e44f4ff508dd3c0c96e4364db0 8d33c4987cd162527375a3905017ae129ba7c3fe git Not specified
CNA Linux Linux affected 6.12.18 6.12.105 semver Not specified
CNA Linux Linux affected 6.13 Not specified
CNA Linux Linux unaffected 6.13 semver Not specified
CNA Linux Linux unaffected 6.12.105 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.46 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.10 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/fcf7943b0a38568c547d7b5702de1d8190480616 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/027150e24e173a5dffe7f5ab3a6600618f634da2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/8d33c4987cd162527375a3905017ae129ba7c3fe 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/948f346fe36e1d02353c3d61b1f6b66c6af91996 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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