drm/xe/oa: Fix exec_queue leak on width check in stream open

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-64021
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-19 16:17:42 UTC
Updated2026-07-19 16:17:42 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: drm/xe/oa: Fix exec_queue leak on width check in stream open In xe_oa_stream_open_ioctl(), when param.exec_q->width > 1 the function returns -EOPNOTSUPP directly, skipping the existing err_exec_q cleanup path. The exec_queue reference obtained by xe_exec_queue_lookup() is leaked. The exec queue holds a reference on the xe_file, which is only dropped during queue teardown. The leaked lookup ref is not on the file's exec_queue xarray, so file close cannot release it. This keeps both the exec queue and the file private state pinned indefinitely. Jump to err_exec_q instead of returning directly so the reference is released. (cherry picked from commit 339fa0be9e4a5d69fa47e91f4a36574224fb478f)

Risk And Classification

EPSS: 0.001660000 probability, percentile 0.061590000 (date 2026-07-20)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected f0ed39830e6064d62f9c5393505677a26569bb56 04ef7592eaadd9ca8f8f66e76452f73525cff819 git Not specified
CNA Linux Linux affected f0ed39830e6064d62f9c5393505677a26569bb56 4b0c4f0c1b133d4bfa31c167200bcda646873328 git Not specified
CNA Linux Linux affected f0ed39830e6064d62f9c5393505677a26569bb56 4d25342543c01310fc4e0cba7cb17c775e2421e2 git Not specified
CNA Linux Linux affected 6.13 Not specified
CNA Linux Linux unaffected 6.13 semver Not specified
CNA Linux Linux unaffected 6.18.34 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.11 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/4d25342543c01310fc4e0cba7cb17c775e2421e2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/4b0c4f0c1b133d4bfa31c167200bcda646873328 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/04ef7592eaadd9ca8f8f66e76452f73525cff819 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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