drm/xe/sync: Fix user fence leak on alloc failure

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Summary

CVECVE-2026-43396
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-08 15:16:51 UTC
Updated2026-05-12 14:10:27 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: drm/xe/sync: Fix user fence leak on alloc failure When dma_fence_chain_alloc() fails, properly release the user fence reference to prevent a memory leak. (cherry picked from commit a5d5634cde48a9fcd68c8504aa07f89f175074a0)

Risk And Classification

EPSS: 0.000170000 probability, percentile 0.041320000 (date 2026-05-12)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 0995c2fc39b0f998d40f5d276f67ae22fc1c37c3 05edc78eb4699e8e000a62aaa8dace50a17e19e3 git Not specified
CNA Linux Linux affected 0995c2fc39b0f998d40f5d276f67ae22fc1c37c3 f8f90b33934b307f6e4599b9fae38aa1ee5441a7 git Not specified
CNA Linux Linux affected 0995c2fc39b0f998d40f5d276f67ae22fc1c37c3 0879c3f04f67e2a1677c25dcc24669ce21eb6a6c git Not specified
CNA Linux Linux affected 6.18 Not specified
CNA Linux Linux unaffected 6.18 semver Not specified
CNA Linux Linux unaffected 6.18.20 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.9 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/05edc78eb4699e8e000a62aaa8dace50a17e19e3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/f8f90b33934b307f6e4599b9fae38aa1ee5441a7 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/0879c3f04f67e2a1677c25dcc24669ce21eb6a6c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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