accel/amdxdna: Fix iommu domain lifetime race during device removal

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Summary

CVECVE-2026-80608
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-28 08:16:44 UTC
Updated2026-08-28 08:16:44 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: Fix iommu domain lifetime race during device removal When force_iova mode is enabled, amdxdna_remove() frees xdna->domain. If amdxdna_gem_obj_free() is called after device removal, it may attempt to access xdna->domain, resulting in a use-after-free. Fix the race by adding freeing xdna->domain as a managed release action, so its lifetime is managed by DRM and remains valid until all managed resources are released.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected ece3e8980907818c72dc9faa7bbaf40488ef1824 65e7e2b8d71b418439ebc68e80ed3e5a325375d6 git Not specified
CNA Linux Linux affected ece3e8980907818c72dc9faa7bbaf40488ef1824 b4a0500fdf6e61a6c5f92ff2e61bc91578075803 git Not specified
CNA Linux Linux affected 7.1 Not specified
CNA Linux Linux unaffected 7.1 semver Not specified
CNA Linux Linux unaffected 7.1.5 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/b4a0500fdf6e61a6c5f92ff2e61bc91578075803 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/65e7e2b8d71b418439ebc68e80ed3e5a325375d6 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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