iommu/vt-d: Block PASID attachment to nested domain with dirty tracking

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Summary

CVECVE-2026-53372
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-19 09:17:02 UTC
Updated2026-07-19 09:17:02 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Block PASID attachment to nested domain with dirty tracking Kernel lacks dirty tracking support on nested domain attached to PASID, fails the attachment early if nesting parent domain is dirty tracking configured, otherwise dirty pages would be lost.

Risk And Classification

EPSS: 0.001660000 probability, percentile 0.062360000 (date 2026-07-20)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 67f6f56b59126b3bf4fc6f4ea564e450fcfcf9f6 3ea9ce757bd3de955b56e7bc5672fc479e40b045 git Not specified
CNA Linux Linux affected 67f6f56b59126b3bf4fc6f4ea564e450fcfcf9f6 9009c1af5458322469fa9a4371081a4449c5947d git Not specified
CNA Linux Linux affected 67f6f56b59126b3bf4fc6f4ea564e450fcfcf9f6 cc5bd898ff70710ffc41cd8e5c2741cb64750047 git Not specified
CNA Linux Linux affected 6.13 Not specified
CNA Linux Linux unaffected 6.13 semver Not specified
CNA Linux Linux unaffected 6.18.30 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.7 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/9009c1af5458322469fa9a4371081a4449c5947d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/cc5bd898ff70710ffc41cd8e5c2741cb64750047 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/3ea9ce757bd3de955b56e7bc5672fc479e40b045 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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