ntfs: protect runlist updates with the runlist lock

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-98315
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-06 09:18:23 UTC
Updated2026-10-06 09:18:23 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: ntfs: protect runlist updates with the runlist lock ntfs_non_resident_attr_shrink() calls runlist helpers that require the runlist write lock, but did not hold it while freeing clusters and truncating the runlist. Serialize those operations and the resident conversion with the runlist lock. ntfs_attr_map_cluster() can merge a newly allocated run before updating mapping pairs. If the update fails, free the clusters and restore both the in-memory runlist and on-disk mapping pairs from a saved runlist. Mark the volume in error if either rollback step fails.

Risk And Classification

EPSS: 0.001620000 probability, percentile 0.048420000 (date 2026-10-06)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 495e90fa334828d4119061e2726af51d0a0fb4ed 742797432e8c9b0dd54ecc523c185e26b09d79a0 git Not specified
CNA Linux Linux affected 495e90fa334828d4119061e2726af51d0a0fb4ed 91709ba5d6d709b2b663287b7e871e2c6b480502 git Not specified
CNA Linux Linux affected 7.1 Not specified
CNA Linux Linux unaffected 7.1 semver Not specified
CNA Linux Linux unaffected 7.2.8 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc4 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/742797432e8c9b0dd54ecc523c185e26b09d79a0 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/91709ba5d6d709b2b663287b7e871e2c6b480502 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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