ntfs: fix kmap_local leak in write_mft_record_nolock() error paths

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-98140
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-25 11:17:45 UTC
Updated2026-09-25 11:17:45 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: ntfs: fix kmap_local leak in write_mft_record_nolock() error paths write_mft_record_nolock() maps the MFT record folio with kmap_local_folio(), but the pre_write_mst_fixup() and bio_add_folio() failure paths jump to the error label without unmapping it. kmap_local mappings are stack-ordered per task, so leaking one corrupts the nesting for any outer mapping. Unmap the folio on those error paths too.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 115380f9a2f9675c7924563cbba70d40cae8fb81 5d7f7bf8fba8cf563b42b44aa4ab3d9928ac480c git Not specified
CNA Linux Linux affected 115380f9a2f9675c7924563cbba70d40cae8fb81 cf06dcd572845723821b54a608fc2da995c3c8e2 git Not specified
CNA Linux Linux affected 7.1 Not specified
CNA Linux Linux unaffected 7.1 semver Not specified
CNA Linux Linux unaffected 7.2.7 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/cf06dcd572845723821b54a608fc2da995c3c8e2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/5d7f7bf8fba8cf563b42b44aa4ab3d9928ac480c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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