Riskcovery

CVE-2026-98140

ntfs: fix kmap_local leak in write_mft_record_nolock() error paths

State
Published
Severity
Not scored
Published
Sep 25, 2026
Updated
Oct 19, 2026
Reserved
Sep 25, 2026

Read the record on cve.org

Description

In 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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 115380f9a2f9675c7924563cbba70d40cae8fb81 to before 5d7f7bf8fba8cf563b42b44aa4ab3d9928ac480cAffected
  • 115380f9a2f9675c7924563cbba70d40cae8fb81 to before cf06dcd572845723821b54a608fc2da995c3c8e2Affected
LinuxLinux
  • 7.1Affected
  • before 7.1Not affected
  • 7.2.7 through 7.2.*Not affected
  • 7.3 and laterNot affected

References

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