CVE-2026-98140 (GCVE-0-2026-98140)

Vulnerability from cvelistv5 – Published: 2026-09-25 10:36 – Updated: 2026-09-25 10:36
VLAI
Title
ntfs: fix kmap_local leak in write_mft_record_nolock() error paths
Summary
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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 115380f9a2f9675c7924563cbba70d40cae8fb81 , < 5d7f7bf8fba8cf563b42b44aa4ab3d9928ac480c (git)
Affected: 115380f9a2f9675c7924563cbba70d40cae8fb81 , < cf06dcd572845723821b54a608fc2da995c3c8e2 (git)
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Linux Linux Affected: 7.1
Unaffected: 0 , < 7.1 (semver)
Unaffected: 7.2.7 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc2 , ≤ * (original_commit_for_fix)
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    "datePublished": "2026-09-25T10:36:16.580Z",
    "dateReserved": "2026-09-25T10:25:14.319Z",
    "dateUpdated": "2026-09-25T10:36:16.580Z",
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nntfs: fix kmap_local leak in write_mft_record_nolock() error paths\n\nwrite_mft_record_nolock() maps the MFT record folio with\nkmap_local_folio(), but the pre_write_mst_fixup() and\nbio_add_folio() failure paths jump to the error label without\nunmapping it. kmap_local mappings are stack-ordered per task, so\nleaking one corrupts the nesting for any outer mapping.\n\nUnmap the folio on those error paths too."
          }
        ],
        "id": "CVE-2026-98140",
        "lastModified": "2026-09-25T11:17:45.497",
        "metrics": {},
        "published": "2026-09-25T11:17:45.497",
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        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
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    }
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.