boxscore/security
CVE · referencelatest edition

Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-98139

Linux Linux — ntfs: only count successfully cleared runs when freeing clusters
  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  U  N  N  H    5.5   .0013    2.2     —
AFFECTED
  Product  Versions                                    Fixed
  Linux    11ccc9107dc460de28af90fac1f42404d9802735 –  —
  Linux    7.1 –                                       7.2.7
TIMELINE
  Sep 25  Reserved by Linux
  Sep 25  Published (CNA: Linux)
  Oct 8   ENRICHED — CVE-2026-98139 (Linux). Received CVSS 5.5 and CPE data from NVD.
CNA: Linux · CVSS v3.1 · 2 references · NVD status: Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: ntfs: only count successfully cleared runs when freeing clusters ntfs_cluster_free_from_rl_nolock() adds a run's length to nr_freed whenever the error bookkeeping condition is false, which includes cases where ntfs_bitmap_clear_run() actually failed - e.g. a second run failing with the same errno as an earlier one, or any failure after a non-ENOMEM error was already recorded. Since a failed ntfs_bitmap_clear_run() rolls back its partial modifications, no bits were cleared for that run, yet its length still inflates vol->free_clusters, corrupting statfs output and the allocator's free space gate. Only count runs whose bitmap clear succeeded.

Lifecycle

Complete event history — 3 events, chronological
DateEventDetail
September 25, 2026ReservedReserved by Linux
September 25, 2026PublishedPublished (CNA: Linux)
October 8, 2026ENRICHEDENRICHED — CVE-2026-98139 (Linux). Received CVSS 5.5 and CPE data from NVD.

Affected

Affected products and packages — 2 rows
VendorProduct / PackageEcosystemVersion introducedFixed
LinuxLinux—11ccc9107dc460de28af90fac1f42404d9802735—
LinuxLinux—7.17.2.7

References (2)

Related

Authoritative record: CVE-2026-98139 at cve.org

Vendors: linux

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-98139 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.