CVE-2026-98139ntfs: only count successfully cleared runs when freeing clusters
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Analyzed
- Record last updated
- Sep 25, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 11ccc9107dc460de28af90fac1f42404d9802735 builds before 7eb97d8828e7758b9c81277f7802e740a800f78a; from 11ccc9107dc460de28af90fac1f42404d9802735 before be9e89ccb8e52a3e4b67feeb03ebd8133091dc7e | CNA record |
linux linux_kernel linux:linux_kernel | from 7.1 before 7.2.7; 7.3 | NVD |
References
- https://git.kernel.org/stable/c/7eb97d8828e7758b9c81277f7802e740a800f78apatch
- https://git.kernel.org/stable/c/be9e89ccb8e52a3e4b67feeb03ebd8133091dc7epatch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.