CVE-2026-98139

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 v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/7eb97d8828e7758b9c81277f7802e740a800f78a	Patch
https://git.kernel.org/stable/c/be9e89ccb8e52a3e4b67feeb03ebd8133091dc7e	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:7.3:rc1::::::

History

08 Oct 2026, 17:26

Type	Values Removed	Values Added
CWE		NVD-CWE-noinfo
CPE		cpe:2.3:o:linux:linux_kernel:::::::: cpe:2.3:o:linux:linux_kernel:7.3:rc1::::::
References	~~() https://git.kernel.org/stable/c/7eb97d8828e7758b9c81277f7802e740a800f78a -~~	() https://git.kernel.org/stable/c/7eb97d8828e7758b9c81277f7802e740a800f78a - Patch
References	~~() https://git.kernel.org/stable/c/be9e89ccb8e52a3e4b67feeb03ebd8133091dc7e -~~	() https://git.kernel.org/stable/c/be9e89ccb8e52a3e4b67feeb03ebd8133091dc7e - Patch
First Time		Linux Linux linux Kernel
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.5

25 Sep 2026, 11:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-25 11:17

Updated : 2026-10-19 10:18

NVD link : CVE-2026-98139

Mitre link : CVE-2026-98139

CVE.ORG link : CVE-2026-98139

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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