CVE-2026-63793

ntfs: serialize volume label accesses

State: Published
Severity: 7.8 High
Published: Jul 19, 2026
Updated: Aug 17, 2026
Reserved: Jul 19, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

ntfs: serialize volume label accesses

Protect vol->volume_label with a mutex and snaphost the label before copy_to_user. This prevent a use-after-free when FS_IOC_SETFSLABEL replaces the vol->volume_label and FS_IOC_GETTSLABEL reads it concurrently.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	9c87959601e80b39a45250e362e6ddfec17cb0fa to before acd744019460bad22e43d4569a502f9c88d331aeAffected 9c87959601e80b39a45250e362e6ddfec17cb0fa to before e9e50ce4f13dc721014af622613409455c734942Affected
LinuxLinux	7.1Affected before 7.1Not affected 7.1.3 through 7.1.*Not affected 7.2 and laterNot affected

References

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