CVE-2026-98539
kernel: fs/ntfs3: use d_instantiate_new() in ntfs_create_inode() and murder syzbot's "WARNING in do_new_mount" saga
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 18, 2026
Updated · October 20, 2026
Description
A flaw was found in the Linux kernel's NTFS3 file system driver. A race condition during directory creation allows concurrent path lookup or mount operations to access and lock an inode before its initialization finishes. This improper synchronization resets and corrupts the directory's internal lock state, causing subsequent operations on the directory to hang indefinitely. A local user could exploit this flaw to cause a Denial of Service (DoS) by triggering concurrent file operations on an NTFS3 file system.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-366 · Race Condition within a Thread