CVE-2026-72190
Description
A flaw was found in the Linux kernel's NTFS filesystem driver. An incorrect locking order (ABBA deadlock) during file rename operations can lead to a race condition. A local attacker could exploit this by performing specific file system operations, causing the system to deadlock. This results in a Denial of Service (DoS), making the system unresponsive.
Statement
A moderate-severity flaw was found in the Linux kernel's NTFS filesystem driver. An incorrect mrec_lock locking order (ABBA deadlock) during file rename operations can race with the child-to-parent locking order used by the fsync and inode writeback paths, causing the kernel to deadlock. A local attacker with access to an NTFS filesystem could trigger this condition through specific file rename operations, resulting in a denial of service that makes the system unresponsive (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H). Red Hat Enterprise Linux 6 through 10 (kernel and kernel-rt) and Red Hat In-Vehicle OS (kernel and kernel-ivos-qualcomm) are not affected by this flaw because the vulnerable code is not present in the shipped kernel versions of these products.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 5.5 | N/A | N/A |
| Attack Vector | Local | N/A | N/A |
| Attack Complexity | Low | N/A | N/A |
| Privileges Required | Low | N/A | N/A |
| User Interaction | None | N/A | N/A |
| Scope | Unchanged | N/A | N/A |
| Confidentiality | None | N/A | N/A |
| Integrity Impact | None | N/A | N/A |
| Availability Impact | High | N/A | N/A |
Vector
Red Hat: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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