CVE Database›CVE-2023-54177

CVE-2023-54177

kernel: quota: fix warning in dqgrab()

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Severity

Low

Red Hat Product Security

3.3

CVSS 3.1

Review impact separately from score.

Published · December 30, 2025

Updated · June 30, 2026

Description

A race condition flaw was found in the Linux kernel's disk quota subsystem. During concurrent filesystem remount operations involving quota suspend and resume, a warning can be triggered in dqgrab() when a dquot lacks the DQ_ACTIVE_B flag. This occurs due to a race between multiple processes manipulating quota state.

Statement

This issue manifests as a kernel warning rather than a crash or memory corruption. It requires specific timing with concurrent remount operations while quota is being manipulated. The warning indicates a harmless state that the code can handle safely.

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 · 3.3
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CWE-367 · Time-of-check Time-of-use (TOCTOU) Race Condition