CVE-2026-31598

kernel: ocfs2: fix possible deadlock between unlink and dio_end_io_write

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Severity

Moderate

Red Hat Product Security

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CVSS

Review impact separately from score.

Published · April 24, 2026

Updated · October 20, 2026

Description

A flaw was found in the ocfs2 file system within the Linux kernel. A local user could potentially trigger a deadlock due to an ABBA lock ordering violation between the ocfs2_unlink and ocfs2_dio_end_io_write functions. This race condition, caused by inconsistent lock acquisition order, could lead to a system hang, resulting in a Denial of Service (DoS).

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CWE-833 · Deadlock