CVE-2026-31598
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).
Understanding the Weakness (CWE)
Availability
Technical Impact: DoS: Resource Consumption (CPU); DoS: Resource Consumption (Other); DoS: Crash, Exit, or Restart
Each thread of execution will "hang" and prevent tasks from completing. In some cases, CPU consumption may occur if a lock check occurs in a tight loop.
Frequently Asked Questions
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