Circular Locking Dependency in Linux Kernel OCFS2

CVE-2026-93252

What is CVE-2026-93252?

A vulnerability exists in the OCFS2 component of the Linux Kernel, stemming from a circular locking dependency that could lead to deadlocks during concurrent operations. The issue arises when the system attempts to acquire locks in an inconsistent order, specifically between the ip_xattr_sem and j_trans_barrier locks. This can prevent tasks from proceeding, thereby affecting system performance and reliability. A patch has been implemented to address the locking order and enhance the stability of the transaction processes in OCFS2, ensuring that lock acquisition follows a defined order to prevent such deadlocks.

References