CVE-2026-53041

Description

A flaw was found in the Linux kernel's Oracle Cluster File System version 2 (OCFS2). When an OCFS2 inode has both inline and and block-based extended attributes (xattrs), the listxattr() function can return a size larger than the caller's buffer. This incorrect size handling can lead to a kernel bug and a system crash, resulting in a Denial of Service (DoS).

Understanding the Weakness (CWE)

CWE-787

Integrity

Technical Impact: Modify Memory; Execute Unauthorized Code or Commands

Write operations could cause memory corruption. In some cases, an adversary can modify control data such as return addresses in order to execute unexpected code.

Availability

Technical Impact: DoS: Crash, Exit, or Restart

Attempting to access out-of-range, invalid, or unauthorized memory could cause the product to crash.

Other

Technical Impact: Unexpected State

Subsequent write operations can produce undefined or unexpected results.

Frequently Asked Questions

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