CVE-2026-43168
Description
A flaw was found in the Linux kernel's Oracle Cluster File System version 2 (ocfs2). This vulnerability arises from an issue in the reflink preserve cleanup process, where the system incorrectly handles extended attribute (xattr) entries. The cleanup logic fails to properly manage pointers and clean up the first entry under specific conditions. This could potentially lead to data integrity problems or system instability.
Understanding the Weakness (CWE)
Availability
Technical Impact: DoS: Resource Consumption (Memory); DoS: Resource Consumption (Other)
An adversary that can cause a resource counter to become inaccurate may be able to create situations where resources are not accounted for and not released, thus causing resources to become scarce for future needs.
Availability
Technical Impact: DoS: Crash, Exit, or Restart
An adversary that can cause a resource counter to become inaccurate may be able to force an error that causes the product to crash or exit out of its current operation.
Frequently Asked Questions
Not sure what something means? Check out our Security Glossary.
Want to get errata notifications? Sign up here.
