CVE-2025-40179

A flaw was found in the Linux kernel’s ext4 filesystem implementation. The kernel did not limit the maximum size of orphan files, which could be made arbitrarily large. During orphan replay, the kernel traverses the file and pins all its buffers in memory, potentially resulting in excessive memory consumption.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.