CVE-2026-80538

A flaw was found in the XFS filesystem within the Linux kernel. The xfs_rtginode_ensure() function incorrectly handles errors returned by xfs_rtginode_load(), treating I/O, allocation, or corruption errors as successful operations. This oversight can result in the realtime group inode remaining unset, causing the growfs utility to proceed with an incomplete or corrupted inode. The primary consequence is potential data corruption or system instability during filesystem operations.

Red Hat has classified this issue as having Moderate impact because triggering the flaw requires local access and specific administrative actions during filesystem growth operations to cause system instability. Supported Red Hat Enterprise Linux versions are not affected by this vulnerability, as the realtime group inode feature code introduced in upstream Linux 6.13 is not present in enterprise kernels.

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.