CVE-2026-68167

A flaw was found in the Linux kernel's btrfs filesystem. A local user could trigger a kernel panic by performing specific filesystem operations that involve data relocation. This occurs because the system attempts to compress and inline data for relocation inodes, which are not designed for such operations, leading to an unexpected non-zero offset error during a file extent check. Successful exploitation could lead to a denial of service.

This issue affects Btrfs during data relocation operations. Attempting compression on data-reloc inodes can trigger a kernel BUG in get_new_location(). Systems not using Btrfs are not affected.

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.