CVE-2026-68167

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An issue exists in the Btrfs file system where data relocation inodes may incorrectly use inlined file extents. This occurs because the system may attempt to compress the first block of a data relocation inode during the delayed allocation process, leading to the creation of an inlined extent. Subsequently, the get new location() function fails to verify if the file extent is inlined before checking the file offset, resulting in a system error. This behavior is triggered when memory pressure forces the data relocation inode to be written back before other blocks are allocated.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.