CVE-2026-64256

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

Description An issue exists in the XFS file system where the q id variable is defined as an unsigned 32-bit integer. If q id is set to XFS DQ ID MAX because the filesystem contains a dquot for that maximum ID, an addition operation within the dqiterate() function can cause the value to truncate to zero. This results in the iteration process starting over from the beginning.

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