CVE-2026-64256

A flaw was found in the Linux kernel's XFS filesystem. This vulnerability occurs in the dqiterate function, where an unsigned 32-bit quota identifier qid can wrap around to zero if it reaches its maximum value. This integer overflow can cause the iteration of quota IDs to restart, potentially...

UBUNTU-CVE-2026-64256

In the Linux kernel, the following vulnerability has been resolved: xfs: don't wrap around quota ids in dqiterate LOLLM noticed that qid is an unsigned 32-bit variable. If it happens to be set to XFSDQIDMAX due to a filesystem that actually has a dquot for IDMAX, then this addition will truncate ...

CVE-2026-64256

CVE-2026-64256 affects the Linux kernel XFS quota handling in the dqiterate path. An unsigned 32-bit quota id (q_id) can wrap to zero when it accidentally hits XFS_DQ_ID_MAX, causing the iteration over quotas to restart. The fix casts the value to a 64-bit integer (u64) to prevent wraparound. Pub...