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: a dqiterate quota-id loop uses an unsigned 32-bit q_id, which can wrap when reaching XFS_DQ_ID_MAX, causing the iteration to restart. The fix casts to 64-bit (u64) to prevent truncation. Exploitation details are not provided in the supplied documents. ...