CVE-2026-31556

In the Linux kernel, the following vulnerability has been resolved: xfs: scrub: unlock dquot before early return in quota scrub xchk_quota_item can return early after calling xchk_fblock_process_error. When that helper returns false, the function returned immediately without dropping dq->q_qlock, which can leave the dquot lock held and risk lock leaks or deadlocks in later quota operations. Fix this by unlocking dq->q_qlock before the early return.

The following products are affected by CVE-2026-31556 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-31556.

URL	Resource
https://git.kernel.org/stable/c/268378b6ad20569af0d1957992de1c8b16c6e900
https://git.kernel.org/stable/c/3b0c3414b308e6822cda90bf99f7eac94d4cca2b
https://git.kernel.org/stable/c/d128fc0c5c2b19224927d4fd2a46c2fe6a1f606f
https://git.kernel.org/stable/c/e822f535273af0e8968eab7acc0cea0b90dd25af