CVE-2026-31556

A flaw was found in the Linux kernel's XFS filesystem component. During quota scrubbing, the xchkquotaitem function could exit prematurely without releasing a critical lock. This can result in lock leaks or deadlocks in subsequent quota operations, potentially leading to system instability or a...

CVE-2026-31556

In the Linux kernel, the following vulnerability has been resolved: xfs: scrub: unlock dquot before early return in quota scrub xchkquotaitem can return early after calling xchkfblockprocesserror. When that helper returns false, the function returned immediately without dropping dq-qqlock, which...

CVE-2026-31556

CVE-2026-31556 concerns the Linux kernel XFS quota scrub path. Multiple connected sources document the issue: in xfs, during quota scrubbing, xchk_quota_item could return early after xchk_fblock_process_error without dropping the dquot lock dq->q_qlock, risking lock leaks or deadlocks in later...

CVE-2026-31556

In the Linux kernel, the following vulnerability has been resolved: xfs: scrub: unlock dquot before early return in quota scrub xchkquotaitem can return early after calling xchkfblockprocesserror. When that helper returns false, the function returned immediately without dropping dq-qqlock, which...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the xchkquotaitem function not releasing dq-qqlock before returning in earlier versions. This cou...

PT-2026-34908

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,...