{"id":"CVE-2026-99132","aliases":[],"title":"xfs: don't hold buffer locks across sync transaction commit in xfs_sync_sb_buf","titleSource":"Linux","descriptionSource":"Linux","products":[{"vendor":"Linux","name":"Linux","platforms":[],"versions":[{"version":"f7664b31975bd893190708e76b2c424328f0c49b","status":"affected","lessThan":"e5456dec79c71c8ef8f9f9adb77d320f113b34db","versionType":"git"},{"version":"f7664b31975bd893190708e76b2c424328f0c49b","status":"affected","lessThan":"6353e5cd8c43d6e805cacbfbfecf4103571a7ff8","versionType":"git"},{"version":"f7664b31975bd893190708e76b2c424328f0c49b","status":"affected","lessThan":"41a28c865d1d5843f8cb9e0af17a8f4d9e2961ff","versionType":"git"}],"defaultStatus":"unaffected","source":"Linux","url":"https://www.cve.org/CVERecord?id=CVE-2026-99132"},{"vendor":"Linux","name":"Linux","platforms":[],"versions":[{"version":"4.18","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.18","versionType":"semver"},{"version":"6.18.59","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.13","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"defaultStatus":"affected","source":"Linux","url":"https://www.cve.org/CVERecord?id=CVE-2026-99132"}],"remediation":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: don't hold buffer locks across sync transaction commit in xfs_sync_sb_buf\n\nxfs_sync_sb_buf() holds sb/rtsb buffer locks across a synchronous\nxfs_trans_commit(), which flushes the CIL push workqueue internally.\nIf shutdown occurs during the CIL push, xfs_buf_item_unpin() needs to\nlock these buffers to fail them, causing a deadlock:\n\n  setlabel:          holds buf lock -> flush_workqueue(xfs-cil)\n  CIL push worker:   xfs_buf_item_unpin -> xfs_buf_lock(same buf)\n\nRemove the xfs_trans_bhold() calls so that commit releases the buffer\nlocks normally.  After the sync commit, re-acquire the buffers via\nmp->m_sb_bp / mp->m_rtsb_bp for the on-disk writeback.","severity":"unknown","score":null,"published":"2026-10-28T10:34:45.756Z","modified":"2026-10-28T10:34:45.756Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://git.kernel.org/stable/c/e5456dec79c71c8ef8f9f9adb77d320f113b34db","https://git.kernel.org/stable/c/6353e5cd8c43d6e805cacbfbfecf4103571a7ff8","https://git.kernel.org/stable/c/41a28c865d1d5843f8cb9e0af17a8f4d9e2961ff"],"sources":[{"name":"CVE","id":"CVE-2026-99132","modified":"2026-10-28T10:34:45.756Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-99132"}],"assessments":[],"sourceAffected":[],"kev":{"status":"not-listed","checkedAt":"2026-10-28T19:00:30.900Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}