{"id":"CVE-2026-99132","published":"2026-10-28T11:17:33.033","lastModified":"2026-10-28T11:17:33.033","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.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/41a28c865d1d5843f8cb9e0af17a8f4d9e2961ff","tags":[]},{"url":"https://git.kernel.org/stable/c/6353e5cd8c43d6e805cacbfbfecf4103571a7ff8","tags":[]},{"url":"https://git.kernel.org/stable/c/e5456dec79c71c8ef8f9f9adb77d320f113b34db","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}