{"id":"CVE-2026-72375","title":"afs: Fix reinitialisation of the inode, in particular ->lock_work","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nafs: Fix reinitialisation of the inode, in particular ->lock_work\n\nIt seems that initalising afs_vnode::lock_work a single time in the slab's\ninit function isn't suffic…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= e8d6c554126b830217c5e9f549e0e21f865a0a8a < 63d3f283858fae097fb09ddd4ce46bb0bc1f9d01","Linux >= e8d6c554126b830217c5e9f549e0e21f865a0a8a < ebfd13c0367adb43d7c0a72f5cd7e004e60c6b28","Linux >= e8d6c554126b830217c5e9f549e0e21f865a0a8a < 5597fbd1e7c161914f20315a726e54025b0fdadb","Linux 2.6.23"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-16T18:48:13.426490Z"},"published":"2026-08-15","updated":"2026-10-16","sourceUpdated":"2026-10-16T18:55:20.832Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-72375","references":[{"url":"https://git.kernel.org/stable/c/63d3f283858fae097fb09ddd4ce46bb0bc1f9d01"},{"url":"https://git.kernel.org/stable/c/ebfd13c0367adb43d7c0a72f5cd7e004e60c6b28"},{"url":"https://git.kernel.org/stable/c/5597fbd1e7c161914f20315a726e54025b0fdadb"}],"tags":["cve.org"],"epss":0.00173,"epssPercentile":0.06303,"ingestedAt":"2026-10-16T19:46:24.401Z","slug":"CVE-2026-72375","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nafs: Fix reinitialisation of the inode, in particular ->lock_work\n\nIt seems that initalising afs_vnode::lock_work a single time in the slab's\ninit function isn't sufficient for work_structs.  This results in the\nDEBUG_OBJECTS debugging stuff producing a warning occasionally when running\nthe generic/131 xfstest:\n\n ODEBUG: activate not available (active state 0) object: 0000000016d8760f object type: work_struct hint: afs_lock_work+0x0/0x220\n WARNING: lib/debugobjects.c:629 at debug_print_object+0x4b/0x90, CPU#3: locktest/7695\n ...\n CPU: 3 UID: 0 PID: 7695 Comm: locktest Tainted: G S                  7.1.0-build3+ #2771 PREEMPT\n ...\n RIP: 0010:debug_print_object+0x65/0x90\n ...\n Call Trace:\n  <TASK>\n  ? __pfx_afs_lock_work+0x10/0x10\n  debug_object_activate+0x122/0x170\n  insert_work+0x25/0x60\n  __queue_work+0x2e0/0x340\n  queue_delayed_work_on+0x48/0x70\n  afs_fl_release_private+0x57/0x70\n  locks_release_private+0x5c/0xa0\n  locks_free_lock+0xe/0x20\n  posix_lock_inode+0x55f/0x5b0\n  locks_lock_inode_wait+0x81/0x140\n  ? file_write_and_wait_range+0x50/0x70\n  afs_lock+0xcd/0x110\n  fcntl_setlk+0x10d/0x260\n  do_fcntl+0x24e/0x5b0\n  __do_sys_fcntl+0x6a/0x90\n  do_syscall_64+0x11e/0x310\n  entry_SYSCALL_64_after_hwframe+0x71/0x79\n\nFix this by reinitialising ->lock_work after allocating an inode.\n\nAlso, flush ->lock_work when the inode is being evicted to make sure it's\nnot still running.\n\n## Affected\n\n- `Linux >= e8d6c554126b830217c5e9f549e0e21f865a0a8a < 63d3f283858fae097fb09ddd4ce46bb0bc1f9d01`\n- `Linux >= e8d6c554126b830217c5e9f549e0e21f865a0a8a < ebfd13c0367adb43d7c0a72f5cd7e004e60c6b28`\n- `Linux >= e8d6c554126b830217c5e9f549e0e21f865a0a8a < 5597fbd1e7c161914f20315a726e54025b0fdadb`\n- `Linux 2.6.23`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}