INFO: task kworker/u4:1:64 blocked for more than 140 seconds. Not tainted 4.14.123+ #5 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/u4:1 D25952 64 2 0x80000000 Workqueue: netns cleanup_net Call Trace: loop1: p1 p2 p3 p4 < > loop1: partition table partially beyond EOD, truncated loop1: p1 start 1 is beyond EOD, truncated loop1: p2 start 101 is beyond EOD, truncated loop1: p3 start 201 is beyond EOD, truncated schedule+0x92/0x1c0 kernel/sched/core.c:3498 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3556 loop1: p4 start 301 is beyond EOD, truncated __mutex_lock_common kernel/locking/mutex.c:833 [inline] __mutex_lock+0x559/0x1430 kernel/locking/mutex.c:893 cleanup_net+0x136/0x860 net/core/net_namespace.c:450 process_one_work+0x7c6/0x1510 kernel/workqueue.c:2134 worker_thread+0x5d7/0x1080 kernel/workqueue.c:2271 kthread+0x310/0x420 kernel/kthread.c:232 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:404 Showing all locks held in the system: 1 lock held by khungtaskd/23: #0: (tasklist_lock){.+.+}, at: [<000000001f7217c1>] debug_show_all_locks+0x7c/0x21a kernel/locking/lockdep.c:4541 3 locks held by kworker/u4:1/64: #0: ("%s""netns"){+.+.}, at: [<00000000672329e5>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: (net_cleanup_work){+.+.}, at: [<000000007a538f40>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 #2: (net_mutex){+.+.}, at: [<0000000083ac625a>] cleanup_net+0x136/0x860 net/core/net_namespace.c:450 1 lock held by rsyslogd/1631: #0: (&f->f_pos_lock){+.+.}, at: [<00000000fb5de64e>] __fdget_pos+0xa6/0xc0 fs/file.c:769 2 locks held by getty/1759: #0: (&tty->ldisc_sem){++++}, at: [<0000000074c17e13>] tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:284 #1: (&ldata->atomic_read_lock){+.+.}, at: [<00000000d1444d0d>] n_tty_read+0x1f7/0x1700 drivers/tty/n_tty.c:2156 1 lock held by syz-executor.2/12256: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/12258: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/12289: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.5/12290: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/12321: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/12359: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/12382: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/12405: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/12447: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/12474: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/12511: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/12535: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/12744: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/12771: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/12791: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/12830: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/12849: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/12877: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/12907: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/12937: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/12964: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/12996: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/13014: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/13037: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/13055: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/13068: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/13086: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/13107: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/13125: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/13147: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/13173: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/13184: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.5/13212: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/13286: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/13311: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/13330: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.5/13362: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/13374: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/13482: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/13572: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/13591: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/13643: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/13657: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/13673: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/13774: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/13797: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/13842: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/13916: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/13939: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/13962: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/13985: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/14008: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/14042: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/14072: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/14098: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/14117: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/14132: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/14163: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/14185: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/14226: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/14255: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/14332: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/14358: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/14387: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/14408: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/14433: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/14462: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/14500: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/14530: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/14575: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/14621: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.4/14664: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/14718: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.4/14719: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/14748: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.5/14781: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/14788: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.5/14812: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/14823: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.4/14844: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/14846: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.4/14871: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/14872: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.0/14895: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.4/14897: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/14899: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.5/14932: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/14933: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/14951: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.4/14980: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/15007: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/15037: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/15160: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/15197: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/15217: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/15293: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/15317: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/15340: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/15361: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/15381: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/15400: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/15517: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/15543: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/15572: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/15593: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/15621: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/15703: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/15725: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/15749: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/15766: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/15851: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/15867: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/15888: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/15922: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/15941: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/15976: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/15988: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16006: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16028: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16065: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16088: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16168: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16186: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16226: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16255: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16280: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16294: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16304: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16329: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16350: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16362: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16391: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16443: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16463: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16479: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16497: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16519: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16535: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16558: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16573: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16589: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16600: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16626: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16640: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16656: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16664: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16688: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16703: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16710: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16717: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16725: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16757: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16771: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16778: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16791: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16808: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16828: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16837: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16844: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16849: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/16997: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17005: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17072: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17086: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17109: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17132: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17171: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17187: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17216: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17231: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17276: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17285: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17305: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17318: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17338: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17353: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17391: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17412: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17422: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17440: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17459: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17491: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17515: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17551: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17581: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17696: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17717: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17741: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17757: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17792: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17807: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17821: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17844: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17859: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17877: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17904: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17929: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17942: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17951: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17961: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17972: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/17981: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/18002: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.1/23947: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.0/23948: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.0/23981: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.1/23983: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.1/24016: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.0/24021: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.0/24257: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.0/24271: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/25081: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/25113: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/25120: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.3/25127: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.5/25172: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 1 lock held by syz-executor.2/25211: #0: (net_mutex){+.+.}, at: [<00000000b44413be>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410 2 locks held by syz-executor.5/28193: #0: (&sb->s_type->i_mutex_key#8){+.+.}, at: [<00000000ca01d70b>] inode_lock include/linux/fs.h:715 [inline] #0: (&sb->s_type->i_mutex_key#8){+.+.}, at: [<00000000ca01d70b>] __sock_release+0x86/0x2c0 net/socket.c:601 #1: (rtnl_mutex){+.+.}, at: [<000000005b876579>] raw_close+0xe/0x30 net/ipv4/raw.c:699 2 locks held by syz-executor.4/28219: #0: (&sb->s_type->i_mutex_key#8){+.+.}, at: [<00000000ca01d70b>] inode_lock include/linux/fs.h:715 [inline] #0: (&sb->s_type->i_mutex_key#8){+.+.}, at: [<00000000ca01d70b>] __sock_release+0x86/0x2c0 net/socket.c:601 #1: (rtnl_mutex){+.+.}, at: [<000000005b876579>] raw_close+0xe/0x30 net/ipv4/raw.c:699 1 lock held by syz-executor.1/28228: #0: (&bdev->bd_mutex){+.+.}, at: [<00000000ad5b8a47>] __blkdev_get+0xf3/0xf90 fs/block_dev.c:1457 3 locks held by blkid/28233: #0: (&bdev->bd_mutex){+.+.}, at: [<00000000c5c5101a>] __blkdev_put+0xb1/0x6d0 fs/block_dev.c:1778 #1: (loop_index_mutex){+.+.}, at: [<00000000bffd68b6>] lo_release+0x1b/0x190 drivers/block/loop.c:1666 #2: (&lo->lo_ctl_mutex#2){+.+.}, at: [<000000004953001e>] __lo_release drivers/block/loop.c:1643 [inline] #2: (&lo->lo_ctl_mutex#2){+.+.}, at: [<000000004953001e>] lo_release+0x7f/0x190 drivers/block/loop.c:1667 2 locks held by syz-executor.0/28235: #0: (&bdev->bd_mutex){+.+.}, at: [<00000000ad5b8a47>] __blkdev_get+0xf3/0xf90 fs/block_dev.c:1457 #1: (loop_index_mutex){+.+.}, at: [<00000000b29bc200>] lo_open+0x19/0xb0 drivers/block/loop.c:1623 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 23 Comm: khungtaskd Not tainted 4.14.123+ #5 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0xb9/0x10e lib/dump_stack.c:53 nmi_cpu_backtrace.cold+0x47/0x86 lib/nmi_backtrace.c:101 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 28190 Comm: syz-executor.3 Not tainted 4.14.123+ #5 task: 0000000026f087e7 task.stack: 00000000ce42d1b8 RIP: 0010:timerqueue_add+0x2/0x2e0 lib/timerqueue.c:40 RSP: 0018:ffff8881d7707e38 EFLAGS: 00000046 RAX: 0000000000000000 RBX: ffff8881d7724a80 RCX: 0000000000000000 RDX: 1ffff1102bae4ad0 RSI: ffff88815d725648 RDI: ffff8881d7724a90 RBP: ffff88815d725648 R08: 0000000000000001 R09: 0000000000000003 R10: 0000000000000006 R11: 0000000000000001 R12: ffff8881d77249c0 R13: 0000000000000001 R14: ffff8881d77249f8 R15: dffffc0000000000 FS: 00007f344a8a4700(0000) GS:ffff8881d7700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f57ce367518 CR3: 00000001fb026003 CR4: 00000000001606a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: enqueue_hrtimer+0x12c/0x3b0 kernel/time/hrtimer.c:866 __run_hrtimer kernel/time/hrtimer.c:1274 [inline] __hrtimer_run_queues+0x540/0xc10 kernel/time/hrtimer.c:1323 hrtimer_interrupt+0x1bd/0x490 kernel/time/hrtimer.c:1357 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1037 [inline] smp_apic_timer_interrupt+0x136/0x620 arch/x86/kernel/apic/apic.c:1062 apic_timer_interrupt+0x84/0x90 arch/x86/entry/entry_64.S:789 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:778 [inline] RIP: 0010:lock_acquire+0x15c/0x380 kernel/locking/lockdep.c:3994 RSP: 0018:ffff88815d737668 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10 RAX: 0000000000000007 RBX: 0000000000000246 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff88817ac96658 RDI: 0000000000000246 RBP: ffff88817ac95e00 R08: 0000000000000000 R09: 0000000000020025 R10: ffff88817ac96658 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000002 R15: 0000000000000000 rcu_lock_acquire include/linux/rcupdate.h:244 [inline] rcu_read_lock include/linux/rcupdate.h:631 [inline] lock_page_memcg+0x36/0x270 mm/memcontrol.c:1650 page_remove_file_rmap mm/rmap.c:1211 [inline] page_remove_rmap+0x144/0x440 mm/rmap.c:1296 zap_pte_range mm/memory.c:1342 [inline] zap_pmd_range mm/memory.c:1444 [inline] zap_pud_range mm/memory.c:1473 [inline] zap_p4d_range mm/memory.c:1494 [inline] unmap_page_range+0xa26/0x12f0 mm/memory.c:1515 unmap_single_vma+0x118/0x170 mm/memory.c:1560 unmap_vmas+0x43/0xa0 mm/memory.c:1590 exit_mmap+0x213/0x440 mm/mmap.c:3072 __mmput kernel/fork.c:938 [inline] mmput kernel/fork.c:959 [inline] mmput+0xc8/0x350 kernel/fork.c:954 exit_mm kernel/exit.c:545 [inline] do_exit+0x84e/0x2960 kernel/exit.c:861 Code: 48 89 ef e8 b1 f2 cf fe eb e2 48 89 fe 48 c7 c7 20 5f 6e 9b e8 cb d8 9e fe 0f 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 41 57 <41> 56 49 89 fe 41 55 41 54 49 89 f4 55 53 e8 3b 99 ad fe 4c 89