ieee802154 phy1 wpan1: encryption failed: -22 wlan1: No active IBSS STAs - trying to scan for other IBSS networks with same SSID (merge) wlan1: No active IBSS STAs - trying to scan for other IBSS networks with same SSID (merge) INFO: task kworker/u4:1:23 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/u4:1 D26008 23 2 0x80000000 Workqueue: events_unbound fsnotify_connector_destroy_workfn Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_timeout+0x92d/0xfe0 kernel/time/timer.c:1794 do_wait_for_common kernel/sched/completion.c:83 [inline] __wait_for_common kernel/sched/completion.c:104 [inline] wait_for_common+0x29c/0x470 kernel/sched/completion.c:115 __synchronize_srcu+0x124/0x210 kernel/rcu/srcutree.c:936 fsnotify_connector_destroy_workfn+0x49/0xa0 fs/notify/mark.c:174 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 INFO: task kworker/u4:8:9501 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/u4:8 D27200 9501 2 0x80000000 Workqueue: events_unbound fsnotify_mark_destroy_workfn Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_timeout+0x92d/0xfe0 kernel/time/timer.c:1794 do_wait_for_common kernel/sched/completion.c:83 [inline] __wait_for_common kernel/sched/completion.c:104 [inline] wait_for_common+0x29c/0x470 kernel/sched/completion.c:115 __synchronize_srcu+0x124/0x210 kernel/rcu/srcutree.c:936 fsnotify_mark_destroy_workfn+0xfd/0x340 fs/notify/mark.c:795 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 INFO: task kworker/u4:10:24139 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/u4:10 D28000 24139 2 0x80000000 Workqueue: netns cleanup_net Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1016 [inline] __mutex_lock+0x5f0/0x1190 kernel/locking/mutex.c:1078 exp_funnel_lock kernel/rcu/tree_exp.h:329 [inline] _synchronize_rcu_expedited+0x256/0x6f0 kernel/rcu/tree_exp.h:667 synchronize_rcu+0xc6/0x160 kernel/rcu/tree_plugin.h:818 ops_exit_list+0xf9/0x150 net/core/net_namespace.c:156 cleanup_net+0x3b4/0x8b0 net/core/net_namespace.c:554 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 INFO: task syz-executor.1:25987 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.1 D28416 25987 21215 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_timeout+0x92d/0xfe0 kernel/time/timer.c:1794 do_wait_for_common kernel/sched/completion.c:83 [inline] __wait_for_common kernel/sched/completion.c:104 [inline] wait_for_common+0x29c/0x470 kernel/sched/completion.c:115 __flush_work+0x4bb/0x8b0 kernel/workqueue.c:2926 p9_mux_poll_stop net/9p/trans_fd.c:190 [inline] p9_conn_destroy net/9p/trans_fd.c:898 [inline] p9_fd_close+0x290/0x520 net/9p/trans_fd.c:934 p9_client_create+0x901/0x12e0 net/9p/client.c:1084 v9fs_session_init+0x1dd/0x1770 fs/9p/v9fs.c:421 v9fs_mount+0x73/0x910 fs/9p/vfs_super.c:135 mount_fs+0xa3/0x310 fs/super.c:1261 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961 vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2492 [inline] do_mount+0x115c/0x2f50 fs/namespace.c:2822 ksys_mount+0xcf/0x130 fs/namespace.c:3038 __do_sys_mount fs/namespace.c:3052 [inline] __se_sys_mount fs/namespace.c:3049 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3049 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f3cd220efe9 Code: Bad RIP value. RSP: 002b:00007f3cd0b84168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f3cd2321f60 RCX: 00007f3cd220efe9 RDX: 0000000020000180 RSI: 0000000020000140 RDI: 0000000000000000 RBP: 00007f3cd226908d R08: 0000000020004c80 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd969dc35f R14: 00007f3cd0b84300 R15: 0000000000022000 INFO: task syz-executor.2:26004 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D28744 26004 14951 0x80000002 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 _synchronize_rcu_expedited+0x419/0x6f0 kernel/rcu/tree_exp.h:686 synchronize_rcu+0xc6/0x160 kernel/rcu/tree_plugin.h:818 evdev_detach_client drivers/input/evdev.c:408 [inline] evdev_release+0x221/0x3e0 drivers/input/evdev.c:471 __fput+0x2ce/0x890 fs/file_table.c:278 task_work_run+0x148/0x1c0 kernel/task_work.c:113 exit_task_work include/linux/task_work.h:22 [inline] do_exit+0xbf3/0x2be0 kernel/exit.c:870 do_group_exit+0x125/0x310 kernel/exit.c:967 get_signal+0x3f2/0x1f70 kernel/signal.c:2589 do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:799 exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f718ad29fe9 Code: Bad RIP value. RSP: 002b:00007f718963c218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f718ae3d1d8 RCX: 00007f718ad29fe9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f718ae3d1d8 RBP: 00007f718ae3d1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f718ae3d1dc R13: 00007fff3b05806f R14: 00007f718963c300 R15: 0000000000022000 Showing all locks held in the system: 2 locks held by kworker/u4:1/23: #0: 000000005799f384 ((wq_completion)"events_unbound"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 0000000026404af4 (connector_reaper_work){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 1 lock held by khungtaskd/1570: #0: 00000000cd6036d7 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 1 lock held by in:imklog/7822: #0: 0000000030b9e0b3 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 3 locks held by kworker/1:3/8133: 2 locks held by kworker/u4:8/9501: #0: 000000005799f384 ((wq_completion)"events_unbound"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 00000000b54e9123 ((reaper_work).work){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 4 locks held by kworker/u4:10/24139: #0: 00000000777143a9 ((wq_completion)"%s""netns"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 00000000c765bc43 (net_cleanup_work){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 00000000dd74972e (pernet_ops_rwsem){++++}, at: cleanup_net+0xa8/0x8b0 net/core/net_namespace.c:521 #3: 0000000064e51bf1 (rcu_preempt_state.exp_mutex){+.+.}, at: exp_funnel_lock kernel/rcu/tree_exp.h:329 [inline] #3: 0000000064e51bf1 (rcu_preempt_state.exp_mutex){+.+.}, at: _synchronize_rcu_expedited+0x256/0x6f0 kernel/rcu/tree_exp.h:667 1 lock held by syz-executor.2/26004: #0: 0000000064e51bf1 (rcu_preempt_state.exp_mutex){+.+.}, at: exp_funnel_lock kernel/rcu/tree_exp.h:297 [inline] #0: 0000000064e51bf1 (rcu_preempt_state.exp_mutex){+.+.}, at: _synchronize_rcu_expedited+0x4dc/0x6f0 kernel/rcu/tree_exp.h:667 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline] watchdog+0x991/0xe60 kernel/hung_task.c:287 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 8133 Comm: kworker/1:3 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events p9_poll_workfn RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:937 [inline] RIP: 0010:__mutex_lock+0xb5/0x1190 kernel/locking/mutex.c:1078 Code: f3 c7 40 14 f3 f3 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 84 24 28 01 00 00 31 c0 e8 05 ed 28 f9 bf 01 00 00 00 e8 eb e5 28 f9 <49> 8d 45 60 4d 89 e1 31 c9 48 89 44 24 40 48 89 c7 31 d2 41 b8 01 RSP: 0018:ffff88809f657990 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: 1ffff1101267b287 RSI: 00000000ffffffff RDI: ffff8880933d9438 RBP: 0000000000000000 R08: ffffffff81b4d265 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8880aae05d00 R14: 0000000000000000 R15: ffffffff81b4d265 FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff11fa13000 CR3: 00000000a0c00000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ep_scan_ready_list+0x7f5/0x9a0 fs/eventpoll.c:688 ep_eventpoll_poll+0x10f/0x160 fs/eventpoll.c:940 vfs_poll include/linux/poll.h:90 [inline] p9_fd_poll+0x1c8/0x2c0 net/9p/trans_fd.c:250 p9_poll_mux net/9p/trans_fd.c:638 [inline] p9_poll_workfn+0x2e5/0x4a0 net/9p/trans_fd.c:1158 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 ---------------- Code disassembly (best guess): 0: f3 c7 40 14 f3 f3 f3 xrelease movl $0xf3f3f3f3,0x14(%rax) 7: f3 8: 65 48 8b 04 25 28 00 mov %gs:0x28,%rax f: 00 00 11: 48 89 84 24 28 01 00 mov %rax,0x128(%rsp) 18: 00 19: 31 c0 xor %eax,%eax 1b: e8 05 ed 28 f9 callq 0xf928ed25 20: bf 01 00 00 00 mov $0x1,%edi 25: e8 eb e5 28 f9 callq 0xf928e615 * 2a: 49 8d 45 60 lea 0x60(%r13),%rax <-- trapping instruction 2e: 4d 89 e1 mov %r12,%r9 31: 31 c9 xor %ecx,%ecx 33: 48 89 44 24 40 mov %rax,0x40(%rsp) 38: 48 89 c7 mov %rax,%rdi 3b: 31 d2 xor %edx,%edx 3d: 41 rex.B 3e: b8 .byte 0xb8 3f: 01 .byte 0x1