INFO: task kworker/1:5:5133 blocked for more than 143 seconds.
Not tainted 6.6.0-rc6-syzkaller-00355-gfe3cfe869d5e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:5 state:D stack:23152 pid:5133 ppid:2 flags:0x00004000
Workqueue: events nfc_urelease_event_work
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0xee1/0x5a10 kernel/sched/core.c:6695
schedule+0xe7/0x1b0 kernel/sched/core.c:6771
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6830
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x969/0x1340 kernel/locking/mutex.c:747
nfc_urelease_event_work+0x173/0x310 net/nfc/netlink.c:1849
process_one_work+0x884/0x15c0 kernel/workqueue.c:2630
process_scheduled_works kernel/workqueue.c:2703 [inline]
worker_thread+0x8b9/0x1290 kernel/workqueue.c:2784
kthread+0x33c/0x440 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
INFO: task kworker/u4:15:28792 blocked for more than 143 seconds.
Not tainted 6.6.0-rc6-syzkaller-00355-gfe3cfe869d5e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:15 state:D stack:26304 pid:28792 ppid:2 flags:0x00004000
Workqueue: nfc2_nci_rx_wq nci_rx_work
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0xee1/0x5a10 kernel/sched/core.c:6695
schedule+0xe7/0x1b0 kernel/sched/core.c:6771
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6830
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x969/0x1340 kernel/locking/mutex.c:747
device_lock include/linux/device.h:992 [inline]
nfc_targets_found+0xe8/0x3d0 net/nfc/core.c:778
nci_rf_discover_ntf_packet net/nfc/nci/ntf.c:390 [inline]
nci_ntf_packet+0x1478/0x2ce0 net/nfc/nci/ntf.c:798
nci_rx_work+0x17f/0x320 net/nfc/nci/core.c:1522
process_one_work+0x884/0x15c0 kernel/workqueue.c:2630
process_scheduled_works kernel/workqueue.c:2703 [inline]
worker_thread+0x8b9/0x1290 kernel/workqueue.c:2784
kthread+0x33c/0x440 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
INFO: task syz-executor.1:30425 blocked for more than 143 seconds.
Not tainted 6.6.0-rc6-syzkaller-00355-gfe3cfe869d5e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:25248 pid:30425 ppid:5074 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0xee1/0x5a10 kernel/sched/core.c:6695
schedule+0xe7/0x1b0 kernel/sched/core.c:6771
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6830
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x969/0x1340 kernel/locking/mutex.c:747
nfc_unregister_device+0x1a2/0x330 net/nfc/core.c:1181
virtual_ncidev_close+0x51/0xa0 drivers/nfc/virtual_ncidev.c:163
__fput+0x3f7/0xa70 fs/file_table.c:384
task_work_run+0x14d/0x240 kernel/task_work.c:180
exit_task_work include/linux/task_work.h:38 [inline]
do_exit+0xa92/0x2a20 kernel/exit.c:874
do_group_exit+0xd4/0x2a0 kernel/exit.c:1024
get_signal+0x23ba/0x2790 kernel/signal.c:2892
arch_do_signal_or_restart+0x90/0x7f0 arch/x86/kernel/signal.c:309
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x1d/0x60 kernel/entry/common.c:296
do_syscall_64+0x44/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f921e87cb23
RSP: 002b:00007ffe280beff8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: 00007f921cdff000 RBX: 00007f921e99c428 RCX: 00007f921e87cb23
RDX: 0000000000000003 RSI: 0000000000200000 RDI: 0000000000000000
RBP: 0000000000000005 R08: 00000000000000dd R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000246 R12: 00007f921e99c390
R13: 000000000000112c R14: 00007f921e99c390 R15: 00007ffe280bf118
INFO: task syz-executor.2:30495 blocked for more than 144 seconds.
Not tainted 6.6.0-rc6-syzkaller-00355-gfe3cfe869d5e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:27696 pid:30495 ppid:5073 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0xee1/0x5a10 kernel/sched/core.c:6695
schedule+0xe7/0x1b0 kernel/sched/core.c:6771
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6830
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x969/0x1340 kernel/locking/mutex.c:747
genl_lock net/netlink/genetlink.c:33 [inline]
genl_op_lock net/netlink/genetlink.c:58 [inline]
genl_op_lock net/netlink/genetlink.c:55 [inline]
genl_rcv_msg+0x577/0x800 net/netlink/genetlink.c:1065
netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2545
genl_rcv+0x28/0x40 net/netlink/genetlink.c:1075
netlink_unicast_kernel net/netlink/af_netlink.c:1342 [inline]
netlink_unicast+0x536/0x810 net/netlink/af_netlink.c:1368
netlink_sendmsg+0x93c/0xe40 net/netlink/af_netlink.c:1910
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0xd5/0x180 net/socket.c:745
__sys_sendto+0x255/0x340 net/socket.c:2194
__do_sys_sendto net/socket.c:2206 [inline]
__se_sys_sendto net/socket.c:2202 [inline]
__x64_sys_sendto+0xe0/0x1b0 net/socket.c:2202
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f811347e7dc
RSP: 002b:00007f8111fdbf60 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f8111fdc050 RCX: 00007f811347e7dc
RDX: 000000000000001c RSI: 00007f8111fdc0a0 RDI: 0000000000000005
RBP: 0000000000000000 R08: 00007f8111fdbfb4 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 00007f8111fdc008 R14: 00007f8111fdc0a0 R15: 0000000000000000
INFO: task syz-executor.2:30519 blocked for more than 144 seconds.
Not tainted 6.6.0-rc6-syzkaller-00355-gfe3cfe869d5e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:28432 pid:30519 ppid:5073 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0xee1/0x5a10 kernel/sched/core.c:6695
schedule+0xe7/0x1b0 kernel/sched/core.c:6771
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6830
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x969/0x1340 kernel/locking/mutex.c:747
nfc_unregister_device+0x1a2/0x330 net/nfc/core.c:1181
virtual_ncidev_close+0x51/0xa0 drivers/nfc/virtual_ncidev.c:163
__fput+0x3f7/0xa70 fs/file_table.c:384
task_work_run+0x14d/0x240 kernel/task_work.c:180
get_signal+0x106f/0x2790 kernel/signal.c:2668
arch_do_signal_or_restart+0x90/0x7f0 arch/x86/kernel/signal.c:309
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x1d/0x60 kernel/entry/common.c:296
do_syscall_64+0x44/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f811347cae9
RSP: 002b:00007f8111b7a0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: fffffffffffffff2 RBX: 00007f811359c2c0 RCX: 00007f811347cae9
RDX: 0000000000000064 RSI: 00000000200005c0 RDI: 0000000000000003
RBP: 00007f81134c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f811359c2c0 R15: 00007ffea0691978
INFO: task syz-executor.5:30484 blocked for more than 144 seconds.
Not tainted 6.6.0-rc6-syzkaller-00355-gfe3cfe869d5e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:26416 pid:30484 ppid:5070 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0xee1/0x5a10 kernel/sched/core.c:6695
schedule+0xe7/0x1b0 kernel/sched/core.c:6771
schedule_timeout+0x278/0x2c0 kernel/time/timer.c:2143
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common+0x3e0/0x5f0 kernel/sched/completion.c:116
__flush_workqueue+0x3e0/0x1320 kernel/workqueue.c:3195
nci_close_device+0x14c/0x380 net/nfc/nci/core.c:579
nci_unregister_device+0x36/0x300 net/nfc/nci/core.c:1297
virtual_ncidev_close+0x51/0xa0 drivers/nfc/virtual_ncidev.c:163
__fput+0x3f7/0xa70 fs/file_table.c:384
__fput_sync+0x47/0x50 fs/file_table.c:465
__do_sys_close fs/open.c:1572 [inline]
__se_sys_close fs/open.c:1557 [inline]
__x64_sys_close+0x87/0xf0 fs/open.c:1557
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fc31627b9da
RSP: 002b:00007ffe59732630 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fc31627b9da
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007fc31639d980 R08: 0000001b30320000 R09: 0000000000000015
R10: 0000000081925fdc R11: 0000000000000293 R12: 00000000001eb8a4
R13: ffffffffffffffff R14: 00007fc315e00000 R15: 00000000001eb367
INFO: task syz-executor.5:30498 blocked for more than 144 seconds.
Not tainted 6.6.0-rc6-syzkaller-00355-gfe3cfe869d5e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:27072 pid:30498 ppid:5070 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0xee1/0x5a10 kernel/sched/core.c:6695
schedule+0xe7/0x1b0 kernel/sched/core.c:6771
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6830
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x969/0x1340 kernel/locking/mutex.c:747
nci_request net/nfc/nci/core.c:149 [inline]
nci_set_local_general_bytes net/nfc/nci/core.c:775 [inline]
nci_start_poll+0x580/0x9b0 net/nfc/nci/core.c:839
nfc_start_poll+0x192/0x320 net/nfc/core.c:225
nfc_genl_start_poll+0x1ac/0x470 net/nfc/netlink.c:828
genl_family_rcv_msg_doit+0x1fc/0x2e0 net/netlink/genetlink.c:971
genl_family_rcv_msg net/netlink/genetlink.c:1051 [inline]
genl_rcv_msg+0x55c/0x800 net/netlink/genetlink.c:1066
netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2545
genl_rcv+0x28/0x40 net/netlink/genetlink.c:1075
netlink_unicast_kernel net/netlink/af_netlink.c:1342 [inline]
netlink_unicast+0x536/0x810 net/netlink/af_netlink.c:1368
netlink_sendmsg+0x93c/0xe40 net/netlink/af_netlink.c:1910
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0xd5/0x180 net/socket.c:745
____sys_sendmsg+0x6ac/0x940 net/socket.c:2558
___sys_sendmsg+0x135/0x1d0 net/socket.c:2612
__sys_sendmsg+0x117/0x1e0 net/socket.c:2641
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fc31627cae9
RSP: 002b:00007fc316f820c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fc31639c050 RCX: 00007fc31627cae9
RDX: 0000000000000000 RSI: 0000000020000440 RDI: 0000000000000005
RBP: 00007fc3162c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fc31639c050 R15: 00007ffe59732568
INFO: task syz-executor.5:30504 blocked for more than 145 seconds.
Not tainted 6.6.0-rc6-syzkaller-00355-gfe3cfe869d5e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:27760 pid:30504 ppid:5070 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0xee1/0x5a10 kernel/sched/core.c:6695
schedule+0xe7/0x1b0 kernel/sched/core.c:6771
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6830
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x969/0x1340 kernel/locking/mutex.c:747
genl_lock net/netlink/genetlink.c:33 [inline]
genl_op_lock net/netlink/genetlink.c:58 [inline]
genl_op_lock net/netlink/genetlink.c:55 [inline]
genl_rcv_msg+0x577/0x800 net/netlink/genetlink.c:1065
netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2545
genl_rcv+0x28/0x40 net/netlink/genetlink.c:1075
netlink_unicast_kernel net/netlink/af_netlink.c:1342 [inline]
netlink_unicast+0x536/0x810 net/netlink/af_netlink.c:1368
netlink_sendmsg+0x93c/0xe40 net/netlink/af_netlink.c:1910
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0xd5/0x180 net/socket.c:745
____sys_sendmsg+0x6ac/0x940 net/socket.c:2558
___sys_sendmsg+0x135/0x1d0 net/socket.c:2612
__sys_sendmsg+0x117/0x1e0 net/socket.c:2641
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fc31627cae9
RSP: 002b:00007fc316f610c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fc31639c120 RCX: 00007fc31627cae9
RDX: 0000000000000000 RSI: 0000000020000780 RDI: 0000000000000005
RBP: 00007fc3162c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fc31639c120 R15: 00007ffe59732568
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffffffff8cbab2e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:303 [inline]
#0: ffffffff8cbab2e0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:749 [inline]
#0: ffffffff8cbab2e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6613
2 locks held by syslogd/4470:
#0: ffff8880b993c718 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:558
#1: ffff8880b9928888 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x20c/0x900 kernel/sched/psi.c:987
2 locks held by dhcpcd/4701:
#0: ffffffff8e681f50 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1074
#1: ffffffff8e682008 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8e682008 (genl_mutex){+.+.}-{3:3}, at: genl_op_lock net/netlink/genetlink.c:58 [inline]
#1: ffffffff8e682008 (genl_mutex){+.+.}-{3:3}, at: genl_op_lock net/netlink/genetlink.c:55 [inline]
#1: ffffffff8e682008 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x577/0x800 net/netlink/genetlink.c:1065
2 locks held by getty/4787:
#0: ffff88802605c0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900031232f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc5/0x1480 drivers/tty/n_tty.c:2206
4 locks held by kworker/1:5/5133:
#0: ffff888012c70d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x787/0x15c0 kernel/workqueue.c:2605
#1: ffffc90003e8fd80 ((work_completion)(&w->w)){+.+.}-{0:0}, at: process_one_work+0x7e9/0x15c0 kernel/workqueue.c:2606
#2: ffffffff8eac6048 (nfc_devlist_mutex){+.+.}-{3:3}, at: nfc_urelease_event_work+0xbb/0x310 net/nfc/netlink.c:1843
#3: ffff88801d045508 (&genl_data->genl_data_mutex){+.+.}-{3:3}, at: nfc_urelease_event_work+0x173/0x310 net/nfc/netlink.c:1849
5 locks held by kworker/u4:4/8159:
2 locks held by kworker/u4:12/16820:
#0: ffff8880b993c718 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:558
#1: ffff8880b9928888 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x2d9/0x900 kernel/sched/psi.c:999
3 locks held by kworker/u4:15/28792:
#0: ffff88807c5e0d38 ((wq_completion)nfc2_nci_rx_wq#11){+.+.}-{0:0}, at: process_one_work+0x787/0x15c0 kernel/workqueue.c:2605
#1: ffffc9000504fd80 ((work_completion)(&ndev->rx_work)){+.+.}-{0:0}, at: process_one_work+0x7e9/0x15c0 kernel/workqueue.c:2606
#2: ffff88801d045100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:992 [inline]
#2: ffff88801d045100 (&dev->mutex){....}-{3:3}, at: nfc_targets_found+0xe8/0x3d0 net/nfc/core.c:778
1 lock held by syz-executor.1/30425:
#0: ffffffff8eac6048 (nfc_devlist_mutex){+.+.}-{3:3}, at: nfc_unregister_device+0x1a2/0x330 net/nfc/core.c:1181
2 locks held by syz-executor.2/30495:
#0: ffffffff8e681f50 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1074
#1: ffffffff8e682008 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8e682008 (genl_mutex){+.+.}-{3:3}, at: genl_op_lock net/netlink/genetlink.c:58 [inline]
#1: ffffffff8e682008 (genl_mutex){+.+.}-{3:3}, at: genl_op_lock net/netlink/genetlink.c:55 [inline]
#1: ffffffff8e682008 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x577/0x800 net/netlink/genetlink.c:1065
1 lock held by syz-executor.2/30519:
#0: ffffffff8eac6048 (nfc_devlist_mutex){+.+.}-{3:3}, at: nfc_unregister_device+0x1a2/0x330 net/nfc/core.c:1181
1 lock held by syz-executor.5/30484:
#0: ffff888081751350 (&ndev->req_lock){+.+.}-{3:3}, at: nci_close_device+0x6d/0x380 net/nfc/nci/core.c:561
5 locks held by syz-executor.5/30498:
#0: ffffffff8e681f50 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1074
#1: ffffffff8e682008 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8e682008 (genl_mutex){+.+.}-{3:3}, at: genl_op_lock net/netlink/genetlink.c:58 [inline]
#1: ffffffff8e682008 (genl_mutex){+.+.}-{3:3}, at: genl_op_lock net/netlink/genetlink.c:55 [inline]
#1: ffffffff8e682008 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x577/0x800 net/netlink/genetlink.c:1065
#2: ffff88801d045508 (&genl_data->genl_data_mutex){+.+.}-{3:3}, at: nfc_genl_start_poll+0x19e/0x470 net/nfc/netlink.c:826
#3: ffff88801d045100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:992 [inline]
#3: ffff88801d045100 (&dev->mutex){....}-{3:3}, at: nfc_start_poll+0x58/0x320 net/nfc/core.c:208
#4: ffff888081751350 (&ndev->req_lock){+.+.}-{3:3}, at: nci_request net/nfc/nci/core.c:149 [inline]
#4: ffff888081751350 (&ndev->req_lock){+.+.}-{3:3}, at: nci_set_local_general_bytes net/nfc/nci/core.c:775 [inline]
#4: ffff888081751350 (&ndev->req_lock){+.+.}-{3:3}, at: nci_start_poll+0x580/0x9b0 net/nfc/nci/core.c:839
2 locks held by syz-executor.5/30504:
#0: ffffffff8e681f50 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1074
#1: ffffffff8e682008 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8e682008 (genl_mutex){+.+.}-{3:3}, at: genl_op_lock net/netlink/genetlink.c:58 [inline]
#1: ffffffff8e682008 (genl_mutex){+.+.}-{3:3}, at: genl_op_lock net/netlink/genetlink.c:55 [inline]
#1: ffffffff8e682008 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x577/0x800 net/netlink/genetlink.c:1065
2 locks held by syz-executor.4/30555:
#0: ffffffff8d6f3028 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x59/0x4c0 drivers/char/misc.c:129
#1: ffffffff8eac6048 (nfc_devlist_mutex){+.+.}-{3:3}, at: nfc_register_device+0x32/0x3c0 net/nfc/core.c:1116
2 locks held by syz-executor.4/30561:
#0: ffffffff8e681f50 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1074
#1: ffffffff8e682008 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8e682008 (genl_mutex){+.+.}-{3:3}, at: genl_op_lock net/netlink/genetlink.c:58 [inline]
#1: ffffffff8e682008 (genl_mutex){+.+.}-{3:3}, at: genl_op_lock net/netlink/genetlink.c:55 [inline]
#1: ffffffff8e682008 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x577/0x800 net/netlink/genetlink.c:1065
1 lock held by syz-executor.0/30560:
#0: ffffffff8d6f3028 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x59/0x4c0 drivers/char/misc.c:129
2 locks held by syz-executor.0/30564:
#0: ffffffff8e681f50 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1074
#1: ffffffff8e682008 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8e682008 (genl_mutex){+.+.}-{3:3}, at: genl_op_lock net/netlink/genetlink.c:58 [inline]
#1: ffffffff8e682008 (genl_mutex){+.+.}-{3:3}, at: genl_op_lock net/netlink/genetlink.c:55 [inline]
#1: ffffffff8e682008 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x577/0x800 net/netlink/genetlink.c:1065
1 lock held by syz-executor.1/30587:
#0: ffffffff8d6f3028 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x59/0x4c0 drivers/char/misc.c:129
1 lock held by syz-executor.3/30589:
#0: ffffffff8d6f3028 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x59/0x4c0 drivers/char/misc.c:129
2 locks held by syz-executor.3/30590:
#0: ffffffff8e681f50 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1074
#1: ffffffff8e682008 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8e682008 (genl_mutex){+.+.}-{3:3}, at: genl_op_lock net/netlink/genetlink.c:58 [inline]
#1: ffffffff8e682008 (genl_mutex){+.+.}-{3:3}, at: genl_op_lock net/netlink/genetlink.c:55 [inline]
#1: ffffffff8e682008 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x577/0x800 net/netlink/genetlink.c:1065
1 lock held by syz-executor.5/30593:
#0: ffffffff8d6f3028 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x59/0x4c0 drivers/char/misc.c:129
1 lock held by syz-executor.2/30595:
#0: ffffffff8d6f3028 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x59/0x4c0 drivers/char/misc.c:129
1 lock held by syz-executor.0/30597:
#0: ffffffff8d6f3028 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x59/0x4c0 drivers/char/misc.c:129
1 lock held by syz-executor.1/30599:
#0: ffffffff8d6f3028 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x59/0x4c0 drivers/char/misc.c:129
1 lock held by syz-executor.5/30601:
#0: ffffffff8d6f3028 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x59/0x4c0 drivers/char/misc.c:129
1 lock held by syz-executor.2/30603:
#0: ffffffff8d6f3028 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x59/0x4c0 drivers/char/misc.c:129
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.6.0-rc6-syzkaller-00355-gfe3cfe869d5e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x277/0x380 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x299/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xf87/0x1210 kernel/hung_task.c:379
kthread+0x33c/0x440 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 8159 Comm: kworker/u4:4 Not tainted 6.6.0-rc6-syzkaller-00355-gfe3cfe869d5e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
Workqueue: bat_events batadv_nc_worker
RIP: 0010:lock_release+0x4/0x680 kernel/locking/lockdep.c:5761
Code: ff 48 89 cf e8 cd fe 74 00 e9 ce fd ff ff 48 c7 c7 14 af cc 8e e8 bc fe 74 00 e9 fe fe ff ff 0f 1f 80 00 00 00 00 f3 0f 1e fa <48> b8 00 00 00 00 00 fc ff df 41 57 41 56 41 55 41 54 49 89 fc 55
RSP: 0018:ffffc90014cffb40 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8a086887 RDI: ffffffff8cbab2e0
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff88801a6917a8 R14: ffff888024d10940 R15: ffffffff8a085dc0
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c0023a1000 CR3: 000000000c976000 CR4: 0000000000350ee0
Call Trace:
rcu_lock_release include/linux/rcupdate.h:308 [inline]
rcu_read_unlock include/linux/rcupdate.h:782 [inline]
batadv_nc_process_nc_paths.part.0+0x21c/0x3e0 net/batman-adv/network-coding.c:699
batadv_nc_process_nc_paths net/batman-adv/network-coding.c:679 [inline]
batadv_nc_worker+0xd4f/0x10e0 net/batman-adv/network-coding.c:728
process_one_work+0x884/0x15c0 kernel/workqueue.c:2630
process_scheduled_works kernel/workqueue.c:2703 [inline]
worker_thread+0x8b9/0x1290 kernel/workqueue.c:2784
kthread+0x33c/0x440 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304