INFO: task kworker/u4:7:5128 blocked for more than 143 seconds.
Not tainted 6.4.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:7 state:D stack:12120 pid:5128 ppid:2 flags:0x00004000
Workqueue: nfc3_nci_rx_wq nci_rx_work
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x6d1/0x13d0 kernel/sched/core.c:6669
schedule+0x68/0xc0 kernel/sched/core.c:6745
schedule_preempt_disabled+0x32/0x50 kernel/sched/core.c:6804
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x445/0x970 kernel/locking/mutex.c:747
device_lock include/linux/device.h:837 [inline]
nfc_targets_found+0xe9/0x1e0 net/nfc/core.c:778
nci_rf_discover_ntf_packet net/nfc/nci/ntf.c:390 [inline]
nci_ntf_packet+0x1519/0x18b0 net/nfc/nci/ntf.c:798
nci_rx_work+0xe2/0x1b0 net/nfc/nci/core.c:1517
process_one_work+0x316/0x730 kernel/workqueue.c:2405
worker_thread+0x328/0x580 kernel/workqueue.c:2552
kthread+0x10f/0x140 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: task kworker/1:7:5293 blocked for more than 143 seconds.
Not tainted 6.4.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:7 state:D stack:13512 pid:5293 ppid:2 flags:0x00004000
Workqueue: events nfc_urelease_event_work
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x6d1/0x13d0 kernel/sched/core.c:6669
schedule+0x68/0xc0 kernel/sched/core.c:6745
schedule_preempt_disabled+0x32/0x50 kernel/sched/core.c:6804
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x445/0x970 kernel/locking/mutex.c:747
nfc_urelease_event_work+0x9a/0x170 net/nfc/netlink.c:1839
process_one_work+0x316/0x730 kernel/workqueue.c:2405
worker_thread+0x328/0x580 kernel/workqueue.c:2552
kthread+0x10f/0x140 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: task syz-executor.0:6450 blocked for more than 143 seconds.
Not tainted 6.4.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:13824 pid:6450 ppid:5108 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x6d1/0x13d0 kernel/sched/core.c:6669
schedule+0x68/0xc0 kernel/sched/core.c:6745
schedule_timeout+0xa0/0x1b0 kernel/time/timer.c:2143
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common kernel/sched/completion.c:106 [inline]
wait_for_common+0xfa/0x1b0 kernel/sched/completion.c:117
__flush_workqueue+0x462/0x850 kernel/workqueue.c:2977
nci_close_device+0xc4/0x240 net/nfc/nci/core.c:579
nci_unregister_device+0x24/0xd0 net/nfc/nci/core.c:1292
virtual_ncidev_close+0x1c/0x40 drivers/nfc/virtual_ncidev.c:163
__fput+0x1b8/0x450 fs/file_table.c:321
task_work_run+0xfe/0x130 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xb8/0xe0 kernel/entry/common.c:171
exit_to_user_mode_prepare+0x6c/0xc0 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x2c/0x1d0 kernel/entry/common.c:297
do_syscall_64+0x4f/0xc0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fe91ac7bc1a
RSP: 002b:00007ffd57d8e9a0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007fe91ac7bc1a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007fe91adad980 R08: 0000001b32860000 R09: 0000000000000010
R10: 00007ffd57df0080 R11: 0000000000000293 R12: 0000000000015369
R13: ffffffffffffffff R14: 00007fe91a800000 R15: 0000000000015028
INFO: task syz-executor.0:6455 blocked for more than 143 seconds.
Not tainted 6.4.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:12648 pid:6455 ppid:5108 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x6d1/0x13d0 kernel/sched/core.c:6669
schedule+0x68/0xc0 kernel/sched/core.c:6745
schedule_preempt_disabled+0x32/0x50 kernel/sched/core.c:6804
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x445/0x970 kernel/locking/mutex.c:747
nci_request net/nfc/nci/core.c:149 [inline]
nci_start_poll+0x69b/0x920 net/nfc/nci/core.c:854
nfc_start_poll+0xd4/0x150 net/nfc/core.c:225
nfc_genl_start_poll+0xdd/0x170 net/nfc/netlink.c:828
genl_family_rcv_msg_doit net/netlink/genetlink.c:968 [inline]
genl_family_rcv_msg net/netlink/genetlink.c:1048 [inline]
genl_rcv_msg+0x552/0x5e0 net/netlink/genetlink.c:1065
netlink_rcv_skb+0xe4/0x1b0 net/netlink/af_netlink.c:2546
genl_rcv+0x28/0x40 net/netlink/genetlink.c:1076
netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]
netlink_unicast+0x46b/0x530 net/netlink/af_netlink.c:1365
netlink_sendmsg+0x583/0x660 net/netlink/af_netlink.c:1913
sock_sendmsg_nosec net/socket.c:724 [inline]
sock_sendmsg net/socket.c:747 [inline]
____sys_sendmsg+0x2b4/0x3d0 net/socket.c:2503
___sys_sendmsg+0x2f0/0x330 net/socket.c:2557
__sys_sendmsg net/socket.c:2586 [inline]
__do_sys_sendmsg net/socket.c:2595 [inline]
__se_sys_sendmsg+0x142/0x1b0 net/socket.c:2593
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x42/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fe91ac7cd29
RSP: 002b:00007fe91b9e80c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fe91adac050 RCX: 00007fe91ac7cd29
RDX: 0000000000000000 RSI: 0000000020000440 RDI: 0000000000000005
RBP: 00007fe91acc947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fe91adac050 R15: 00007ffd57d8e8d8
INFO: task syz-executor.5:6458 blocked for more than 144 seconds.
Not tainted 6.4.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:13456 pid:6458 ppid:5106 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x6d1/0x13d0 kernel/sched/core.c:6669
schedule+0x68/0xc0 kernel/sched/core.c:6745
schedule_preempt_disabled+0x32/0x50 kernel/sched/core.c:6804
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x445/0x970 kernel/locking/mutex.c:747
nfc_register_device+0x2c/0x200 net/nfc/core.c:1116
nci_register_device+0x3e1/0x460 net/nfc/nci/core.c:1257
virtual_ncidev_open+0xa1/0x100 drivers/nfc/virtual_ncidev.c:148
misc_open+0x164/0x1a0 drivers/char/misc.c:165
chrdev_open+0x286/0x2f0 fs/char_dev.c:414
do_dentry_open+0x42e/0x700 fs/open.c:920
do_open fs/namei.c:3636 [inline]
path_openat+0x1280/0x1690 fs/namei.c:3791
do_filp_open+0xc9/0x1b0 fs/namei.c:3818
do_sys_openat2+0xb5/0x250 fs/open.c:1356
do_sys_open fs/open.c:1372 [inline]
__do_sys_openat fs/open.c:1388 [inline]
__se_sys_openat fs/open.c:1383 [inline]
__x64_sys_openat+0xcf/0xf0 fs/open.c:1383
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x42/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7efcc007cd29
RSP: 002b:00007efcc0dbc0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007efcc01abf80 RCX: 00007efcc007cd29
RDX: 0000000000000002 RSI: 0000000020000080 RDI: ffffffffffffff9c
RBP: 00007efcc00c947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007efcc01abf80 R15: 00007fff0539e708
INFO: task syz-executor.5:6469 blocked for more than 144 seconds.
Not tainted 6.4.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:14192 pid:6469 ppid:5106 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x6d1/0x13d0 kernel/sched/core.c:6669
schedule+0x68/0xc0 kernel/sched/core.c:6745
schedule_preempt_disabled+0x32/0x50 kernel/sched/core.c:6804
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x445/0x970 kernel/locking/mutex.c:747
genl_lock net/netlink/genetlink.c:33 [inline]
genl_rcv_msg+0x75/0x5e0 net/netlink/genetlink.c:1063
netlink_rcv_skb+0xe4/0x1b0 net/netlink/af_netlink.c:2546
genl_rcv+0x28/0x40 net/netlink/genetlink.c:1076
netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]
netlink_unicast+0x46b/0x530 net/netlink/af_netlink.c:1365
netlink_sendmsg+0x583/0x660 net/netlink/af_netlink.c:1913
sock_sendmsg_nosec net/socket.c:724 [inline]
sock_sendmsg net/socket.c:747 [inline]
__sys_sendto+0x386/0x460 net/socket.c:2144
__do_sys_sendto net/socket.c:2156 [inline]
__se_sys_sendto net/socket.c:2152 [inline]
__x64_sys_sendto+0x28/0x30 net/socket.c:2152
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x42/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7efcc007ea1c
RSP: 002b:00007efcc0d99f60 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007efcc0d9a050 RCX: 00007efcc007ea1c
RDX: 000000000000001c RSI: 00007efcc0d9a0a0 RDI: 0000000000000005
RBP: 0000000000000000 R08: 00007efcc0d99fb4 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000005
R13: 00007efcc0d9a008 R14: 00007efcc0d9a0a0 R15: 0000000000000000
INFO: task syz-executor.4:6459 blocked for more than 144 seconds.
Not tainted 6.4.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:14392 pid:6459 ppid:5107 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x6d1/0x13d0 kernel/sched/core.c:6669
schedule+0x68/0xc0 kernel/sched/core.c:6745
schedule_preempt_disabled+0x32/0x50 kernel/sched/core.c:6804
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x445/0x970 kernel/locking/mutex.c:747
misc_open+0x2e/0x1a0 drivers/char/misc.c:129
chrdev_open+0x286/0x2f0 fs/char_dev.c:414
do_dentry_open+0x42e/0x700 fs/open.c:920
do_open fs/namei.c:3636 [inline]
path_openat+0x1280/0x1690 fs/namei.c:3791
do_filp_open+0xc9/0x1b0 fs/namei.c:3818
do_sys_openat2+0xb5/0x250 fs/open.c:1356
do_sys_open fs/open.c:1372 [inline]
__do_sys_openat fs/open.c:1388 [inline]
__se_sys_openat fs/open.c:1383 [inline]
__x64_sys_openat+0xcf/0xf0 fs/open.c:1383
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x42/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd41ec7cd29
RSP: 002b:00007fd41fa430c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fd41edabf80 RCX: 00007fd41ec7cd29
RDX: 0000000000000002 RSI: 0000000020000080 RDI: ffffffffffffff9c
RBP: 00007fd41ecc947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fd41edabf80 R15: 00007ffff937e868
INFO: task syz-executor.4:6470 blocked for more than 144 seconds.
Not tainted 6.4.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:14192 pid:6470 ppid:5107 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x6d1/0x13d0 kernel/sched/core.c:6669
schedule+0x68/0xc0 kernel/sched/core.c:6745
schedule_preempt_disabled+0x32/0x50 kernel/sched/core.c:6804
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x445/0x970 kernel/locking/mutex.c:747
genl_lock net/netlink/genetlink.c:33 [inline]
genl_rcv_msg+0x75/0x5e0 net/netlink/genetlink.c:1063
netlink_rcv_skb+0xe4/0x1b0 net/netlink/af_netlink.c:2546
genl_rcv+0x28/0x40 net/netlink/genetlink.c:1076
netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]
netlink_unicast+0x46b/0x530 net/netlink/af_netlink.c:1365
netlink_sendmsg+0x583/0x660 net/netlink/af_netlink.c:1913
sock_sendmsg_nosec net/socket.c:724 [inline]
sock_sendmsg net/socket.c:747 [inline]
__sys_sendto+0x386/0x460 net/socket.c:2144
__do_sys_sendto net/socket.c:2156 [inline]
__se_sys_sendto net/socket.c:2152 [inline]
__x64_sys_sendto+0x28/0x30 net/socket.c:2152
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x42/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd41ec7ea1c
RSP: 002b:00007fd41fa20f60 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007fd41fa21050 RCX: 00007fd41ec7ea1c
RDX: 000000000000001c RSI: 00007fd41fa210a0 RDI: 0000000000000005
RBP: 0000000000000000 R08: 00007fd41fa20fb4 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000005
R13: 00007fd41fa21008 R14: 00007fd41fa210a0 R15: 0000000000000000
INFO: task syz-executor.3:6464 blocked for more than 144 seconds.
Not tainted 6.4.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:14392 pid:6464 ppid:5101 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x6d1/0x13d0 kernel/sched/core.c:6669
schedule+0x68/0xc0 kernel/sched/core.c:6745
schedule_preempt_disabled+0x32/0x50 kernel/sched/core.c:6804
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x445/0x970 kernel/locking/mutex.c:747
misc_open+0x2e/0x1a0 drivers/char/misc.c:129
chrdev_open+0x286/0x2f0 fs/char_dev.c:414
do_dentry_open+0x42e/0x700 fs/open.c:920
do_open fs/namei.c:3636 [inline]
path_openat+0x1280/0x1690 fs/namei.c:3791
do_filp_open+0xc9/0x1b0 fs/namei.c:3818
do_sys_openat2+0xb5/0x250 fs/open.c:1356
do_sys_open fs/open.c:1372 [inline]
__do_sys_openat fs/open.c:1388 [inline]
__se_sys_openat fs/open.c:1383 [inline]
__x64_sys_openat+0xcf/0xf0 fs/open.c:1383
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x42/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f3ee267cd29
RSP: 002b:00007f3ee34920c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f3ee27abf80 RCX: 00007f3ee267cd29
RDX: 0000000000000002 RSI: 0000000020000080 RDI: ffffffffffffff9c
RBP: 00007f3ee26c947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f3ee27abf80 R15: 00007ffeaeb964b8
INFO: task syz-executor.3:6472 blocked for more than 144 seconds.
Not tainted 6.4.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:13952 pid:6472 ppid:5101 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x6d1/0x13d0 kernel/sched/core.c:6669
schedule+0x68/0xc0 kernel/sched/core.c:6745
schedule_preempt_disabled+0x32/0x50 kernel/sched/core.c:6804
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x445/0x970 kernel/locking/mutex.c:747
genl_lock net/netlink/genetlink.c:33 [inline]
genl_rcv_msg+0x75/0x5e0 net/netlink/genetlink.c:1063
netlink_rcv_skb+0xe4/0x1b0 net/netlink/af_netlink.c:2546
genl_rcv+0x28/0x40 net/netlink/genetlink.c:1076
netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]
netlink_unicast+0x46b/0x530 net/netlink/af_netlink.c:1365
netlink_sendmsg+0x583/0x660 net/netlink/af_netlink.c:1913
sock_sendmsg_nosec net/socket.c:724 [inline]
sock_sendmsg net/socket.c:747 [inline]
__sys_sendto+0x386/0x460 net/socket.c:2144
__do_sys_sendto net/socket.c:2156 [inline]
__se_sys_sendto net/socket.c:2152 [inline]
__x64_sys_sendto+0x28/0x30 net/socket.c:2152
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x42/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f3ee267ea1c
RSP: 002b:00007f3ee346ff60 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f3ee3470050 RCX: 00007f3ee267ea1c
RDX: 000000000000001c RSI: 00007f3ee34700a0 RDI: 0000000000000005
RBP: 0000000000000000 R08: 00007f3ee346ffb4 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000005
R13: 00007f3ee3470008 R14: 00007f3ee34700a0 R15: 0000000000000000
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff85dfd018 (rcu_tasks.tasks_gp_mutex){....}-{3:3}, at: rcu_tasks_one_gp kernel/rcu/tasks.h:518 [inline]
#0: ffffffff85dfd018 (rcu_tasks.tasks_gp_mutex){....}-{3:3}, at: rcu_tasks_kthread+0x9c/0x460 kernel/rcu/tasks.h:563
1 lock held by rcu_tasks_trace/14:
#0: ffffffff85dfd2f8 (rcu_tasks_trace.tasks_gp_mutex){....}-{3:3}, at: rcu_tasks_one_gp kernel/rcu/tasks.h:518 [inline]
#0: ffffffff85dfd2f8 (rcu_tasks_trace.tasks_gp_mutex){....}-{3:3}, at: rcu_tasks_kthread+0x9c/0x460 kernel/rcu/tasks.h:563
1 lock held by khungtaskd/28:
#0: ffffffff85dfcef0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 arch/x86/kernel/nmi.c:311
2 locks held by getty/4470:
#0: ffff88810d803898 (&tty->ldisc_sem){....}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x50 drivers/tty/tty_ldisc.c:243
#1: ffffc9000c8d72f0 (&ldata->atomic_read_lock){....}-{3:3}, at: n_tty_read+0x319/0xf00 drivers/tty/n_tty.c:2176
3 locks held by kworker/u4:7/5128:
#0: ffff888122f0e538 ((wq_completion)nfc3_nci_rx_wq){....}-{0:0}, at: process_one_work+0x26a/0x730 kernel/workqueue.c:2378
#1: ffffc90002b9fe60 ((work_completion)(&ndev->rx_work)){....}-{0:0}, at: process_one_work+0x294/0x730 kernel/workqueue.c:2380
#2: ffff88812401e100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:837 [inline]
#2: ffff88812401e100 (&dev->mutex){....}-{3:3}, at: nfc_targets_found+0xe9/0x1e0 net/nfc/core.c:778
4 locks held by kworker/1:7/5293:
#0: ffff88810006a738 ((wq_completion)events){....}-{0:0}, at: process_one_work+0x26a/0x730 kernel/workqueue.c:2378
#1: ffffc90002e7fe60 ((work_completion)(&w->w)){....}-{0:0}, at: process_one_work+0x294/0x730 kernel/workqueue.c:2380
#2: ffffffff8626d228 (nfc_devlist_mutex){....}-{3:3}, at: nfc_urelease_event_work+0x5a/0x170 net/nfc/netlink.c:1833
#3: ffff88812401e500 (&genl_data->genl_data_mutex){....}-{3:3}, at: nfc_urelease_event_work+0x9a/0x170 net/nfc/netlink.c:1839
4 locks held by kworker/1:12/5918:
#0: ffff88813bd2fcd8 (&rq->__lock){....}-{2:2}, at: raw_spin_rq_lock_nested+0x23/0xf0 kernel/sched/core.c:558
#1: ffff88813bd1c788 (&per_cpu_ptr(group->pcpu, cpu)->seq){....}-{0:0}, at: psi_task_switch+0x21c/0x2c0 kernel/sched/psi.c:984
#2: ffff88813bd1c788 (&per_cpu_ptr(group->pcpu, cpu)->seq){....}-{0:0}, at: psi_task_change+0xeb/0x100 kernel/sched/psi.c:920
#3: ffffffff881534c8 (&obj_hash[i].lock){....}-{2:2}, at: debug_object_activate+0x8a/0x2b0 lib/debugobjects.c:697
1 lock held by syz-executor.0/6450:
#0: ffff88812401f350 (&ndev->req_lock){....}-{3:3}, at: nci_close_device+0x71/0x240 net/nfc/nci/core.c:561
5 locks held by syz-executor.0/6455:
#0: ffffffff861c3738 (cb_lock){....}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1075
#1: ffffffff861c3648 (genl_mutex){....}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff861c3648 (genl_mutex){....}-{3:3}, at: genl_rcv_msg+0x75/0x5e0 net/netlink/genetlink.c:1063
#2: ffff88812401e500 (&genl_data->genl_data_mutex){....}-{3:3}, at: nfc_genl_start_poll+0xd0/0x170 net/nfc/netlink.c:826
#3: ffff88812401e100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:837 [inline]
#3: ffff88812401e100 (&dev->mutex){....}-{3:3}, at: nfc_start_poll+0x47/0x150 net/nfc/core.c:208
#4: ffff88812401f350 (&ndev->req_lock){....}-{3:3}, at: nci_request net/nfc/nci/core.c:149 [inline]
#4: ffff88812401f350 (&ndev->req_lock){....}-{3:3}, at: nci_start_poll+0x69b/0x920 net/nfc/nci/core.c:854
2 locks held by syz-executor.5/6458:
#0: ffffffff85f989a8 (misc_mtx){....}-{3:3}, at: misc_open+0x2e/0x1a0 drivers/char/misc.c:129
#1: ffffffff8626d228 (nfc_devlist_mutex){....}-{3:3}, at: nfc_register_device+0x2c/0x200 net/nfc/core.c:1116
2 locks held by syz-executor.5/6469:
#0: ffffffff861c3738 (cb_lock){....}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1075
#1: ffffffff861c3648 (genl_mutex){....}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff861c3648 (genl_mutex){....}-{3:3}, at: genl_rcv_msg+0x75/0x5e0 net/netlink/genetlink.c:1063
1 lock held by syz-executor.4/6459:
#0: ffffffff85f989a8 (misc_mtx){....}-{3:3}, at: misc_open+0x2e/0x1a0 drivers/char/misc.c:129
2 locks held by syz-executor.4/6470:
#0: ffffffff861c3738 (cb_lock){....}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1075
#1: ffffffff861c3648 (genl_mutex){....}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff861c3648 (genl_mutex){....}-{3:3}, at: genl_rcv_msg+0x75/0x5e0 net/netlink/genetlink.c:1063
1 lock held by syz-executor.3/6464:
#0: ffffffff85f989a8 (misc_mtx){....}-{3:3}, at: misc_open+0x2e/0x1a0 drivers/char/misc.c:129
2 locks held by syz-executor.3/6472:
#0: ffffffff861c3738 (cb_lock){....}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1075
#1: ffffffff861c3648 (genl_mutex){....}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff861c3648 (genl_mutex){....}-{3:3}, at: genl_rcv_msg+0x75/0x5e0 net/netlink/genetlink.c:1063
1 lock held by syz-executor.2/6462:
#0: ffffffff85f989a8 (misc_mtx){....}-{3:3}, at: misc_open+0x2e/0x1a0 drivers/char/misc.c:129
2 locks held by syz-executor.2/6471:
#0: ffffffff861c3738 (cb_lock){....}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1075
#1: ffffffff861c3648 (genl_mutex){....}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff861c3648 (genl_mutex){....}-{3:3}, at: genl_rcv_msg+0x75/0x5e0 net/netlink/genetlink.c:1063
1 lock held by syz-executor.1/6468:
#0: ffffffff85f989a8 (misc_mtx){....}-{3:3}, at: misc_open+0x2e/0x1a0 drivers/char/misc.c:129
2 locks held by syz-executor.1/6473:
#0: ffffffff861c3738 (cb_lock){....}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1075
#1: ffffffff861c3648 (genl_mutex){....}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff861c3648 (genl_mutex){....}-{3:3}, at: genl_rcv_msg+0x75/0x5e0 net/netlink/genetlink.c:1063
1 lock held by syz-executor.0/6484:
#0: ffffffff85f989a8 (misc_mtx){....}-{3:3}, at: misc_open+0x2e/0x1a0 drivers/char/misc.c:129
1 lock held by syz-executor.5/6490:
#0: ffffffff85f989a8 (misc_mtx){....}-{3:3}, at: misc_open+0x2e/0x1a0 drivers/char/misc.c:129
1 lock held by syz-executor.3/6491:
#0: ffffffff85f989a8 (misc_mtx){....}-{3:3}, at: misc_open+0x2e/0x1a0 drivers/char/misc.c:129
1 lock held by syz-executor.4/6493:
#0: ffffffff85f989a8 (misc_mtx){....}-{3:3}, at: misc_open+0x2e/0x1a0 drivers/char/misc.c:129
1 lock held by syz-executor.2/6492:
#0: ffffffff85f989a8 (misc_mtx){....}-{3:3}, at: misc_open+0x2e/0x1a0 drivers/char/misc.c:129
1 lock held by syz-executor.1/6494:
#0: ffffffff85f989a8 (misc_mtx){....}-{3:3}, at: misc_open+0x2e/0x1a0 drivers/char/misc.c:129
1 lock held by syz-executor.0/6496:
#0: ffffffff85f989a8 (misc_mtx){....}-{3:3}, at: misc_open+0x2e/0x1a0 drivers/char/misc.c:129
1 lock held by syz-executor.5/6502:
#0: ffffffff85f989a8 (misc_mtx){....}-{3:3}, at: misc_open+0x2e/0x1a0 drivers/char/misc.c:129
1 lock held by syz-executor.2/6503:
#0: ffffffff85f989a8 (misc_mtx){....}-{3:3}, at: misc_open+0x2e/0x1a0 drivers/char/misc.c:129
1 lock held by syz-executor.1/6504:
#0: ffffffff85f989a8 (misc_mtx){....}-{3:3}, at: misc_open+0x2e/0x1a0 drivers/char/misc.c:129
1 lock held by syz-executor.3/6505:
#0: ffffffff85f989a8 (misc_mtx){....}-{3:3}, at: misc_open+0x2e/0x1a0 drivers/char/misc.c:129
1 lock held by syz-executor.4/6506:
#0: ffffffff85f989a8 (misc_mtx){....}-{3:3}, at: misc_open+0x2e/0x1a0 drivers/char/misc.c:129
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.4.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xf4/0x180 lib/dump_stack.c:106
nmi_cpu_backtrace+0x230/0x250 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0xf2/0x200 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0x81f/0x860 kernel/hung_task.c:379
kthread+0x10f/0x140 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 36 Comm: kworker/u4:2 Not tainted 6.4.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Workqueue: phy11 ieee80211_iface_work
RIP: 0010:__lock_acquire+0x3a/0x4c0 kernel/locking/lockdep.c:4950
Code: 8b 35 8a 03 dc 7e 83 3d 77 09 14 05 00 0f 84 0c 02 00 00 4c 89 cb 89 cd 41 89 d5 49 89 ff 83 fe 01 77 0c 89 f0 49 8b 44 c7 08 <48> 85 c0 75 1b 4c 89 ff 31 d2 45 89 c4 e8 44 f6 ff ff 31 ff 45 89
RSP: 0018:ffffc9000019fc20 EFLAGS: 00000097
RAX: ffffffff87618130 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff880e2d58
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000002 R11: ffff888102e69c40 R12: 0000000000000000
R13: 0000000000000000 R14: ffff888102e69c40 R15: ffffffff880e2d58
FS: 0000000000000000(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000001f0c920 CR3: 000000010e46e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0xd8/0x1f0 kernel/locking/lockdep.c:5691
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x53/0x80 kernel/locking/spinlock.c:162
__debug_check_no_obj_freed lib/debugobjects.c:1000 [inline]
debug_check_no_obj_freed+0xc7/0x260 lib/debugobjects.c:1043
slab_free_hook mm/slub.c:1756 [inline]
slab_free_freelist_hook mm/slub.c:1807 [inline]
slab_free mm/slub.c:3786 [inline]
kmem_cache_free+0x283/0x4e0 mm/slub.c:3808
kfree_skb include/linux/skbuff.h:1236 [inline]
ieee80211_iface_work+0x512/0x700 net/mac80211/iface.c:1650
process_one_work+0x316/0x730 kernel/workqueue.c:2405
worker_thread+0x328/0x580 kernel/workqueue.c:2552
kthread+0x10f/0x140 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308