INFO: task kworker/u9:2:5834 blocked for more than 143 seconds.
Not tainted 6.13.0-rc3-syzkaller-00174-ga024e377efed #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u9:2 state:D stack:25552 pid:5834 tgid:5834 ppid:2 flags:0x00004000
Workqueue: hci4 hci_cmd_sync_work
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
__mutex_lock_common kernel/locking/mutex.c:665 [inline]
__mutex_lock+0x7e7/0xee0 kernel/locking/mutex.c:735
hci_abort_conn_sync+0x1e4/0x11f0 net/bluetooth/hci_sync.c:5584
hci_cmd_sync_work+0x22b/0x400 net/bluetooth/hci_sync.c:332
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</TASK>
INFO: task khidpd_046d865a:8243 blocked for more than 143 seconds.
Not tainted 6.13.0-rc3-syzkaller-00174-ga024e377efed #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:khidpd_046d865a state:D stack:28496 pid:8243 tgid:8243 ppid:2 flags:0x00004000
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_timeout+0xb0/0x290 kernel/time/sleep_timeout.c:75
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common kernel/sched/completion.c:116 [inline]
wait_for_common kernel/sched/completion.c:127 [inline]
wait_for_completion+0x355/0x620 kernel/sched/completion.c:148
__flush_work+0xa37/0xc50 kernel/workqueue.c:4231
__cancel_work_sync+0xbc/0x110 kernel/workqueue.c:4351
hidp_session_remove+0x64/0x260 net/bluetooth/hidp/core.c:1169
l2cap_unregister_user+0x19c/0x1c0 net/bluetooth/l2cap_core.c:1732
hidp_session_thread+0x450/0x490 net/bluetooth/hidp/core.c:1304
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</TASK>
INFO: task syz.3.670:8425 blocked for more than 144 seconds.
Not tainted 6.13.0-rc3-syzkaller-00174-ga024e377efed #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.670 state:D stack:27328 pid:8425 tgid:8423 ppid:5838 flags:0x00000004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
__mutex_lock_common kernel/locking/mutex.c:665 [inline]
__mutex_lock+0x7e7/0xee0 kernel/locking/mutex.c:735
l2cap_chan_connect+0xff/0xeb0 net/bluetooth/l2cap_core.c:6954
l2cap_sock_connect+0x5c9/0x800 net/bluetooth/l2cap_sock.c:256
__sys_connect_file net/socket.c:2055 [inline]
__sys_connect+0x288/0x2d0 net/socket.c:2074
__do_sys_connect net/socket.c:2080 [inline]
__se_sys_connect net/socket.c:2077 [inline]
__x64_sys_connect+0x7a/0x90 net/socket.c:2077
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe874385d29
RSP: 002b:00007fe8751bf038 EFLAGS: 00000246
ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 00007fe874575fa0 RCX: 00007fe874385d29
RDX: 000000000000000e RSI: 0000000020000040 RDI: 0000000000000004
RBP: 00007fe874401b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fe874575fa0 R15: 00007fff19500d98
</TASK>
INFO: task syz.4.694:8501 blocked for more than 144 seconds.
Not tainted 6.13.0-rc3-syzkaller-00174-ga024e377efed #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.694 state:D stack:25912 pid:8501 tgid:8500 ppid:5843 flags:0x00000004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
__mutex_lock_common kernel/locking/mutex.c:665 [inline]
__mutex_lock+0x7e7/0xee0 kernel/locking/mutex.c:735
l2cap_chan_connect+0xff/0xeb0 net/bluetooth/l2cap_core.c:6954
l2cap_sock_connect+0x5c9/0x800 net/bluetooth/l2cap_sock.c:256
__sys_connect_file net/socket.c:2055 [inline]
__sys_connect+0x288/0x2d0 net/socket.c:2074
__do_sys_connect net/socket.c:2080 [inline]
__se_sys_connect net/socket.c:2077 [inline]
__x64_sys_connect+0x7a/0x90 net/socket.c:2077
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f79d6d85d29
RSP: 002b:00007f79d7b31038 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 00007f79d6f75fa0 RCX: 00007f79d6d85d29
RDX: 000000000000000e RSI: 0000000020000080 RDI: 0000000000000008
RBP: 00007f79d6e01b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f79d6f75fa0 R15: 00007ffc27f73368
</TASK>
INFO: task syz.4.694:8502 blocked for more than 144 seconds.
Not tainted 6.13.0-rc3-syzkaller-00174-ga024e377efed #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.694 state:D stack:23544 pid:8502 tgid:8500 ppid:5843 flags:0x00000004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
rwsem_down_read_slowpath kernel/locking/rwsem.c:1084 [inline]
__down_read_common kernel/locking/rwsem.c:1248 [inline]
__down_read kernel/locking/rwsem.c:1261 [inline]
down_read+0x705/0xa40 kernel/locking/rwsem.c:1526
hidp_session_find+0x1c/0x110 net/bluetooth/hidp/core.c:1026
hidp_connection_del+0x52/0x160 net/bluetooth/hidp/core.c:1399
do_hidp_sock_ioctl net/bluetooth/hidp/sock.c:97 [inline]
hidp_sock_ioctl+0x3a5/0x870 net/bluetooth/hidp/sock.c:128
sock_do_ioctl+0x158/0x460 net/socket.c:1209
sock_ioctl+0x626/0x8e0 net/socket.c:1328
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:906 [inline]
__se_sys_ioctl+0xf5/0x170 fs/ioctl.c:892
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f79d6d85d29
RSP: 002b:00007f79d7b10038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f79d6f76080 RCX: 00007f79d6d85d29
RDX: 0000000020000000 RSI: 00000000400448c9 RDI: 0000000000000009
RBP: 00007f79d6e01b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f79d6f76080 R15: 00007ffc27f73368
</TASK>
INFO: task syz.2.722:8603 blocked for more than 144 seconds.
Not tainted 6.13.0-rc3-syzkaller-00174-ga024e377efed #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.722 state:D stack:24248 pid:8603 tgid:8594 ppid:5842 flags:0x00000004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
__mutex_lock_common kernel/locking/mutex.c:665 [inline]
__mutex_lock+0x7e7/0xee0 kernel/locking/mutex.c:735
l2cap_chan_connect+0xff/0xeb0 net/bluetooth/l2cap_core.c:6954
l2cap_sock_connect+0x5c9/0x800 net/bluetooth/l2cap_sock.c:256
__sys_connect_file net/socket.c:2055 [inline]
__sys_connect+0x288/0x2d0 net/socket.c:2074
__do_sys_connect net/socket.c:2080 [inline]
__se_sys_connect net/socket.c:2077 [inline]
__x64_sys_connect+0x7a/0x90 net/socket.c:2077
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f666af85d29
RSP: 002b:00007f666bdba038 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 00007f666b176160 RCX: 00007f666af85d29
RDX: 000000000000000e RSI: 0000000020000040 RDI: 0000000000000009
RBP: 00007f666b001b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f666b176160 R15: 00007ffd557feb48
</TASK>
INFO: task syz.0.744:8677 blocked for more than 144 seconds.
Not tainted 6.13.0-rc3-syzkaller-00174-ga024e377efed #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.744 state:D stack:23544 pid:8677 tgid:8674 ppid:5829 flags:0x00000004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
rwsem_down_read_slowpath kernel/locking/rwsem.c:1084 [inline]
__down_read_common kernel/locking/rwsem.c:1248 [inline]
__down_read kernel/locking/rwsem.c:1261 [inline]
down_read+0x705/0xa40 kernel/locking/rwsem.c:1526
hidp_get_connlist+0x98/0x2b0 net/bluetooth/hidp/core.c:1423
do_hidp_sock_ioctl net/bluetooth/hidp/sock.c:106 [inline]
hidp_sock_ioctl+0x34e/0x870 net/bluetooth/hidp/sock.c:128
sock_do_ioctl+0x158/0x460 net/socket.c:1209
sock_ioctl+0x626/0x8e0 net/socket.c:1328
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:906 [inline]
__se_sys_ioctl+0xf5/0x170 fs/ioctl.c:892
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f20e7585d29
RSP: 002b:00007f20e73f9038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f20e7775fa0 RCX: 00007f20e7585d29
RDX: 0000000020000000 RSI: 00000000800448d2 RDI: 000000000000000a
RBP: 00007f20e7601b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f20e7775fa0 R15: 00007ffc6f40eee8
</TASK>
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6744
5 locks held by kworker/0:2/974:
4 locks held by kworker/u8:8/3453:
#0: ffff88801baed948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff88801baed948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310
#1: ffffc9000ca5fd00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc9000ca5fd00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310
#2: ffffffff8fca65d0 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0x16a/0xd50 net/core/net_namespace.c:602
#3: ffffffff8fcb2a88 (rtnl_mutex){+.+.}-{4:4}, at: cfg802154_pernet_exit+0x1b/0xe0 net/ieee802154/core.c:351
2 locks held by getty/5588:
#0: ffff88814d4e70a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002fd62f0 (&ldata->atomic_read_lock
){+.+.}-{4:4}
, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
4 locks held by kworker/u9:2/5834:
#0:
ffff888062bc9948
((wq_completion)hci4){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
((wq_completion)hci4){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310
#1: ffffc90003f47d00 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc90003f47d00 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310
#2: ffff888062418d80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_cmd_sync_work+0x1ec/0x400 net/bluetooth/hci_sync.c:331
#3: ffff888062418078 (&hdev->lock){+.+.}-{4:4}, at: hci_abort_conn_sync+0x1e4/0x11f0 net/bluetooth/hci_sync.c:5584
2 locks held by khidpd_046d865a/8243:
#0: ffff888062418078 (&hdev->lock){+.+.}-{4:4}, at: l2cap_unregister_user+0x6a/0x1c0 net/bluetooth/l2cap_core.c:1726
#1: ffffffff8fe3b650 (hidp_session_sem){++++}-{4:4}, at: hidp_session_remove+0x2d/0x260 net/bluetooth/hidp/core.c:1165
1 lock held by syz.3.670/8425:
#0:
ffff888062418078 (&hdev->lock){+.+.}-{4:4}, at: l2cap_chan_connect+0xff/0xeb0 net/bluetooth/l2cap_core.c:6954
1 lock held by syz.4.694/8501:
#0: ffff888062418078 (&hdev->lock){+.+.}-{4:4}, at: l2cap_chan_connect+0xff/0xeb0 net/bluetooth/l2cap_core.c:6954
1 lock held by syz.4.694/8502:
#0: ffffffff8fe3b650 (hidp_session_sem){++++}-{4:4}, at: hidp_session_find+0x1c/0x110 net/bluetooth/hidp/core.c:1026
1 lock held by syz.2.722/8603:
#0: ffff888062418078 (&hdev->lock){+.+.}-{4:4}, at: l2cap_chan_connect+0xff/0xeb0 net/bluetooth/l2cap_core.c:6954
1 lock held by syz.0.744/8677:
#0: ffffffff8fe3b650 (hidp_session_sem){++++}-{4:4}, at: hidp_get_connlist+0x98/0x2b0 net/bluetooth/hidp/core.c:1423
2 locks held by syz-executor/8896:
1 lock held by syz.5.882/9261:
#0: ffffffff8fe3b650 (
hidp_session_sem
){++++}-{4:4}
, at: hidp_session_find+0x1c/0x110 net/bluetooth/hidp/core.c:1026
2 locks held by syz-executor/9574:
2 locks held by syz-executor/9590:
1 lock held by syz.6.1055/9889:
#0: ffff888062418078 (&hdev->lock){+.+.}-{4:4}, at: hci_inquiry+0x2b1/0x810 net/bluetooth/hci_core.c:342
7 locks held by syz-executor/10538:
#0: ffff8880351ea420 (sb_writers#8){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2964 [inline]
#0: ffff8880351ea420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x225/0xd30 fs/read_write.c:675
#1:
ffff888044117c88
(
&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1ea/0x500 fs/kernfs/file.c:325
#2: ffff888144b6cb48 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20e/0x500 fs/kernfs/file.c:326
#3: ffffffff8f55e828 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:216
#4: ffff88806074a0e8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1014 [inline]
#4: ffff88806074a0e8 (&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1095 [inline]
#4: ffff88806074a0e8 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0xce/0x7c0 drivers/base/dd.c:1293
#5: ffff88806074b250 (&devlink->lock_key#3){+.+.}-{4:4}, at: nsim_drv_remove+0x50/0x160 drivers/net/netdevsim/dev.c:1675
#6: ffffffff8e93cec0 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x4c/0x530 kernel/rcu/tree.c:4565
5 locks held by kworker/u8:11/10554:
2 locks held by syz-executor/10588:
#0:
ffffffff9019b830 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
ffffffff9019b830 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
ffffffff9019b830 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0x22/0x250 net/core/rtnetlink.c:555
#1: ffffffff8fcb2a88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#1: ffffffff8fcb2a88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:326 [inline]
#1: ffffffff8fcb2a88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0xce2/0x2210 net/core/rtnetlink.c:4011
2 locks held by syz.8.1254/10734:
#0: ffffffff8fcb2a88 (rtnl_mutex){+.+.}-{4:4}, at: tun_detach drivers/net/tun.c:698 [inline]
#0: ffffffff8fcb2a88 (rtnl_mutex){+.+.}-{4:4}, at: tun_chr_close+0x3b/0x1b0 drivers/net/tun.c:3517
#1: ffffffff8e93cff8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:297 [inline]
#1: ffffffff8e93cff8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x381/0x830 kernel/rcu/tree_exp.h:976
2 locks held by syz.1.1257/10757:
#0: ffffffff8fca65d0 (pernet_ops_rwsem){++++}-{4:4}, at: copy_net_ns+0x328/0x570 net/core/net_namespace.c:512
#1: ffffffff8fcb2a88 (rtnl_mutex){+.+.}-{4:4}
, at: wg_netns_pre_exit+0x1f/0x1e0 drivers/net/wireguard/device.c:415
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc3-syzkaller-00174-ga024e377efed #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:234 [inline]
watchdog+0xff6/0x1040 kernel/hung_task.c:397
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 974 Comm: kworker/0:2 Not tainted 6.13.0-rc3-syzkaller-00174-ga024e377efed #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events hidp_session_dev_work
RIP: 0010:look_up_lock_class+0x72/0x170
Code: 24 00 02 00 00 0f 85 c1 00 00 00 89 d8 49 01 c7 48 b8 eb 83 b5 80 46 86 c8 61 49 0f af c7 48 c1 e8 34 48 8b 1c c5 c0 8e b3 96 <e8> c9 01 00 00 48 85 db 0f 84 c1 00 00 00 4c 39 7b 40 74 05 48 8b
RSP: 0018:ffffc90000007830 EFLAGS: 00000802
RAX: 0000000000000c76 RBX: ffffffff93c9cc60 RCX: ffffffff9a3ab903
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc90000007be0
RBP: ffffc90000007940 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff2032f87 R12: ffffc90000007be0
R13: ffffc90000007be0 R14: ffffc90000007be0 R15: ffffffff9a789400
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4886aa5000 CR3: 000000000e736000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<NMI>
</NMI>
<IRQ>
register_lock_class+0x102/0x980 kernel/locking/lockdep.c:1290
__lock_acquire+0xf3/0x2100 kernel/locking/lockdep.c:5101
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
call_timer_fn+0xdd/0x650 kernel/time/timer.c:1790
expire_timers kernel/time/timer.c:1844 [inline]
__run_timers kernel/time/timer.c:2418 [inline]
__run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2430
run_timer_base kernel/time/timer.c:2439 [inline]
run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2449
handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561
__do_softirq kernel/softirq.c:595 [inline]
invoke_softirq kernel/softirq.c:435 [inline]
__irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662
irq_exit_rcu+0x9/0x30 kernel/softirq.c:678
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:console_trylock_spinning kernel/printk/printk.c:2061 [inline]
RIP: 0010:vprintk_emit+0x700/0xa10 kernel/printk/printk.c:2431
Code: 00 e8 d4 f3 20 00 4c 8d bc 24 a0 00 00 00 4d 85 e4 75 07 e8 c2 f3 20 00 eb 06 e8 bb f3 20 00 fb 49 bc 00 00 00 00 00 fc ff df <48> c7 c7 a0 34 81 8e 31 f6 ba 01 00 00 00 31 c9 41 b8 01 00 00 00
RSP: 0018:ffffc90003cc7120 EFLAGS: 00000293
RAX: ffffffff817e8035 RBX: 0000000000000000 RCX: ffff888025f88000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003cc7230 R08: ffffffff817e800e R09: 1ffffffff285493e
R10: dffffc0000000000 R11: fffffbfff285493f R12: dffffc0000000000
R13: 1ffff92000798e28 R14: ffffffff817e7e70 R15: ffffc90003cc71c0
dev_vprintk_emit+0x2ae/0x330 drivers/base/core.c:4935
dev_printk_emit+0xdd/0x120 drivers/base/core.c:4946
_dev_warn+0x122/0x170 drivers/base/core.c:5002
hid_parser_main+0x71f/0xaa0 drivers/hid/hid-core.c:660
hid_open_report+0xbd8/0x1580 drivers/hid/hid-core.c:1322
hid_parse include/linux/hid.h:1123 [inline]
hid_generic_probe+0x3d/0x90 drivers/hid/hid-generic.c:66
__hid_device_probe drivers/hid/hid-core.c:2718 [inline]
hid_device_probe+0x3bf/0x710 drivers/hid/hid-core.c:2755
really_probe+0x2b8/0xad0 drivers/base/dd.c:658
__driver_probe_device+0x1a2/0x390 drivers/base/dd.c:800
driver_probe_device+0x50/0x430 drivers/base/dd.c:830
__device_attach_driver+0x2d6/0x530 drivers/base/dd.c:958
bus_for_each_drv+0x24e/0x2e0 drivers/base/bus.c:459
__device_attach+0x333/0x520 drivers/base/dd.c:1030
bus_probe_device+0x189/0x260 drivers/base/bus.c:534
device_add+0x856/0xbf0 drivers/base/core.c:3665
hid_add_device+0x3b6/0x520 drivers/hid/hid-core.c:2901
hidp_session_dev_add net/bluetooth/hidp/core.c:856 [inline]
hidp_session_dev_work+0x46/0x160 net/bluetooth/hidp/core.c:895
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</TASK>