INFO: task kworker/u8:7:2519 blocked for more than 143 seconds.
Not tainted 6.11.0-rc4-syzkaller-00255-gd2bafcf224f3 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:7 state:D stack:20176 pid:2519 tgid:2519 ppid:2 flags:0x00004000
Workqueue: netns cleanup_net
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_timeout+0xb0/0x310 kernel/time/timer.c:2557
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_workqueue+0x7d6/0x1710 kernel/workqueue.c:3968
peer_remove_after_dead+0x9d/0x1a0 drivers/net/wireguard/peer.c:116
wg_peer_remove_all+0x453/0x4f0 drivers/net/wireguard/peer.c:183
wg_destruct+0x173/0x2e0 drivers/net/wireguard/device.c:254
netdev_run_todo+0xe1a/0x1000 net/core/dev.c:10762
default_device_exit_batch+0xa14/0xa90 net/core/dev.c:11898
ops_exit_list net/core/net_namespace.c:178 [inline]
cleanup_net+0x89d/0xcc0 net/core/net_namespace.c:640
process_one_work kernel/workqueue.c:3231 [inline]
process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312
worker_thread+0x86d/0xd10 kernel/workqueue.c:3389
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
INFO: task syz.3.744:8596 blocked for more than 144 seconds.
Not tainted 6.11.0-rc4-syzkaller-00255-gd2bafcf224f3 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.744 state:D stack:25616 pid:8596 tgid:8534 ppid:8156 flags:0x20004006
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
kobject_uevent_net_broadcast+0x280/0x580 lib/kobject_uevent.c:410
kobject_uevent_env+0x57d/0x8e0 lib/kobject_uevent.c:608
device_del+0x7db/0x9b0 drivers/base/core.c:3889
device_unregister+0x20/0xc0 drivers/base/core.c:3912
hci_conn_cleanup net/bluetooth/hci_conn.c:175 [inline]
hci_conn_del+0x8c4/0xc40 net/bluetooth/hci_conn.c:1162
hci_conn_hash_flush+0x18e/0x240 net/bluetooth/hci_conn.c:2593
hci_dev_close_sync+0x9ef/0x11a0 net/bluetooth/hci_sync.c:5157
hci_dev_do_close net/bluetooth/hci_core.c:483 [inline]
hci_unregister_dev+0x20b/0x510 net/bluetooth/hci_core.c:2692
vhci_release+0x83/0xd0 drivers/bluetooth/hci_vhci.c:664
__fput+0x24a/0x8a0 fs/file_table.c:422
task_work_run+0x24f/0x310 kernel/task_work.c:228
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0xa2f/0x27f0 kernel/exit.c:882
do_group_exit+0x207/0x2c0 kernel/exit.c:1031
get_signal+0x16a1/0x1740 kernel/signal.c:2917
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
__do_fast_syscall_32+0xc4/0x110 arch/x86/entry/common.c:389
do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411
entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf744d579
RSP: 002b:00000000f571456c EFLAGS: 00000206 ORIG_RAX: 0000000000000172
RAX: 000000000000003c RBX: 000000000000000d RCX: 0000000020000480
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
INFO: task syz.4.752:8615 blocked for more than 145 seconds.
Not tainted 6.11.0-rc4-syzkaller-00255-gd2bafcf224f3 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.752 state:D stack:24472 pid:8615 tgid:8555 ppid:5662 flags:0x20004006
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
kobject_uevent_net_broadcast+0x280/0x580 lib/kobject_uevent.c:410
kobject_uevent_env+0x57d/0x8e0 lib/kobject_uevent.c:608
device_del+0x7db/0x9b0 drivers/base/core.c:3889
rfkill_unregister+0xc2/0x230 net/rfkill/core.c:1147
hci_unregister_dev+0x366/0x510 net/bluetooth/hci_core.c:2709
vhci_release+0x83/0xd0 drivers/bluetooth/hci_vhci.c:664
__fput+0x24a/0x8a0 fs/file_table.c:422
task_work_run+0x24f/0x310 kernel/task_work.c:228
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0xa2f/0x27f0 kernel/exit.c:882
do_group_exit+0x207/0x2c0 kernel/exit.c:1031
get_signal+0x16a1/0x1740 kernel/signal.c:2917
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
__do_fast_syscall_32+0xc4/0x110 arch/x86/entry/common.c:389
do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411
entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf7fd6579
RSP: 002b:00000000f551156c EFLAGS: 00000206 ORIG_RAX: 0000000000000036
RAX: 0000000000000000 RBX: 0000000000000007 RCX: 0000000000008922
RDX: 0000000020000040 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
INFO: task syz.2.759:8593 blocked for more than 146 seconds.
Not tainted 6.11.0-rc4-syzkaller-00255-gd2bafcf224f3 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.759 state:D stack:23680 pid:8593 tgid:8592 ppid:6691 flags:0x20004002
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
kobject_uevent_net_broadcast+0x280/0x580 lib/kobject_uevent.c:410
kobject_uevent_env+0x57d/0x8e0 lib/kobject_uevent.c:608
device_del+0x7db/0x9b0 drivers/base/core.c:3889
device_unregister+0x20/0xc0 drivers/base/core.c:3912
hci_conn_cleanup net/bluetooth/hci_conn.c:175 [inline]
hci_conn_del+0x8c4/0xc40 net/bluetooth/hci_conn.c:1162
hci_conn_hash_flush+0x18e/0x240 net/bluetooth/hci_conn.c:2593
hci_dev_close_sync+0x9ef/0x11a0 net/bluetooth/hci_sync.c:5157
hci_dev_do_close net/bluetooth/hci_core.c:483 [inline]
hci_unregister_dev+0x20b/0x510 net/bluetooth/hci_core.c:2692
vhci_release+0x83/0xd0 drivers/bluetooth/hci_vhci.c:664
__fput+0x24a/0x8a0 fs/file_table.c:422
task_work_run+0x24f/0x310 kernel/task_work.c:228
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0xa2f/0x27f0 kernel/exit.c:882
do_group_exit+0x207/0x2c0 kernel/exit.c:1031
get_signal+0x16a1/0x1740 kernel/signal.c:2917
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
__do_fast_syscall_32+0xc4/0x110 arch/x86/entry/common.c:389
do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411
entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf741d579
RSP: 002b:00000000f572656c EFLAGS: 00000206 ORIG_RAX: 0000000000000126
RAX: 0000000000001000 RBX: 0000000000000000 RCX: 0000000000000003
RDX: 00000000200002c0 RSI: 0000000020000300 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
INFO: task syz.1.760:8610 blocked for more than 148 seconds.
Not tainted 6.11.0-rc4-syzkaller-00255-gd2bafcf224f3 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.760 state:D stack:26224 pid:8610 tgid:8606 ppid:5593 flags:0x20004002
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
kobject_uevent_net_broadcast+0x280/0x580 lib/kobject_uevent.c:410
kobject_uevent_env+0x57d/0x8e0 lib/kobject_uevent.c:608
device_del+0x7db/0x9b0 drivers/base/core.c:3889
device_unregister+0x20/0xc0 drivers/base/core.c:3912
hci_conn_cleanup net/bluetooth/hci_conn.c:175 [inline]
hci_conn_del+0x8c4/0xc40 net/bluetooth/hci_conn.c:1162
hci_conn_hash_flush+0x18e/0x240 net/bluetooth/hci_conn.c:2593
hci_dev_close_sync+0x9ef/0x11a0 net/bluetooth/hci_sync.c:5157
hci_dev_do_close net/bluetooth/hci_core.c:483 [inline]
hci_unregister_dev+0x20b/0x510 net/bluetooth/hci_core.c:2692
vhci_release+0x83/0xd0 drivers/bluetooth/hci_vhci.c:664
__fput+0x24a/0x8a0 fs/file_table.c:422
task_work_run+0x24f/0x310 kernel/task_work.c:228
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0xa2f/0x27f0 kernel/exit.c:882
do_group_exit+0x207/0x2c0 kernel/exit.c:1031
get_signal+0x16a1/0x1740 kernel/signal.c:2917
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
__do_fast_syscall_32+0xc4/0x110 arch/x86/entry/common.c:389
do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411
entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf7ff3579
RSP: 002b:00000000f575456c EFLAGS: 00000206 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffe7 RBX: 0000000000000008 RCX: 000000004004743a
RDX: 0000000020000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8e938320 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline]
#0: ffffffff8e938320 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
#0: ffffffff8e938320 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6626
2 locks held by kworker/1:1/46:
5 locks held by kworker/1:2/58:
3 locks held by kworker/u8:4/63:
4 locks held by kworker/u8:7/2519:
#0: ffff8880166e5948 ((wq_completion)netns){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3206 [inline]
, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
#1:
ffffc90008eb7d00 (net_cleanup_work){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3207 [inline]
, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
#2: ffffffff8fc77b50 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 net/core/net_namespace.c:594
#3: ffff88807c335428 (&wg->device_update_lock){+.+.}-{3:3}, at: wg_destruct+0x110/0x2e0 drivers/net/wireguard/device.c:249
2 locks held by getty/4982:
#0:
ffff88802b9b40a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1:
ffffc900031332f0
(
&ldata->atomic_read_lock
){+.+.}-{3:3}
, at: n_tty_read+0x6ac/0x1e00 drivers/tty/n_tty.c:2211
5 locks held by kworker/1:5/5294:
4 locks held by udevd/5355:
#0: ffff8880708711c8
(&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xb7/0xd60 fs/seq_file.c:182
#1:
ffff88802a5c1488 (&of->mutex#2){+.+.}-{3:3}, at: kernfs_seq_start+0x53/0x3b0 fs/kernfs/file.c:154
#2:
ffff888023e643c8 (kn->active#23){++++}-{0:0}, at: kernfs_seq_start+0x72/0x3b0 fs/kernfs/file.c:155
#3:
ffff8880244c1190
(&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:1014 [inline]
(&dev->mutex){....}-{3:3}, at: manufacturer_show+0x26/0xa0 drivers/usb/core/sysfs.c:142
3 locks held by syz.3.744/8596:
#0: ffff88807c4d4d80
(
&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close net/bluetooth/hci_core.c:481 [inline]
&hdev->req_lock){+.+.}-{3:3}, at: hci_unregister_dev+0x203/0x510 net/bluetooth/hci_core.c:2692
#1: ffff88807c4d4078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x572/0x11a0 net/bluetooth/hci_sync.c:5145
#2:
ffffffff8ffe9548 (uevent_sock_mutex){+.+.}-{3:3}, at: uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
ffffffff8ffe9548 (uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_net_broadcast+0x280/0x580 lib/kobject_uevent.c:410
3 locks held by syz-executor/8544:
#0:
ffff888067168d80 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close net/bluetooth/hci_core.c:481 [inline]
ffff888067168d80 (&hdev->req_lock){+.+.}-{3:3}, at: hci_unregister_dev+0x203/0x510 net/bluetooth/hci_core.c:2692
#1: ffff888067168078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x572/0x11a0 net/bluetooth/hci_sync.c:5145
#2: ffffffff8ffe9548 (uevent_sock_mutex){+.+.}-{3:3}, at: uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
#2: ffffffff8ffe9548 (uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_net_broadcast+0x280/0x580 lib/kobject_uevent.c:410
1 lock held by syz.4.752/8615:
#0:
ffffffff8ffe9548 (uevent_sock_mutex){+.+.}-{3:3}, at: uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
ffffffff8ffe9548 (uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_net_broadcast+0x280/0x580 lib/kobject_uevent.c:410
3 locks held by syz.2.759/8593:
#0: ffff88806da14d80 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close net/bluetooth/hci_core.c:481 [inline]
#0: ffff88806da14d80 (&hdev->req_lock){+.+.}-{3:3}, at: hci_unregister_dev+0x203/0x510 net/bluetooth/hci_core.c:2692
#1:
ffff88806da14078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x572/0x11a0 net/bluetooth/hci_sync.c:5145
#2: ffffffff8ffe9548
(uevent_sock_mutex){+.+.}-{3:3}, at: uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
(uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_net_broadcast+0x280/0x580 lib/kobject_uevent.c:410
3 locks held by syz.1.760/8610:
#0:
ffff88807c4d0d80
(&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close net/bluetooth/hci_core.c:481 [inline]
(&hdev->req_lock){+.+.}-{3:3}, at: hci_unregister_dev+0x203/0x510 net/bluetooth/hci_core.c:2692
#1: ffff88807c4d0078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x572/0x11a0 net/bluetooth/hci_sync.c:5145
#2: ffffffff8ffe9548 (uevent_sock_mutex){+.+.}-{3:3}, at: uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
#2: ffffffff8ffe9548 (uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_net_broadcast+0x280/0x580 lib/kobject_uevent.c:410
3 locks held by syz-executor/8618:
#0: ffff88806be00d80 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close net/bluetooth/hci_core.c:481 [inline]
#0: ffff88806be00d80 (&hdev->req_lock){+.+.}-{3:3}, at: hci_unregister_dev+0x203/0x510 net/bluetooth/hci_core.c:2692
#1: ffff88806be00078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x572/0x11a0 net/bluetooth/hci_sync.c:5145
#2: ffffffff8ffe9548 (uevent_sock_mutex){+.+.}-{3:3}, at: uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
#2: ffffffff8ffe9548 (uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_net_broadcast+0x280/0x580 lib/kobject_uevent.c:410
3 locks held by syz-executor/8621:
#0: ffff888060d68d80 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close net/bluetooth/hci_core.c:481 [inline]
#0: ffff888060d68d80 (&hdev->req_lock){+.+.}-{3:3}, at: hci_unregister_dev+0x203/0x510 net/bluetooth/hci_core.c:2692
#1: ffff888060d68078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x572/0x11a0 net/bluetooth/hci_sync.c:5145
#2: ffffffff8ffe9548 (uevent_sock_mutex){+.+.}-{3:3}, at: uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
#2: ffffffff8ffe9548 (uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_net_broadcast+0x280/0x580 lib/kobject_uevent.c:410
3 locks held by syz-executor/8624:
#0:
ffff888050704d80
(
&hdev->req_lock
){+.+.}-{3:3}
, at: hci_dev_do_close net/bluetooth/hci_core.c:481 [inline]
, at: hci_unregister_dev+0x203/0x510 net/bluetooth/hci_core.c:2692
#1:
ffff888050704078
(&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x572/0x11a0 net/bluetooth/hci_sync.c:5145
#2:
ffffffff8ffe9548
(uevent_sock_mutex
){+.+.}-{3:3}, at: uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
){+.+.}-{3:3}, at: kobject_uevent_net_broadcast+0x280/0x580 lib/kobject_uevent.c:410
3 locks held by syz-executor/8627:
#0:
ffff888054df0d80
(&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close net/bluetooth/hci_core.c:481 [inline]
(&hdev->req_lock){+.+.}-{3:3}, at: hci_unregister_dev+0x203/0x510 net/bluetooth/hci_core.c:2692
#1: ffff888054df0078 (&hdev->lock){+.+.}-{3:3}
, at: hci_dev_close_sync+0x572/0x11a0 net/bluetooth/hci_sync.c:5145
#2: ffffffff8ffe9548 (uevent_sock_mutex){+.+.}-{3:3}, at: uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
#2: ffffffff8ffe9548 (uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_net_broadcast+0x280/0x580 lib/kobject_uevent.c:410
2 locks held by syz-executor/8684:
#0: ffff88802cbbc118 (&data->open_mutex){+.+.}-{3:3}
, at: vhci_create_device+0x34/0x6a0 drivers/bluetooth/hci_vhci.c:469
#1:
ffffffff8ffe9548 (uevent_sock_mutex){+.+.}-{3:3}, at: uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
ffffffff8ffe9548 (uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_net_broadcast+0x280/0x580 lib/kobject_uevent.c:410
2 locks held by syz-executor/8713:
#0: ffff888055abc118 (&data->open_mutex){+.+.}-{3:3}
, at: vhci_create_device+0x34/0x6a0 drivers/bluetooth/hci_vhci.c:469
#1:
ffffffff8ffe9548 (uevent_sock_mutex){+.+.}-{3:3}, at: uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
ffffffff8ffe9548 (uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_net_broadcast+0x280/0x580 lib/kobject_uevent.c:410
2 locks held by syz-executor/8714:
#0: ffff888012034118 (&data->open_mutex){+.+.}-{3:3}
, at: vhci_create_device+0x34/0x6a0 drivers/bluetooth/hci_vhci.c:469
#1: ffffffff8ffe9548 (uevent_sock_mutex){+.+.}-{3:3}
, at: uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
, at: kobject_uevent_net_broadcast+0x280/0x580 lib/kobject_uevent.c:410
2 locks held by syz-executor/8715:
#0: ffff888061007918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device+0x34/0x6a0 drivers/bluetooth/hci_vhci.c:469
#1: ffffffff8ffe9548 (uevent_sock_mutex){+.+.}-{3:3}, at: uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
#1: ffffffff8ffe9548 (uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_net_broadcast+0x280/0x580 lib/kobject_uevent.c:410
2 locks held by syz-executor/8716:
#0:
ffff888023334918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device+0x34/0x6a0 drivers/bluetooth/hci_vhci.c:469
#1: ffffffff8ffe9548 (uevent_sock_mutex){+.+.}-{3:3}, at: uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
#1: ffffffff8ffe9548 (uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_net_broadcast+0x280/0x580 lib/kobject_uevent.c:410
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.11.0-rc4-syzkaller-00255-gd2bafcf224f3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
__dump_stack lib/dump_stack.c:93 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119
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:223 [inline]
watchdog+0xff4/0x1040 kernel/hung_task.c:379
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
Sending NMI from CPU 0 to CPUs 1:
cdc_wdm 4-1:1.0: Stall on int endpoint
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 58 Comm: kworker/1:2 Not tainted 6.11.0-rc4-syzkaller-00255-gd2bafcf224f3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Workqueue: wg-crypt-wg2 wg_packet_encrypt_worker
RIP: 0010:io_serial_in+0x76/0xb0 drivers/tty/serial/8250/8250_port.c:406
Code: 60 7e 54 fc 89 e9 41 d3 e6 48 83 c3 40 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 11 c0 bb fc 44 03 33 44 89 f2 ec <0f> b6 c0 5b 41 5e 41 5f 5d c3 cc cc cc cc 89 e9 80 e1 07 38 c1 7c
RSP: 0000:ffffc90000a17a18 EFLAGS: 00000002
RAX: 1ffffffff2a4b300 RBX: ffffffff95259d40 RCX: 0000000000000000
RDX: 00000000000003fd RSI: 0000000000000000 RDI: 0000000000000020
RBP: 0000000000000000 R08: ffffffff853f0fa6 R09: 1ffff110040d6046
R10: dffffc0000000000 R11: ffffffff853f0f60 R12: dffffc0000000000
R13: 00000000000026ec R14: 00000000000003fd R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000f756fb28 CR3: 000000001f8fa000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
serial_in drivers/tty/serial/8250/8250.h:137 [inline]
serial_lsr_in drivers/tty/serial/8250/8250.h:159 [inline]
wait_for_lsr drivers/tty/serial/8250/8250_port.c:2068 [inline]
serial8250_console_fifo_write drivers/tty/serial/8250/8250_port.c:3315 [inline]
serial8250_console_write+0x1099/0x1770 drivers/tty/serial/8250/8250_port.c:3393
console_emit_next_record kernel/printk/printk.c:2983 [inline]
console_flush_all+0x865/0xfd0 kernel/printk/printk.c:3049
console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3118
vprintk_emit+0x5dc/0x7c0 kernel/printk/printk.c:2348
dev_vprintk_emit+0x2ae/0x330 drivers/base/core.c:4912
dev_printk_emit+0xdd/0x120 drivers/base/core.c:4923
_dev_err+0x122/0x170 drivers/base/core.c:4978
wdm_int_callback+0x3d8/0xb30 drivers/usb/class/cdc-wdm.c:266
__usb_hcd_giveback_urb+0x42c/0x6e0 drivers/usb/core/hcd.c:1650
dummy_timer+0x830/0x45a0 drivers/usb/gadget/udc/dummy_hcd.c:1987
__run_hrtimer kernel/time/hrtimer.c:1689 [inline]
__hrtimer_run_queues+0x59b/0xd50 kernel/time/hrtimer.c:1753
hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1815
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
__sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1043
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5763
Code: 2b 00 74 08 4c 89 f7 e8 0a 00 8b 00 f6 44 24 61 02 0f 85 85 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0000:ffffc90000a18b00 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff9200014316c RCX: b92728bf25ad0700
RDX: dffffc0000000000 RSI: ffffffff8c0ae6e0 RDI: ffffffff8c606d80
RBP: ffffc90000a18c48 R08: ffffffff937348c7 R09: 1ffffffff26e6918
R10: dffffc0000000000 R11: fffffbfff26e6919 R12: 1ffff92000143168
R13: dffffc0000000000 R14: ffffc90000a18b60 R15: 0000000000000246
call_timer_fn+0xdd/0x650 kernel/time/timer.c:1789
expire_timers kernel/time/timer.c:1843 [inline]
__run_timers kernel/time/timer.c:2417 [inline]
__run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2428
run_timer_base kernel/time/timer.c:2437 [inline]
run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2447
handle_softirqs+0x2c4/0x970 kernel/softirq.c:554
do_softirq+0x11b/0x1e0 kernel/softirq.c:455
__local_bh_enable_ip+0x1bb/0x200 kernel/softirq.c:382
spin_unlock_bh include/linux/spinlock.h:396 [inline]
ptr_ring_consume_bh include/linux/ptr_ring.h:367 [inline]
wg_packet_encrypt_worker+0x1561/0x1610 drivers/net/wireguard/send.c:293
process_one_work kernel/workqueue.c:3231 [inline]
process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312
worker_thread+0x86d/0xd10 kernel/workqueue.c:3389
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
cdc_wdm 4-1:1.0: Stall on int endpoint
cdc_wdm 4-1:1.0: Stall on int endpoint
cdc_wdm 4-1:1.0: Stall on int endpoint
cdc_wdm 4-1:1.0: Stall on int endpoint
cdc_wdm 4-1:1.0: Stall on int endpoint
cdc_wdm 4-1:1.0: Stall on int endpoint
cdc_wdm 4-1:1.0: Stall on int endpoint
cdc_wdm 4-1:1.0: Stall on int endpoint
cdc_wdm 4-1:1.0: Stall on int endpoint
cdc_wdm 4-1:1.0: Stall on int endpoint
cdc_wdm 4-1:1.0: Stall on int endpoint
cdc_wdm 4-1:1.0: Stall on int endpoint
cdc_wdm 4-1:1.0: Stall on int endpoint
cdc_wdm 4-1:1.0: Stall on int endpoint
cdc_wdm 4-1:1.0: Stall on int endpoint