INFO: task syz.3.1107:9673 blocked for more than 143 seconds.
Not tainted 6.14.0-syzkaller-13311-g69ae94725f4f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.1107 state:D stack:27912 pid:9673 tgid:9671 ppid:5839 task_flags:0x400140 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x1b88/0x5240 kernel/sched/core.c:6767
__schedule_loop kernel/sched/core.c:6845 [inline]
schedule+0x163/0x360 kernel/sched/core.c:6860
schedule_timeout+0xb1/0x2b0 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+0x32f/0x600 kernel/sched/completion.c:148
__flush_work+0xa48/0xc60 kernel/workqueue.c:4244
__cancel_work_sync+0xbc/0x110 kernel/workqueue.c:4364
hidp_session_remove+0x64/0x260 net/bluetooth/hidp/core.c:1169
l2cap_unregister_user+0x19c/0x1c0 net/bluetooth/l2cap_core.c:1733
hidp_connection_del+0xb0/0x160 net/bluetooth/hidp/core.c:1409
do_hidp_sock_ioctl net/bluetooth/hidp/sock.c:97 [inline]
hidp_sock_ioctl+0x42b/0x8c0 net/bluetooth/hidp/sock.c:128
sock_do_ioctl+0x15a/0x490 net/socket.c:1190
sock_ioctl+0x644/0x900 net/socket.c:1311
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:906 [inline]
__se_sys_ioctl+0xf1/0x160 fs/ioctl.c:892
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f06e338d169
RSP: 002b:00007f06e11d5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f06e35a6080 RCX: 00007f06e338d169
RDX: 0000200000000000 RSI: 00000000400448c9 RDI: 0000000000000004
RBP: 00007f06e340e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f06e35a6080 R15: 00007ffce024a158
INFO: task khidpd_16c05505:9674 blocked for more than 144 seconds.
Not tainted 6.14.0-syzkaller-13311-g69ae94725f4f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:khidpd_16c05505 state:D stack:29464 pid:9674 tgid:9674 ppid:2 task_flags:0x208040 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x1b88/0x5240 kernel/sched/core.c:6767
__schedule_loop kernel/sched/core.c:6845 [inline]
schedule+0x163/0x360 kernel/sched/core.c:6860
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6917
__mutex_lock_common kernel/locking/mutex.c:678 [inline]
__mutex_lock+0x805/0x10c0 kernel/locking/mutex.c:746
l2cap_unregister_user+0x6a/0x1c0 net/bluetooth/l2cap_core.c:1727
hidp_session_thread+0x450/0x490 net/bluetooth/hidp/core.c:1304
kthread+0x7b7/0x940 kernel/kthread.c:464
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
INFO: task syz.1.1113:9707 blocked for more than 144 seconds.
Not tainted 6.14.0-syzkaller-13311-g69ae94725f4f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.1113 state:D stack:27912 pid:9707 tgid:9706 ppid:5838 task_flags:0x400140 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x1b88/0x5240 kernel/sched/core.c:6767
__schedule_loop kernel/sched/core.c:6845 [inline]
schedule+0x163/0x360 kernel/sched/core.c:6860
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6917
__mutex_lock_common kernel/locking/mutex.c:678 [inline]
__mutex_lock+0x805/0x10c0 kernel/locking/mutex.c:746
l2cap_chan_connect+0x102/0xea0 net/bluetooth/l2cap_core.c:6954
l2cap_sock_connect+0x622/0x950 net/bluetooth/l2cap_sock.c:256
__sys_connect_file net/socket.c:2038 [inline]
__sys_connect+0x28c/0x2d0 net/socket.c:2057
__do_sys_connect net/socket.c:2063 [inline]
__se_sys_connect net/socket.c:2060 [inline]
__x64_sys_connect+0x7a/0x90 net/socket.c:2060
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f79acb8d169
RSP: 002b:00007f79ada73038 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 00007f79acda5fa0 RCX: 00007f79acb8d169
RDX: 000000000000000e RSI: 0000200000000080 RDI: 0000000000000006
RBP: 00007f79acc0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f79acda5fa0 R15: 00007ffdd91c4f68
INFO: task syz.2.1195:9971 blocked for more than 144 seconds.
Not tainted 6.14.0-syzkaller-13311-g69ae94725f4f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.1195 state:D stack:24424 pid:9971 tgid:9970 ppid:5852 task_flags:0x400140 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x1b88/0x5240 kernel/sched/core.c:6767
__schedule_loop kernel/sched/core.c:6845 [inline]
schedule+0x163/0x360 kernel/sched/core.c:6860
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6917
__mutex_lock_common kernel/locking/mutex.c:678 [inline]
__mutex_lock+0x805/0x10c0 kernel/locking/mutex.c:746
rfcomm_reparent_device+0x49/0x440 net/bluetooth/rfcomm/tty.c:187
rfcomm_dev_add net/bluetooth/rfcomm/tty.c:339 [inline]
__rfcomm_create_dev net/bluetooth/rfcomm/tty.c:424 [inline]
rfcomm_create_dev net/bluetooth/rfcomm/tty.c:485 [inline]
rfcomm_dev_ioctl+0x1c45/0x2470 net/bluetooth/rfcomm/tty.c:584
sock_do_ioctl+0x15a/0x490 net/socket.c:1190
sock_ioctl+0x644/0x900 net/socket.c:1311
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:906 [inline]
__se_sys_ioctl+0xf1/0x160 fs/ioctl.c:892
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fab6a78d169
RSP: 002b:00007fab6b5e9038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fab6a9a5fa0 RCX: 00007fab6a78d169
RDX: 0000200000000100 RSI: 00000000400452c8 RDI: 0000000000000008
RBP: 00007fab6a80e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fab6a9a5fa0 R15: 00007ffc63999c78
INFO: task syz.4.1217:10037 blocked for more than 144 seconds.
Not tainted 6.14.0-syzkaller-13311-g69ae94725f4f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.1217 state:D stack:26144 pid:10037 tgid:10036 ppid:5847 task_flags:0x400140 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x1b88/0x5240 kernel/sched/core.c:6767
__schedule_loop kernel/sched/core.c:6845 [inline]
schedule+0x163/0x360 kernel/sched/core.c:6860
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6917
__mutex_lock_common kernel/locking/mutex.c:678 [inline]
__mutex_lock+0x805/0x10c0 kernel/locking/mutex.c:746
l2cap_chan_connect+0x102/0xea0 net/bluetooth/l2cap_core.c:6954
l2cap_sock_connect+0x622/0x950 net/bluetooth/l2cap_sock.c:256
__sys_connect_file net/socket.c:2038 [inline]
__sys_connect+0x28c/0x2d0 net/socket.c:2057
__do_sys_connect net/socket.c:2063 [inline]
__se_sys_connect net/socket.c:2060 [inline]
__x64_sys_connect+0x7a/0x90 net/socket.c:2060
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7d0458d169
RSP: 002b:00007f7d05398038 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 00007f7d047a5fa0 RCX: 00007f7d0458d169
RDX: 000000000000000e RSI: 0000200000000040 RDI: 0000000000000007
RBP: 00007f7d0460e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f7d047a5fa0 R15: 00007ffc31c47b58
INFO: task syz.0.1236:10099 blocked for more than 145 seconds.
Not tainted 6.14.0-syzkaller-13311-g69ae94725f4f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.1236 state:D stack:27912 pid:10099 tgid:10098 ppid:5856 task_flags:0x400140 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x1b88/0x5240 kernel/sched/core.c:6767
__schedule_loop kernel/sched/core.c:6845 [inline]
schedule+0x163/0x360 kernel/sched/core.c:6860
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6917
__mutex_lock_common kernel/locking/mutex.c:678 [inline]
__mutex_lock+0x805/0x10c0 kernel/locking/mutex.c:746
l2cap_chan_connect+0x102/0xea0 net/bluetooth/l2cap_core.c:6954
l2cap_sock_connect+0x622/0x950 net/bluetooth/l2cap_sock.c:256
__sys_connect_file net/socket.c:2038 [inline]
__sys_connect+0x28c/0x2d0 net/socket.c:2057
__do_sys_connect net/socket.c:2063 [inline]
__se_sys_connect net/socket.c:2060 [inline]
__x64_sys_connect+0x7a/0x90 net/socket.c:2060
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2258f8d169
RSP: 002b:00007f2256df6038 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 00007f22591a5fa0 RCX: 00007f2258f8d169
RDX: 000000000000000e RSI: 0000200000000080 RDI: 0000000000000005
RBP: 00007f225900e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f22591a5fa0 R15: 00007ffe130758a8
Showing all locks held in the system:
1 lock held by khungtaskd/31:
#0: ffffffff8ed3dfe0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#0: ffffffff8ed3dfe0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
#0: ffffffff8ed3dfe0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x30/0x180 kernel/locking/lockdep.c:6764
3 locks held by kworker/u8:2/36:
#0: ffff88814d72f948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3213 [inline]
#0: ffff88814d72f948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x990/0x18e0 kernel/workqueue.c:3319
#1: ffffc90000ad7c60 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3214 [inline]
#1: ffffc90000ad7c60 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9cb/0x18e0 kernel/workqueue.c:3319
#2: ffffffff900fc9c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
#2: ffffffff900fc9c8 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_dad_work+0x110/0x16a0 net/ipv6/addrconf.c:4195
2 locks held by kworker/u8:7/2945:
#0: ffff88801b089148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3213 [inline]
#0: ffff88801b089148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x990/0x18e0 kernel/workqueue.c:3319
#1: ffffc9000b057c60 ((work_completion)(&(&kfence_timer)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3214 [inline]
#1: ffffc9000b057c60 ((work_completion)(&(&kfence_timer)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9cb/0x18e0 kernel/workqueue.c:3319
4 locks held by kworker/u9:1/5152:
#0: ffff888028360948 ((wq_completion)hci4
){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3213 [inline]
){+.+.}-{0:0}, at: process_scheduled_works+0x990/0x18e0 kernel/workqueue.c:3319
#1: ffffc9000e737c60 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3214 [inline]
#1: ffffc9000e737c60 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_scheduled_works+0x9cb/0x18e0 kernel/workqueue.c:3319
#2: ffff888033494d80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_cmd_sync_work+0x1ec/0x400 net/bluetooth/hci_sync.c:331
#3: ffff888033494078 (&hdev->lock){+.+.}-{4:4}, at: hci_abort_conn_sync+0x1f1/0xeb0 net/bluetooth/hci_sync.c:5597
2 locks held by getty/5600:
#0: ffff88814cde50a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc9000334b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x5bb/0x1700 drivers/tty/n_tty.c:2222
8 locks held by kworker/1:3/5858:
2 locks held by syz.3.1107/9673:
#0: ffff888033494078 (&hdev->lock){+.+.}-{4:4}, at: l2cap_unregister_user+0x6a/0x1c0 net/bluetooth/l2cap_core.c:1727
#1:
ffffffff9028b730
(hidp_session_sem){++++}-{4:4}, at: hidp_session_remove+0x2d/0x260 net/bluetooth/hidp/core.c:1165
1 lock held by khidpd_16c05505/9674:
#0: ffff888033494078 (&hdev->lock){+.+.}-{4:4}, at: l2cap_unregister_user+0x6a/0x1c0 net/bluetooth/l2cap_core.c:1727
1 lock held by syz.1.1113/9707:
#0: ffff888033494078 (&hdev->lock){+.+.}-{4:4}, at: l2cap_chan_connect+0x102/0xea0 net/bluetooth/l2cap_core.c:6954
2 locks held by syz.2.1195/9971:
#0: ffffffff90288888 (rfcomm_ioctl_mutex){+.+.}-{4:4}, at: rfcomm_create_dev net/bluetooth/rfcomm/tty.c:484 [inline]
#0: ffffffff90288888 (rfcomm_ioctl_mutex){+.+.}-{4:4}, at: rfcomm_dev_ioctl+0x23c/0x2470 net/bluetooth/rfcomm/tty.c:584
#1: ffff888033494078 (&hdev->lock){+.+.}-{4:4}, at: rfcomm_reparent_device+0x49/0x440 net/bluetooth/rfcomm/tty.c:187
1 lock held by syz.4.1217/10037:
#0: ffff888033494078 (&hdev->lock){+.+.}-{4:4}, at: l2cap_chan_connect+0x102/0xea0 net/bluetooth/l2cap_core.c:6954
1 lock held by syz.0.1236/10099:
#0: ffff888033494078 (&hdev->lock){+.+.}-{4:4}, at: l2cap_chan_connect+0x102/0xea0 net/bluetooth/l2cap_core.c:6954
1 lock held by syz.8.1435/10900:
#0: ffffffff9028b730 (hidp_session_sem){++++}-{4:4}, at: hidp_session_find+0x1c/0x110 net/bluetooth/hidp/core.c:1026
1 lock held by syz.6.1595/11487:
#0: ffffffff90288888 (rfcomm_ioctl_mutex){+.+.}-{4:4}, at: rfcomm_release_dev net/bluetooth/rfcomm/tty.c:495 [inline]
#0: ffffffff90288888 (rfcomm_ioctl_mutex){+.+.}-{4:4}, at: rfcomm_dev_ioctl+0x170/0x2470 net/bluetooth/rfcomm/tty.c:587
1 lock held by syz.9.1641/11659:
#0: ffffffff9028b730 (hidp_session_sem){++++}-{4:4}, at: hidp_get_connlist+0x9f/0x2f0 net/bluetooth/hidp/core.c:1423
1 lock held by syz.7.1681/11814:
#0: ffffffff9028b730 (hidp_session_sem){++++}-{4:4}, at: hidp_session_find+0x1c/0x110 net/bluetooth/hidp/core.c:1026
1 lock held by syz.7.1681/11816:
#0: ffffffff9028b730 (hidp_session_sem){++++}-{4:4}, at: hidp_session_find+0x1c/0x110 net/bluetooth/hidp/core.c:1026
3 locks held by syz-executor/12109:
#0: ffff888052d08d80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_dev_do_close net/bluetooth/hci_core.c:481 [inline]
#0: ffff888052d08d80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_unregister_dev+0x203/0x510 net/bluetooth/hci_core.c:2678
#1: ffff888052d08078 (&hdev->lock){+.+.}-{4:4}, at: hci_dev_close_sync+0x60f/0x1260 net/bluetooth/hci_sync.c:5213
#2: ffffffff90262a48 (hci_cb_list_lock){+.+.}-{4:4}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:2066 [inline]
#2: ffffffff90262a48 (hci_cb_list_lock){+.+.}-{4:4}, at: hci_conn_hash_flush+0xa6/0x240 net/bluetooth/hci_conn.c:2701
1 lock held by syz.1.1840/12392:
#0: ffffffff9028b730 (hidp_session_sem){++++}-{4:4}, at: hidp_session_find+0x1c/0x110 net/bluetooth/hidp/core.c:1026
1 lock held by syz.1.1840/12393:
#0: ffffffff9028b730 (hidp_session_sem){++++}-{4:4}, at: hidp_session_find+0x1c/0x110 net/bluetooth/hidp/core.c:1026
1 lock held by syz.2.1851/12434:
#0: ffffffff9028b730 (hidp_session_sem){++++}-{4:4}, at: hidp_session_find+0x1c/0x110 net/bluetooth/hidp/core.c:1026
1 lock held by syz.2.1851/12435:
#0: ffffffff9028b730 (hidp_session_sem){++++}-{4:4}, at: hidp_session_find+0x1c/0x110 net/bluetooth/hidp/core.c:1026
2 locks held by syz-executor/12936:
#0: ffffffff900efe90 (pernet_ops_rwsem){++++}-{4:4}, at: copy_net_ns+0x328/0x570 net/core/net_namespace.c:514
#1: ffffffff900fc9c8 (rtnl_mutex
){+.+.}-{4:4}
, at: wg_netns_pre_exit+0x1f/0x1e0 drivers/net/wireguard/device.c:416
5 locks held by syz.3.2011/12944:
#0: ffff88807e0c0d80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_dev_do_close net/bluetooth/hci_core.c:481 [inline]
#0: ffff88807e0c0d80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_unregister_dev+0x203/0x510 net/bluetooth/hci_core.c:2678
#1: ffff88807e0c0078 (&hdev->lock){+.+.}-{4:4}, at: hci_dev_close_sync+0x60f/0x1260 net/bluetooth/hci_sync.c:5213
#2: ffffffff90262a48 (hci_cb_list_lock){+.+.}-{4:4}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:2066 [inline]
#2: ffffffff90262a48 (hci_cb_list_lock){+.+.}-{4:4}, at: hci_conn_hash_flush+0xa6/0x240 net/bluetooth/hci_conn.c:2701
#3: ffff88805acf0b38 (&conn->lock#2){+.+.}-{4:4}, at: l2cap_conn_del+0x71/0x690 net/bluetooth/l2cap_core.c:1761
#4: ffffffff8ed434f8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:336 [inline]
#4: ffffffff8ed434f8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x454/0x830 kernel/rcu/tree_exp.h:998
2 locks held by syz.5.2012/12943:
#0: ffffffff90600eb0 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#0: ffffffff90600eb0 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
#0: ffffffff90600eb0 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0x22/0x250 net/core/rtnetlink.c:570
#1: ffffffff900fc9c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline]
#1: ffffffff900fc9c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline]
#1: ffffffff900fc9c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0xd68/0x1fe0 net/core/rtnetlink.c:4067
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.14.0-syzkaller-13311-g69ae94725f4f #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
nmi_cpu_backtrace+0x4ab/0x4e0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:158 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:274 [inline]
watchdog+0x1058/0x10a0 kernel/hung_task.c:437
kthread+0x7b7/0x940 kernel/kthread.c:464
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 5858 Comm: kworker/1:3 Not tainted 6.14.0-syzkaller-13311-g69ae94725f4f #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: events hidp_session_dev_work
RIP: 0010:pie_calculate_probability+0x30/0x820 net/sched/sch_pie.c:313
Code: 57 41 56 41 55 41 54 53 48 83 ec 68 89 54 24 14 48 89 f5 48 89 fb 49 be 00 00 00 00 00 fc ff df e8 75 86 9e f7 48 89 5c 24 08 <4c> 8d 6b 1a 4d 89 ef 49 c1 ef 03 43 0f b6 04 37 84 c0 0f 85 d9 06
RSP: 0018:ffffc90000a08a60 EFLAGS: 00000246
RAX: ffffffff8a24d0cb RBX: ffff88807a6c7b00 RCX: ffff888060ba3c00
RDX: 0000000000000100 RSI: ffffc9001d99dd90 RDI: ffff88807a6c7b00
RBP: ffffc9001d99dd90 R08: ffffffff8a24d652 R09: fffff52000141150
R10: dffffc0000000000 R11: fffff52000141150 R12: dffffc0000000000
R13: ffffc9001d99ddd4 R14: dffffc0000000000 R15: ffffc9001d99dd90
FS: 0000000000000000(0000) GS:ffff888125096000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c36ee54 CR3: 000000000eb38000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
fq_pie_timer+0x270/0x590 net/sched/sch_fq_pie.c:400
call_timer_fn+0x189/0x650 kernel/time/timer.c:1789
expire_timers kernel/time/timer.c:1840 [inline]
__run_timers kernel/time/timer.c:2414 [inline]
__run_timer_base+0x66e/0x8e0 kernel/time/timer.c:2426
run_timer_base kernel/time/timer.c:2435 [inline]
run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2445
handle_softirqs+0x2d6/0x9b0 kernel/softirq.c:579
__do_softirq kernel/softirq.c:613 [inline]
invoke_softirq kernel/softirq.c:453 [inline]
__irq_exit_rcu+0xfb/0x220 kernel/softirq.c:680
irq_exit_rcu+0x9/0x30 kernel/softirq.c:696
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
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+0x731/0xa40 kernel/printk/printk.c:2449
Code: 00 e8 d3 3b 21 00 4c 8d bc 24 a0 00 00 00 4d 85 e4 75 07 e8 c1 3b 21 00 eb 06 e8 ba 3b 21 00 fb 49 bc 00 00 00 00 00 fc ff df <48> c7 c7 60 9b c1 8e 31 f6 ba 01 00 00 00 31 c9 41 b8 01 00 00 00
RSP: 0018:ffffc9000423f060 EFLAGS: 00000293
RAX: ffffffff81a21b86 RBX: 0000000000000000 RCX: ffff888060ba3c00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000423f170 R08: ffffffff81a21b5f R09: 1ffffffff20bface
R10: dffffc0000000000 R11: fffffbfff20bfacf R12: dffffc0000000000
R13: 1ffff92000847e10 R14: ffffffff81a219b2 R15: ffffc9000423f100
dev_vprintk_emit+0x358/0x420 drivers/base/core.c:4891
dev_printk_emit+0xdf/0x130 drivers/base/core.c:4902
_dev_warn+0x12d/0x180 drivers/base/core.c:4958
hid_parser_main+0x896/0xc40 drivers/hid/hid-core.c:-1
hid_open_report+0xbda/0x1590 drivers/hid/hid-core.c:1328
hid_parse include/linux/hid.h:1126 [inline]
hid_generic_probe+0x3d/0x90 drivers/hid/hid-generic.c:66
__hid_device_probe drivers/hid/hid-core.c:2717 [inline]
hid_device_probe+0x3bf/0x710 drivers/hid/hid-core.c:2754
call_driver_probe drivers/base/dd.c:-1 [inline]
really_probe+0x2b9/0xad0 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+0x258/0x2e0 drivers/base/bus.c:462
__device_attach+0x341/0x530 drivers/base/dd.c:1030
bus_probe_device+0x189/0x260 drivers/base/bus.c:537
device_add+0x856/0xbf0 drivers/base/core.c:3666
hid_add_device+0x3b6/0x520 drivers/hid/hid-core.c:2900
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:3238 [inline]
process_scheduled_works+0xac3/0x18e0 kernel/workqueue.c:3319
worker_thread+0x870/0xd50 kernel/workqueue.c:3400
kthread+0x7b7/0x940 kernel/kthread.c:464
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245