INFO: task dhcpcd:4646 blocked for more than 143 seconds.
Not tainted 6.2.0-rc5-syzkaller-00020-g7bf70dbb1882 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:dhcpcd state:D stack:16696 pid:4646 ppid:4645 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5293 [inline]
__schedule+0x995/0xe20 kernel/sched/core.c:6606
schedule+0xcb/0x190 kernel/sched/core.c:6682
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6741
__mutex_lock_common+0xe4f/0x26e0 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:799
rtnl_lock net/core/rtnetlink.c:75 [inline]
rtnetlink_rcv_msg+0x7cb/0xf10 net/core/rtnetlink.c:6138
netlink_rcv_skb+0x1f0/0x470 net/netlink/af_netlink.c:2564
netlink_unicast_kernel net/netlink/af_netlink.c:1330 [inline]
netlink_unicast+0x7e7/0x9c0 net/netlink/af_netlink.c:1356
netlink_sendmsg+0x9b3/0xcd0 net/netlink/af_netlink.c:1932
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg net/socket.c:734 [inline]
____sys_sendmsg+0x5be/0x9b0 net/socket.c:2476
___sys_sendmsg net/socket.c:2530 [inline]
__sys_sendmsg+0x23e/0x340 net/socket.c:2559
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f7a03fc3163
RSP: 002b:00007ffd8f8a8758 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f7a03ecb6c8 RCX: 00007f7a03fc3163
RDX: 0000000000000000 RSI: 00007ffd8f8bc908 RDI: 0000000000000018
RBP: 0000000000000018 R08: 0000000000000000 R09: 00007ffd8f8bc908
R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff
R13: 00007ffd8f8bc908 R14: 0000000000000030 R15: 0000000000000001
INFO: task syz-executor.5:5522 blocked for more than 144 seconds.
Not tainted 6.2.0-rc5-syzkaller-00020-g7bf70dbb1882 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:23160 pid:5522 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5293 [inline]
__schedule+0x995/0xe20 kernel/sched/core.c:6606
schedule+0xcb/0x190 kernel/sched/core.c:6682
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6741
__mutex_lock_common+0xe4f/0x26e0 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:799
rtnl_lock net/core/rtnetlink.c:75 [inline]
rtnetlink_rcv_msg+0x7cb/0xf10 net/core/rtnetlink.c:6138
netlink_rcv_skb+0x1f0/0x470 net/netlink/af_netlink.c:2564
netlink_unicast_kernel net/netlink/af_netlink.c:1330 [inline]
netlink_unicast+0x7e7/0x9c0 net/netlink/af_netlink.c:1356
netlink_sendmsg+0x9b3/0xcd0 net/netlink/af_netlink.c:1932
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg net/socket.c:734 [inline]
__sys_sendto+0x46e/0x5f0 net/socket.c:2117
__do_sys_sendto net/socket.c:2129 [inline]
__se_sys_sendto net/socket.c:2125 [inline]
__x64_sys_sendto+0xda/0xf0 net/socket.c:2125
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f628ae3e0fc
RSP: 002b:00007ffd2aae7310 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f628bad4620 RCX: 00007f628ae3e0fc
RDX: 0000000000000028 RSI: 00007f628bad4670 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffd2aae7364 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 00007f628bad4670 R14: 0000000000000003 R15: 0000000000000000
INFO: task syz-executor.2:5524 blocked for more than 145 seconds.
Not tainted 6.2.0-rc5-syzkaller-00020-g7bf70dbb1882 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:22672 pid:5524 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5293 [inline]
__schedule+0x995/0xe20 kernel/sched/core.c:6606
schedule+0xcb/0x190 kernel/sched/core.c:6682
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6741
__mutex_lock_common+0xe4f/0x26e0 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:799
rtnl_lock net/core/rtnetlink.c:75 [inline]
rtnetlink_rcv_msg+0x7cb/0xf10 net/core/rtnetlink.c:6138
netlink_rcv_skb+0x1f0/0x470 net/netlink/af_netlink.c:2564
netlink_unicast_kernel net/netlink/af_netlink.c:1330 [inline]
netlink_unicast+0x7e7/0x9c0 net/netlink/af_netlink.c:1356
netlink_sendmsg+0x9b3/0xcd0 net/netlink/af_netlink.c:1932
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg net/socket.c:734 [inline]
__sys_sendto+0x46e/0x5f0 net/socket.c:2117
__do_sys_sendto net/socket.c:2129 [inline]
__se_sys_sendto net/socket.c:2125 [inline]
__x64_sys_sendto+0xda/0xf0 net/socket.c:2125
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fcf11c3e0fc
RSP: 002b:00007ffe4f0283b0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007fcf128d4620 RCX: 00007fcf11c3e0fc
RDX: 0000000000000028 RSI: 00007fcf128d4670 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffe4f028404 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 00007fcf128d4670 R14: 0000000000000003 R15: 0000000000000000
INFO: task syz-executor.1:5526 blocked for more than 145 seconds.
Not tainted 6.2.0-rc5-syzkaller-00020-g7bf70dbb1882 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:21368 pid:5526 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5293 [inline]
__schedule+0x995/0xe20 kernel/sched/core.c:6606
schedule+0xcb/0x190 kernel/sched/core.c:6682
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6741
__mutex_lock_common+0xe4f/0x26e0 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:799
rtnl_lock net/core/rtnetlink.c:75 [inline]
rtnetlink_rcv_msg+0x7cb/0xf10 net/core/rtnetlink.c:6138
netlink_rcv_skb+0x1f0/0x470 net/netlink/af_netlink.c:2564
netlink_unicast_kernel net/netlink/af_netlink.c:1330 [inline]
netlink_unicast+0x7e7/0x9c0 net/netlink/af_netlink.c:1356
netlink_sendmsg+0x9b3/0xcd0 net/netlink/af_netlink.c:1932
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg net/socket.c:734 [inline]
__sys_sendto+0x46e/0x5f0 net/socket.c:2117
__do_sys_sendto net/socket.c:2129 [inline]
__se_sys_sendto net/socket.c:2125 [inline]
__x64_sys_sendto+0xda/0xf0 net/socket.c:2125
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fc05943e0fc
RSP: 002b:00007ffff8db7db0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007fc05a0d4620 RCX: 00007fc05943e0fc
RDX: 0000000000000028 RSI: 00007fc05a0d4670 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffff8db7e04 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 00007fc05a0d4670 R14: 0000000000000003 R15: 0000000000000000
Showing all locks held in the system:
3 locks held by kworker/0:0/7:
#0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc900000c7d00 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
#2: ffff888018396240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x2db/0x57c0 drivers/net/netdevsim/fib.c:1489
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8d327010 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8d327810 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/28:
#0: ffffffff8d326e40 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
1 lock held by dhcpcd/4646:
#0: ffffffff8e4b5d48 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:75 [inline]
#0: ffffffff8e4b5d48 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7cb/0xf10 net/core/rtnetlink.c:6138
2 locks held by getty/4754:
#0: ffff888028302098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900015a02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x53b/0x1650 drivers/tty/n_tty.c:2177
4 locks held by kworker/u4:0/5189:
#0: ffff8880129df938 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc900049cfd00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
#2: ffffffff8e4a93d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xf0/0xc60 net/core/net_namespace.c:568
#3: ffffffff8e4b5d48 (rtnl_mutex){+.+.}-{3:3}, at: wiphy_unregister+0x23d/0x860 net/wireless/core.c:1044
2 locks held by kworker/0:4/5214:
3 locks held by kworker/1:4/5217:
#0: ffff88814a161938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc90004b8fd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
#2: ffffffff8e4b5d48 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xb5/0x16a0 net/ipv6/addrconf.c:4083
3 locks held by kworker/0:6/5218:
#0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc90004b9fd00 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
#2: ffffffff8e4b5d48 (rtnl_mutex){+.+.}-{3:3}, at: switchdev_deferred_process_work+0xa/0x20 net/switchdev/switchdev.c:75
3 locks held by kworker/0:7/5219:
#0: ffff88814a161938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc90004bafd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
#2: ffffffff8e4b5d48 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xb5/0x16a0 net/ipv6/addrconf.c:4083
1 lock held by syz-executor.5/5271:
#0: ffffffff8e4b5d48 (rtnl_mutex){+.+.}-{3:3}, at: tun_detach drivers/net/tun.c:697 [inline]
#0: ffffffff8e4b5d48 (rtnl_mutex){+.+.}-{3:3}, at: tun_chr_close+0x3d/0x1a0 drivers/net/tun.c:3468
1 lock held by syz-executor.2/5274:
#0: ffffffff8e4b5d48 (rtnl_mutex){+.+.}-{3:3}, at: tun_detach drivers/net/tun.c:697 [inline]
#0: ffffffff8e4b5d48 (rtnl_mutex){+.+.}-{3:3}, at: tun_chr_close+0x3d/0x1a0 drivers/net/tun.c:3468
1 lock held by syz-executor.1/5276:
#0: ffffffff8e4b5d48 (rtnl_mutex){+.+.}-{3:3}, at: tun_detach drivers/net/tun.c:697 [inline]
#0: ffffffff8e4b5d48 (rtnl_mutex){+.+.}-{3:3}, at: tun_chr_close+0x3d/0x1a0 drivers/net/tun.c:3468
1 lock held by syz-executor.4/5283:
#0: ffffffff8e4b5d48 (rtnl_mutex){+.+.}-{3:3}, at: tun_detach drivers/net/tun.c:697 [inline]
#0: ffffffff8e4b5d48 (rtnl_mutex){+.+.}-{3:3}, at: tun_chr_close+0x3d/0x1a0 drivers/net/tun.c:3468
7 locks held by syz-executor.3/5294:
#0: ffff88802c9c8460 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x287/0xc50 fs/read_write.c:580
#1: ffff88801e451888 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1f3/0x500 fs/kernfs/file.c:325
#2: ffff88801d66c918 (kn->active#51){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x217/0x500 fs/kernfs/file.c:326
#3: ffffffff8de1f4a8 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xe2/0x450 drivers/net/netdevsim/bus.c:209
#4: ffff88806e4a30e8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:831 [inline]
#4: ffff88806e4a30e8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1073 [inline]
#4: ffff88806e4a30e8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xb5/0x8a0 drivers/base/dd.c:1276
#5: ffff88806e4a4338 (&devlink->lock_key#6){+.+.}-{3:3}, at: nsim_drv_remove+0x54/0x160 drivers/net/netdevsim/dev.c:1672
#6: ffffffff8e4b5d48 (rtnl_mutex){+.+.}-{3:3}, at: nsim_destroy+0x3a/0x140 drivers/net/netdevsim/netdev.c:373
3 locks held by kworker/0:12/5439:
#0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc9000512fd00 (free_ipc_work){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
#2: ffffffff8d32c4b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:324 [inline]
#2: ffffffff8d32c4b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x455/0x860 kernel/rcu/tree_exp.h:946
2 locks held by kworker/0:13/5440:
#0: ffff888012872538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc9000514fd00 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
2 locks held by syz-executor.5/5522:
#0: ffff88801dde1028 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close net/bluetooth/hci_core.c:552 [inline]
#0: ffff88801dde1028 (&hdev->req_lock){+.+.}-{3:3}, at: hci_unregister_dev+0x1b4/0x460 net/bluetooth/hci_core.c:2702
#1: ffff88801dde0078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x456/0xd70 net/bluetooth/hci_sync.c:4837
3 locks held by syz-executor.2/5524:
#0: ffff88807f6b9028 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close net/bluetooth/hci_core.c:552 [inline]
#0: ffff88807f6b9028 (&hdev->req_lock){+.+.}-{3:3}, at: hci_unregister_dev+0x1b4/0x460 net/bluetooth/hci_core.c:2702
#1: ffff88807f6b8078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x456/0xd70 net/bluetooth/hci_sync.c:4837
#2: ffffffff8e618de8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1790 [inline]
#2: ffffffff8e618de8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xb8/0x240 net/bluetooth/hci_conn.c:2437
4 locks held by syz-executor.1/5526:
#0: ffff888029ea1028 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close net/bluetooth/hci_core.c:552 [inline]
#0: ffff888029ea1028 (&hdev->req_lock){+.+.}-{3:3}, at: hci_unregister_dev+0x1b4/0x460 net/bluetooth/hci_core.c:2702
#1: ffff888029ea0078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x456/0xd70 net/bluetooth/hci_sync.c:4837
#2: ffffffff8e618de8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1790 [inline]
#2: ffffffff8e618de8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xb8/0x240 net/bluetooth/hci_conn.c:2437
#3: ffffffff8d32c4b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:324 [inline]
#3: ffffffff8d32c4b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x455/0x860 kernel/rcu/tree_exp.h:946
3 locks held by syz-executor.4/5530:
#0: ffff88807cb09028 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close net/bluetooth/hci_core.c:552 [inline]
#0: ffff88807cb09028 (&hdev->req_lock){+.+.}-{3:3}, at: hci_unregister_dev+0x1b4/0x460 net/bluetooth/hci_core.c:2702
#1: ffff88807cb08078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x456/0xd70 net/bluetooth/hci_sync.c:4837
#2: ffffffff8e618de8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1790 [inline]
#2: ffffffff8e618de8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xb8/0x240 net/bluetooth/hci_conn.c:2437
3 locks held by syz-executor.3/5534:
#0: ffff88801dde5028 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close net/bluetooth/hci_core.c:552 [inline]
#0: ffff88801dde5028 (&hdev->req_lock){+.+.}-{3:3}, at: hci_unregister_dev+0x1b4/0x460 net/bluetooth/hci_core.c:2702
#1: ffff88801dde4078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x456/0xd70 net/bluetooth/hci_sync.c:4837
#2: ffffffff8e618de8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1790 [inline]
#2: ffffffff8e618de8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xb8/0x240 net/bluetooth/hci_conn.c:2437
3 locks held by syz-executor.5/5544:
#0: ffff88807bc15028 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close net/bluetooth/hci_core.c:552 [inline]
#0: ffff88807bc15028 (&hdev->req_lock){+.+.}-{3:3}, at: hci_unregister_dev+0x1b4/0x460 net/bluetooth/hci_core.c:2702
#1: ffff88807bc14078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x456/0xd70 net/bluetooth/hci_sync.c:4837
#2: ffffffff8e618de8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1790 [inline]
#2: ffffffff8e618de8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xb8/0x240 net/bluetooth/hci_conn.c:2437
3 locks held by syz-executor.2/5547:
#0: ffff88802020d028 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close net/bluetooth/hci_core.c:552 [inline]
#0: ffff88802020d028 (&hdev->req_lock){+.+.}-{3:3}, at: hci_unregister_dev+0x1b4/0x460 net/bluetooth/hci_core.c:2702
#1: ffff88802020c078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x456/0xd70 net/bluetooth/hci_sync.c:4837
#2: ffffffff8e618de8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1790 [inline]
#2: ffffffff8e618de8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xb8/0x240 net/bluetooth/hci_conn.c:2437
3 locks held by syz-executor.1/5548:
#0: ffff888020209028 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close net/bluetooth/hci_core.c:552 [inline]
#0: ffff888020209028 (&hdev->req_lock){+.+.}-{3:3}, at: hci_unregister_dev+0x1b4/0x460 net/bluetooth/hci_core.c:2702
#1: ffff888020208078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x456/0xd70 net/bluetooth/hci_sync.c:4837
#2: ffffffff8e618de8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1790 [inline]
#2: ffffffff8e618de8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xb8/0x240 net/bluetooth/hci_conn.c:2437
3 locks held by syz-executor.4/5554:
#0: ffff88807f39d028 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close net/bluetooth/hci_core.c:552 [inline]
#0: ffff88807f39d028 (&hdev->req_lock){+.+.}-{3:3}, at: hci_unregister_dev+0x1b4/0x460 net/bluetooth/hci_core.c:2702
#1: ffff88807f39c078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x456/0xd70 net/bluetooth/hci_sync.c:4837
#2: ffffffff8e618de8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1790 [inline]
#2: ffffffff8e618de8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xb8/0x240 net/bluetooth/hci_conn.c:2437
3 locks held by syz-executor.3/5558:
#0: ffff88807bc11028 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close net/bluetooth/hci_core.c:552 [inline]
#0: ffff88807bc11028 (&hdev->req_lock){+.+.}-{3:3}, at: hci_unregister_dev+0x1b4/0x460 net/bluetooth/hci_core.c:2702
#1: ffff88807bc10078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x456/0xd70 net/bluetooth/hci_sync.c:4837
#2: ffffffff8e618de8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1790 [inline]
#2: ffffffff8e618de8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xb8/0x240 net/bluetooth/hci_conn.c:2437
1 lock held by syz-executor.5/5575:
#0: ffffffff8e4b5d48 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:75 [inline]
#0: ffffffff8e4b5d48 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7cb/0xf10 net/core/rtnetlink.c:6138
1 lock held by syz-executor.1/5579:
#0: ffffffff8e4b5d48 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:75 [inline]
#0: ffffffff8e4b5d48 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7cb/0xf10 net/core/rtnetlink.c:6138
1 lock held by syz-executor.2/5580:
#0: ffffffff8e4b5d48 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:75 [inline]
#0: ffffffff8e4b5d48 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7cb/0xf10 net/core/rtnetlink.c:6138
1 lock held by syz-executor.4/5585:
#0: ffffffff8e4b5d48 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:75 [inline]
#0: ffffffff8e4b5d48 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7cb/0xf10 net/core/rtnetlink.c:6138
1 lock held by syz-executor.3/5589:
#0: ffffffff8e4b5d48 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:75 [inline]
#0: ffffffff8e4b5d48 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7cb/0xf10 net/core/rtnetlink.c:6138
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.2.0-rc5-syzkaller-00020-g7bf70dbb1882 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1b1/0x290 lib/dump_stack.c:106
nmi_cpu_backtrace+0x46f/0x4f0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1ba/0x420 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xcd5/0xd20 kernel/hung_task.c:377
kthread+0x266/0x300 kernel/kthread.c:376
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: 5440 Comm: kworker/0:13 Not tainted 6.2.0-rc5-syzkaller-00020-g7bf70dbb1882 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Workqueue: events nsim_dev_trap_report_work
RIP: 0010:__unwind_start+0x32/0x760
Code: 54 53 48 83 ec 30 48 89 4c 24 10 49 89 d4 48 89 f3 49 89 fe 48 bd 00 00 00 00 00 fc ff df ba 60 00 00 00 31 f6 e8 5e 5d a4 00 <48> 89 ea 4d 8d 6e 28 4d 89 ef 49 c1 ef 03 41 80 3c 2f 00 74 12 4c
RSP: 0018:ffffc9000514f658 EFLAGS: 00000002
RAX: ffffc9000514f6c0 RBX: ffff888021808000 RCX: 0000000000000000
RDX: 0000000000000060 RSI: 0000000000000000 RDI: ffffc9000514f720
RBP: dffffc0000000000 R08: dffffc0000000000 R09: ffffc9000514f6c0
R10: fffff52000a29ee4 R11: 1ffff92000a29ed8 R12: 0000000000000000
R13: ffffffff81798580 R14: ffffc9000514f6c0 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000558f6fc75528 CR3: 000000002749a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
unwind_start arch/x86/include/asm/unwind.h:64 [inline]
arch_stack_walk+0x76/0xe0 arch/x86/kernel/stacktrace.c:24
stack_trace_save+0x104/0x1e0 kernel/stacktrace.c:122
kasan_save_stack+0x2b/0x50 mm/kasan/common.c:45
__kasan_record_aux_stack+0xb0/0xc0 mm/kasan/generic.c:488
insert_work+0x54/0x3e0 kernel/workqueue.c:1358
__queue_work+0xaaa/0xd60 kernel/workqueue.c:1517
queue_delayed_work_on+0x125/0x210 kernel/workqueue.c:1701
process_one_work+0x877/0xdb0 kernel/workqueue.c:2289
worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308