INFO: task udevd:4525 blocked for more than 143 seconds.
Not tainted 6.9.0-rc5-syzkaller-00159-gc942a0cd3603 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:25152 pid:4525 tgid:4525 ppid:1 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0xf15/0x5d00 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6838
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6895
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
kobject_uevent_net_broadcast lib/kobject_uevent.c:410 [inline]
kobject_uevent_env+0xaf4/0x1810 lib/kobject_uevent.c:593
kobject_synth_uevent+0x7de/0x8a0 lib/kobject_uevent.c:207
uevent_store+0x24/0x80 drivers/base/core.c:2759
dev_attr_store+0x55/0x80 drivers/base/core.c:2461
sysfs_kf_write+0x117/0x170 fs/sysfs/file.c:136
kernfs_fop_write_iter+0x343/0x500 fs/kernfs/file.c:334
call_write_iter include/linux/fs.h:2110 [inline]
new_sync_write fs/read_write.c:497 [inline]
vfs_write+0x6db/0x1100 fs/read_write.c:590
ksys_write+0x12f/0x260 fs/read_write.c:643
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0f4d516bf2
RSP: 002b:00007ffd32558b98 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000055c5c777e050 RCX: 00007f0f4d516bf2
RDX: 0000000000000007 RSI: 000055c5c77479f0 RDI: 000000000000000c
RBP: 0000000000000007 R08: 000055c5c77479f0 R09: 0000000000000010
R10: 000000000000010f R11: 0000000000000246 R12: 0000000000000007
R13: 000055c5c77479f0 R14: 00007ffd32558f78 R15: 0000000000000000
INFO: task kworker/u8:9:6927 blocked for more than 144 seconds.
Not tainted 6.9.0-rc5-syzkaller-00159-gc942a0cd3603 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:9 state:D stack:23568 pid:6927 tgid:6927 ppid:2 flags:0x00004000
Workqueue: netns cleanup_net
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0xf15/0x5d00 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6838
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6895
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
nsim_destroy+0x35/0x2f0 drivers/net/netdevsim/netdev.c:451
__nsim_dev_port_del+0x189/0x240 drivers/net/netdevsim/dev.c:1425
nsim_dev_port_del_all drivers/net/netdevsim/dev.c:1437 [inline]
nsim_dev_reload_destroy+0x108/0x4d0 drivers/net/netdevsim/dev.c:1658
nsim_dev_reload_down+0x6e/0xd0 drivers/net/netdevsim/dev.c:965
devlink_reload+0x19a/0x7c0 net/devlink/dev.c:461
devlink_pernet_pre_exit+0x1a1/0x2b0 net/devlink/core.c:509
ops_pre_exit_list net/core/net_namespace.c:160 [inline]
cleanup_net+0x488/0xbf0 net/core/net_namespace.c:617
process_one_work+0x9a9/0x1ac0 kernel/workqueue.c:3254
process_scheduled_works kernel/workqueue.c:3335 [inline]
worker_thread+0x6c8/0xf70 kernel/workqueue.c:3416
kthread+0x2c1/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
INFO: task syz-executor.3:11096 blocked for more than 145 seconds.
Not tainted 6.9.0-rc5-syzkaller-00159-gc942a0cd3603 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:23200 pid:11096 tgid:11096 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0xf15/0x5d00 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6838
exp_funnel_lock kernel/rcu/tree_exp.h:314 [inline]
synchronize_rcu_expedited+0x730/0x7a0 kernel/rcu/tree_exp.h:939
namespace_unlock+0x1b5/0x490 fs/namespace.c:1573
drop_collected_mounts fs/namespace.c:2078 [inline]
put_mnt_ns fs/namespace.c:5201 [inline]
put_mnt_ns+0x10a/0x150 fs/namespace.c:5197
free_nsproxy+0x47/0x4d0 kernel/nsproxy.c:193
put_nsproxy include/linux/nsproxy.h:107 [inline]
switch_task_namespaces+0xe0/0x110 kernel/nsproxy.c:251
do_exit+0xa78/0x2c10 kernel/exit.c:877
do_group_exit+0xd3/0x2a0 kernel/exit.c:1027
get_signal+0x2616/0x2710 kernel/signal.c:2911
arch_do_signal_or_restart+0x90/0x7e0 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+0x14a/0x2a0 kernel/entry/common.c:218
do_syscall_64+0xdc/0x260 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f70b347d657
RSP: 002b:00007ffe33c18648 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f70b347d657
RDX: 00007ffe33c18670 RSI: 00007ffe33c18700 RDI: 00007ffe33c18700
RBP: 00007ffe33c18700 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000206 R12: 00007ffe33c197c0
R13: 00007f70b34c93b9 R14: 00007f70b34dd6e0 R15: 0000000000000000
INFO: task syz-executor.1:11299 blocked for more than 146 seconds.
Not tainted 6.9.0-rc5-syzkaller-00159-gc942a0cd3603 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:27248 pid:11299 tgid:11295 ppid:10919 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0xf15/0x5d00 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6838
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6895
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
exp_funnel_lock kernel/rcu/tree_exp.h:323 [inline]
synchronize_rcu_expedited+0x403/0x7a0 kernel/rcu/tree_exp.h:939
synchronize_rcu+0x2f9/0x3b0 kernel/rcu/tree.c:3611
vhost_vsock_dev_release+0x179/0x400 drivers/vhost/vsock.c:733
__fput+0x270/0xb80 fs/file_table.c:422
task_work_run+0x14e/0x250 kernel/task_work.c:180
exit_task_work include/linux/task_work.h:38 [inline]
do_exit+0xa7d/0x2c10 kernel/exit.c:878
do_group_exit+0xd3/0x2a0 kernel/exit.c:1027
get_signal+0x2616/0x2710 kernel/signal.c:2911
arch_do_signal_or_restart+0x90/0x7e0 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+0x14a/0x2a0 kernel/entry/common.c:218
do_syscall_64+0xdc/0x260 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f947fa7dea9
RSP: 002b:00007f9480862178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f947fbac058 RCX: 00007f947fa7dea9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f947fbac058
RBP: 00007f947fbac050 R08: 00007f94808626c0 R09: 00007f94808626c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f947fbac05c
R13: 000000000000006e R14: 00007fff259265c0 R15: 00007fff259266a8
INFO: task syz-executor.0:11303 blocked for more than 147 seconds.
Not tainted 6.9.0-rc5-syzkaller-00159-gc942a0cd3603 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:27024 pid:11303 tgid:11303 ppid:11113 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0xf15/0x5d00 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6838
netlink_table_grab net/netlink/af_netlink.c:447 [inline]
netlink_table_grab+0x183/0x290 net/netlink/af_netlink.c:431
netlink_remove net/netlink/af_netlink.c:622 [inline]
netlink_release+0x70e/0x1ff0 net/netlink/af_netlink.c:755
__sock_release+0xb0/0x270 net/socket.c:659
sock_close+0x1c/0x30 net/socket.c:1421
__fput+0x270/0xb80 fs/file_table.c:422
__fput_sync+0x47/0x50 fs/file_table.c:507
__do_sys_close fs/open.c:1556 [inline]
__se_sys_close fs/open.c:1541 [inline]
__x64_sys_close+0x86/0x100 fs/open.c:1541
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2e1027cd9a
RSP: 002b:00007fff4e8db2b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007f2e1027cd9a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000007
RBP: 00007f2e103ad980 R08: 0000001b32420000 R09: 0000000000000583
R10: 000000008add8411 R11: 0000000000000293 R12: 00000000000b2e5f
R13: 00000000000b2bbd R14: 00007fff4e8db470 R15: 00007f2e10234cb0
INFO: task syz-executor.0:11305 blocked for more than 148 seconds.
Not tainted 6.9.0-rc5-syzkaller-00159-gc942a0cd3603 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:25808 pid:11305 tgid:11303 ppid:11113 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0xf15/0x5d00 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6838
exp_funnel_lock kernel/rcu/tree_exp.h:314 [inline]
synchronize_rcu_expedited+0x730/0x7a0 kernel/rcu/tree_exp.h:939
synchronize_rcu+0x2f9/0x3b0 kernel/rcu/tree.c:3611
__nf_tables_abort net/netfilter/nf_tables_api.c:10713 [inline]
nf_tables_abort+0x153a/0x3bf0 net/netfilter/nf_tables_api.c:10732
nfnetlink_rcv_batch+0xbba/0x2530 net/netfilter/nfnetlink.c:585
nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:639 [inline]
nfnetlink_rcv+0x3c3/0x430 net/netfilter/nfnetlink.c:657
netlink_unicast_kernel net/netlink/af_netlink.c:1335 [inline]
netlink_unicast+0x542/0x820 net/netlink/af_netlink.c:1361
netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1905
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg net/socket.c:745 [inline]
____sys_sendmsg+0xab5/0xc90 net/socket.c:2584
___sys_sendmsg+0x135/0x1e0 net/socket.c:2638
__sys_sendmsg+0x117/0x1f0 net/socket.c:2667
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2e1027dea9
RSP: 002b:00007f2e0fdff0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f2e103abf80 RCX: 00007f2e1027dea9
RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005
RBP: 00007f2e102ca4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f2e103abf80 R15: 00007fff4e8db1e8
Showing all locks held in the system:
3 locks held by kworker/0:0/7:
#0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x1296/0x1ac0 kernel/workqueue.c:3229
#1: ffffc900000c7d80 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x906/0x1ac0 kernel/workqueue.c:3230
#2: ffffffff8f301988 (rtnl_mutex){+.+.}-{3:3}, at: switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:104
2 locks held by kworker/u8:0/10:
3 locks held by kworker/1:0/24:
1 lock held by khungtaskd/30:
#0: ffffffff8d7b0e20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
#0: ffffffff8d7b0e20 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
#0: ffffffff8d7b0e20 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6614
2 locks held by kworker/u8:4/60:
#0: ffff88801975a148 ((wq_completion)iou_exit){+.+.}-{0:0}, at: process_one_work+0x1296/0x1ac0 kernel/workqueue.c:3229
#1: ffffc900015b7d80 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work+0x906/0x1ac0 kernel/workqueue.c:3230
3 locks held by kworker/u8:5/80:
#0: ffff88802a57e948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x1296/0x1ac0 kernel/workqueue.c:3229
#1: ffffc900020dfd80 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x906/0x1ac0 kernel/workqueue.c:3230
#2: ffffffff8f301988 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x12/0x30 net/ipv6/addrconf.c:4732
5 locks held by kworker/1:2/928:
4 locks held by udevd/4525:
#0: ffff88807f4d8420 (sb_writers#9){.+.+}-{0:0}, at: ksys_write+0x12f/0x260 fs/read_write.c:643
#1: ffff8880299b3c88 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x281/0x500 fs/kernfs/file.c:325
#2: ffff888020760d28 (kn->active#5){++++}-{0:0}, at: kernfs_fop_write_iter+0x2a4/0x500 fs/kernfs/file.c:326
#3: ffffffff8f840e88 (uevent_sock_mutex){+.+.}-{3:3}, at: uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
#3: ffffffff8f840e88 (uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_net_broadcast lib/kobject_uevent.c:410 [inline]
#3: ffffffff8f840e88 (uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_env+0xaf4/0x1810 lib/kobject_uevent.c:593
2 locks held by getty/4829:
#0: ffff88802ad5f0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc8/0x1490 drivers/tty/n_tty.c:2201
5 locks held by kworker/u9:2/5097:
#0: ffff88805fedb148 ((wq_completion)hci0){+.+.}-{0:0}, at: process_one_work+0x1296/0x1ac0 kernel/workqueue.c:3229
#1: ffffc900032cfd80 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work+0x906/0x1ac0 kernel/workqueue.c:3230
#2: ffff8880655b9060 (&hdev->req_lock){+.+.}-{3:3}, at: hci_cmd_sync_work+0x170/0x410 net/bluetooth/hci_sync.c:309
#3: ffff8880655b8078 (&hdev->lock){+.+.}-{3:3}, at: hci_abort_conn_sync+0x150/0xb60 net/bluetooth/hci_sync.c:5548
#4: ffffffff8f55ff88 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_connect_cfm include/net/bluetooth/hci_core.h:2010 [inline]
#4: ffffffff8f55ff88 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_failed+0x158/0x370 net/bluetooth/hci_conn.c:1230
5 locks held by kworker/u9:3/5099:
#0: ffff888020367148 ((wq_completion)hci6){+.+.}-{0:0}, at: process_one_work+0x1296/0x1ac0 kernel/workqueue.c:3229
#1: ffffc9000330fd80 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work+0x906/0x1ac0 kernel/workqueue.c:3230
#2: ffff888065c69060 (&hdev->req_lock){+.+.}-{3:3}, at: hci_cmd_sync_work+0x170/0x410 net/bluetooth/hci_sync.c:309
#3: ffff888065c68078 (&hdev->lock){+.+.}-{3:3}, at: hci_abort_conn_sync+0x150/0xb60 net/bluetooth/hci_sync.c:5548
#4: ffffffff8f55ff88 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_connect_cfm include/net/bluetooth/hci_core.h:2010 [inline]
#4: ffffffff8f55ff88 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_failed+0x158/0x370 net/bluetooth/hci_conn.c:1230
5 locks held by kworker/u9:5/5103:
#0: ffff888031887148 ((wq_completion)hci3){+.+.}-{0:0}, at: process_one_work+0x1296/0x1ac0 kernel/workqueue.c:3229
#1: ffffc90003b9fd80 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work+0x906/0x1ac0 kernel/workqueue.c:3230
#2: ffff888042d29060 (&hdev->req_lock){+.+.}-{3:3}, at: hci_cmd_sync_work+0x170/0x410 net/bluetooth/hci_sync.c:309
#3: ffff888042d28078 (&hdev->lock){+.+.}-{3:3}, at: hci_abort_conn_sync+0x150/0xb60 net/bluetooth/hci_sync.c:5548
#4: ffffffff8f55ff88 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_connect_cfm include/net/bluetooth/hci_core.h:2010 [inline]
#4: ffffffff8f55ff88 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_failed+0x158/0x370 net/bluetooth/hci_conn.c:1230
4 locks held by kworker/1:4/5143:
2 locks held by kworker/0:4/5144:
#0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x1296/0x1ac0 kernel/workqueue.c:3229
#1: ffffc900043dfd80 (free_ipc_work){+.+.}-{0:0}, at: process_one_work+0x906/0x1ac0 kernel/workqueue.c:3230
6 locks held by kworker/u8:9/6927:
#0: ffff888015ecb148 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x1296/0x1ac0 kernel/workqueue.c:3229
#1: ffffc9000442fd80 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x906/0x1ac0 kernel/workqueue.c:3230
#2: ffffffff8f2ecb90 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbb/0xbf0 net/core/net_namespace.c:591
#3: ffff88807afff0e8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:990 [inline]
#3: ffff88807afff0e8 (&dev->mutex){....}-{3:3}, at: devl_dev_lock net/devlink/devl_internal.h:108 [inline]
#3: ffff88807afff0e8 (&dev->mutex){....}-{3:3}, at: devlink_pernet_pre_exit+0x12d/0x2b0 net/devlink/core.c:506
#4: ffff8880243f2250 (&devlink->lock_key#38){+.+.}-{3:3}, at: devl_lock net/devlink/core.c:276 [inline]
#4: ffff8880243f2250 (&devlink->lock_key#38){+.+.}-{3:3}, at: devl_dev_lock net/devlink/devl_internal.h:109 [inline]
#4: ffff8880243f2250 (&devlink->lock_key#38){+.+.}-{3:3}, at: devlink_pernet_pre_exit+0x137/0x2b0 net/devlink/core.c:506
#5: ffffffff8f301988 (rtnl_mutex){+.+.}-{3:3}, at: nsim_destroy+0x35/0x2f0 drivers/net/netdevsim/netdev.c:451
3 locks held by syz-executor.1/9353:
3 locks held by syz-executor.1/10919:
#0: ffff88807b4ed060 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x26/0x90 net/bluetooth/hci_core.c:552
#1: ffff88807b4ec078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x339/0x11e0 net/bluetooth/hci_sync.c:5146
#2: ffffffff8f55ff88 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:2025 [inline]
#2: ffffffff8f55ff88 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xc4/0x260 net/bluetooth/hci_conn.c:2568
3 locks held by vhost-11296/11297:
1 lock held by syz-executor.1/11299:
#0: ffffffff8d7bc538 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:323 [inline]
#0: ffffffff8d7bc538 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x403/0x7a0 kernel/rcu/tree_exp.h:939
1 lock held by syz-executor.0/11303:
#0: ffff888032071a10 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:795 [inline]
#0: ffff888032071a10 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: __sock_release+0x86/0x270 net/socket.c:658
1 lock held by syz-executor.0/11305:
#0: ffff8880377cdab8 (&nft_net->commit_mutex){+.+.}-{3:3}, at: nf_tables_valid_genid+0x33/0x130 net/netfilter/nf_tables_api.c:10755
1 lock held by syz-executor.4/11314:
#0: ffff888045949410 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:795 [inline]
#0: ffff888045949410 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: __sock_release+0x86/0x270 net/socket.c:658
2 locks held by syz-executor.3/11315:
#0: ffff888054866918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device drivers/bluetooth/hci_vhci.c:479 [inline]
#0: ffff888054866918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_get_user drivers/bluetooth/hci_vhci.c:537 [inline]
#0: ffff888054866918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_write+0x2bb/0x470 drivers/bluetooth/hci_vhci.c:617
#1: ffffffff8f840e88 (uevent_sock_mutex){+.+.}-{3:3}, at: uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
#1: ffffffff8f840e88 (uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_net_broadcast lib/kobject_uevent.c:410 [inline]
#1: ffffffff8f840e88 (uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_env+0xaf4/0x1810 lib/kobject_uevent.c:593
2 locks held by syz-executor.2/11316:
#0: ffff88805f086918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device drivers/bluetooth/hci_vhci.c:479 [inline]
#0: ffff88805f086918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_get_user drivers/bluetooth/hci_vhci.c:537 [inline]
#0: ffff88805f086918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_write+0x2bb/0x470 drivers/bluetooth/hci_vhci.c:617
#1: ffffffff8f840e88 (uevent_sock_mutex){+.+.}-{3:3}, at: uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
#1: ffffffff8f840e88 (uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_net_broadcast lib/kobject_uevent.c:410 [inline]
#1: ffffffff8f840e88 (uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_env+0xaf4/0x1810 lib/kobject_uevent.c:593
2 locks held by syz-executor.1/11318:
#0: ffff88803d6fd118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device drivers/bluetooth/hci_vhci.c:479 [inline]
#0: ffff88803d6fd118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_get_user drivers/bluetooth/hci_vhci.c:537 [inline]
#0: ffff88803d6fd118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_write+0x2bb/0x470 drivers/bluetooth/hci_vhci.c:617
#1: ffffffff8f840e88 (uevent_sock_mutex){+.+.}-{3:3}, at: uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
#1: ffffffff8f840e88 (uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_net_broadcast lib/kobject_uevent.c:410 [inline]
#1: ffffffff8f840e88 (uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_env+0xaf4/0x1810 lib/kobject_uevent.c:593
2 locks held by syz-executor.0/11320:
#0: ffff88803f229918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device drivers/bluetooth/hci_vhci.c:479 [inline]
#0: ffff88803f229918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_get_user drivers/bluetooth/hci_vhci.c:537 [inline]
#0: ffff88803f229918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_write+0x2bb/0x470 drivers/bluetooth/hci_vhci.c:617
#1: ffffffff8f840e88 (uevent_sock_mutex){+.+.}-{3:3}, at: uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
#1: ffffffff8f840e88 (uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_net_broadcast lib/kobject_uevent.c:410 [inline]
#1: ffffffff8f840e88 (uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_env+0xaf4/0x1810 lib/kobject_uevent.c:593
2 locks held by syz-executor.3/11323:
#0: ffff88805dd48118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device drivers/bluetooth/hci_vhci.c:479 [inline]
#0: ffff88805dd48118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_get_user drivers/bluetooth/hci_vhci.c:537 [inline]
#0: ffff88805dd48118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_write+0x2bb/0x470 drivers/bluetooth/hci_vhci.c:617
#1: ffffffff8f840e88 (uevent_sock_mutex){+.+.}-{3:3}, at: uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
#1: ffffffff8f840e88 (uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_net_broadcast lib/kobject_uevent.c:410 [inline]
#1: ffffffff8f840e88 (uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_env+0xaf4/0x1810 lib/kobject_uevent.c:593
2 locks held by syz-executor.2/11324:
#0: ffff88803afeb118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device drivers/bluetooth/hci_vhci.c:479 [inline]
#0: ffff88803afeb118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_get_user drivers/bluetooth/hci_vhci.c:537 [inline]
#0: ffff88803afeb118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_write+0x2bb/0x470 drivers/bluetooth/hci_vhci.c:617
#1: ffffffff8f840e88 (uevent_sock_mutex){+.+.}-{3:3}, at: uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
#1: ffffffff8f840e88 (uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_net_broadcast lib/kobject_uevent.c:410 [inline]
#1: ffffffff8f840e88 (uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_env+0xaf4/0x1810 lib/kobject_uevent.c:593
2 locks held by syz-executor.1/11327:
#0: ffff88803387c118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device drivers/bluetooth/hci_vhci.c:479 [inline]
#0: ffff88803387c118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_get_user drivers/bluetooth/hci_vhci.c:537 [inline]
#0: ffff88803387c118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_write+0x2bb/0x470 drivers/bluetooth/hci_vhci.c:617
#1: ffffffff8f840e88 (uevent_sock_mutex){+.+.}-{3:3}, at: uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
#1: ffffffff8f840e88 (uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_net_broadcast lib/kobject_uevent.c:410 [inline]
#1: ffffffff8f840e88 (uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_env+0xaf4/0x1810 lib/kobject_uevent.c:593
2 locks held by syz-executor.0/11329:
#0: ffff88806a19a118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device drivers/bluetooth/hci_vhci.c:479 [inline]
#0: ffff88806a19a118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_get_user drivers/bluetooth/hci_vhci.c:537 [inline]
#0: ffff88806a19a118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_write+0x2bb/0x470 drivers/bluetooth/hci_vhci.c:617
#1: ffffffff8f840e88 (uevent_sock_mutex){+.+.}-{3:3}, at: uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
#1: ffffffff8f840e88 (uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_net_broadcast lib/kobject_uevent.c:410 [inline]
#1: ffffffff8f840e88 (uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_env+0xaf4/0x1810 lib/kobject_uevent.c:593
2 locks held by syz-executor.3/11332:
#0: ffff88804e82b118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device drivers/bluetooth/hci_vhci.c:479 [inline]
#0: ffff88804e82b118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_get_user drivers/bluetooth/hci_vhci.c:537 [inline]
#0: ffff88804e82b118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_write+0x2bb/0x470 drivers/bluetooth/hci_vhci.c:617
#1: ffffffff8f840e88 (uevent_sock_mutex){+.+.}-{3:3}, at: uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
#1: ffffffff8f840e88 (uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_net_broadcast lib/kobject_uevent.c:410 [inline]
#1: ffffffff8f840e88 (uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_env+0xaf4/0x1810 lib/kobject_uevent.c:593
2 locks held by syz-executor.2/11333:
#0: ffff888037758118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device drivers/bluetooth/hci_vhci.c:479 [inline]
#0: ffff888037758118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_get_user drivers/bluetooth/hci_vhci.c:537 [inline]
#0: ffff888037758118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_write+0x2bb/0x470 drivers/bluetooth/hci_vhci.c:617
#1: ffffffff8f840e88 (uevent_sock_mutex){+.+.}-{3:3}, at: uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
#1: ffffffff8f840e88 (uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_net_broadcast lib/kobject_uevent.c:410 [inline]
#1: ffffffff8f840e88 (uevent_sock_mutex){+.+.}-{3:3}, at: kobject_uevent_env+0xaf4/0x1810 lib/kobject_uevent.c:593
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.9.0-rc5-syzkaller-00159-gc942a0cd3603 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114
nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x29c/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xf86/0x1240 kernel/hung_task.c:380
kthread+0x2c1/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 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:
NMI backtrace for cpu 1
CPU: 1 PID: 11297 Comm: vhost-11296 Not tainted 6.9.0-rc5-syzkaller-00159-gc942a0cd3603 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:__local_bh_enable_ip+0xf6/0x120 kernel/softirq.c:377