INFO: task dhcpcd:3967 blocked for more than 147 seconds.
Not tainted 6.1.133-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:dhcpcd state:D stack:0 pid:3967 ppid:3966 flags:0x00000004
Call trace:
__switch_to+0x308/0x598 arch/arm64/kernel/process.c:553
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0xef4/0x1d44 kernel/sched/core.c:6561
schedule+0xc4/0x170 kernel/sched/core.c:6637
schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6696
__mutex_lock_common+0xbd8/0x21a0 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x38/0x44 kernel/locking/mutex.c:799
rtnl_lock net/core/rtnetlink.c:74 [inline]
rtnetlink_rcv_msg+0x6f0/0xd9c net/core/rtnetlink.c:6147
netlink_rcv_skb+0x20c/0x3b8 net/netlink/af_netlink.c:2493
rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6168
netlink_unicast_kernel net/netlink/af_netlink.c:1311 [inline]
netlink_unicast+0x65c/0x898 net/netlink/af_netlink.c:1337
netlink_sendmsg+0x844/0xb28 net/netlink/af_netlink.c:1859
sock_sendmsg_nosec net/socket.c:718 [inline]
__sock_sendmsg net/socket.c:730 [inline]
____sys_sendmsg+0x55c/0x8c4 net/socket.c:2519
___sys_sendmsg net/socket.c:2573 [inline]
__sys_sendmsg+0x26c/0x33c net/socket.c:2602
__do_sys_sendmsg net/socket.c:2611 [inline]
__se_sys_sendmsg net/socket.c:2609 [inline]
__arm64_sys_sendmsg+0x80/0x94 net/socket.c:2609
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
INFO: task syz-executor:5526 blocked for more than 147 seconds.
Not tainted 6.1.133-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:0 pid:5526 ppid:1 flags:0x0000000d
Call trace:
__switch_to+0x308/0x598 arch/arm64/kernel/process.c:553
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0xef4/0x1d44 kernel/sched/core.c:6561
schedule+0xc4/0x170 kernel/sched/core.c:6637
schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6696
__mutex_lock_common+0xbd8/0x21a0 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x38/0x44 kernel/locking/mutex.c:799
rtnl_lock+0x20/0x2c net/core/rtnetlink.c:74
tun_detach drivers/net/tun.c:698 [inline]
tun_chr_close+0x44/0x1f8 drivers/net/tun.c:3492
__fput+0x1c8/0x7c8 fs/file_table.c:320
____fput+0x20/0x30 fs/file_table.c:348
task_work_run+0x240/0x2f0 kernel/task_work.c:203
exit_task_work include/linux/task_work.h:39 [inline]
do_exit+0x550/0x1a84 kernel/exit.c:871
do_group_exit+0x194/0x22c kernel/exit.c:1021
get_signal+0x143c/0x1528 kernel/signal.c:2871
do_signal arch/arm64/kernel/signal.c:1076 [inline]
do_notify_resume+0x388/0x2cb8 arch/arm64/kernel/signal.c:1129
prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline]
exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline]
el0_svc+0x9c/0x168 arch/arm64/kernel/entry-common.c:638
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
INFO: task syz-executor:5857 blocked for more than 149 seconds.
Not tainted 6.1.133-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:0 pid:5857 ppid:1 flags:0x00000009
Call trace:
__switch_to+0x308/0x598 arch/arm64/kernel/process.c:553
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0xef4/0x1d44 kernel/sched/core.c:6561
schedule+0xc4/0x170 kernel/sched/core.c:6637
schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6696
__mutex_lock_common+0xbd8/0x21a0 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x38/0x44 kernel/locking/mutex.c:799
rtnl_lock+0x20/0x2c net/core/rtnetlink.c:74
wg_netns_pre_exit+0x2c/0x1d0 drivers/net/wireguard/device.c:420
ops_pre_exit_list net/core/net_namespace.c:162 [inline]
setup_net+0x690/0xb88 net/core/net_namespace.c:353
copy_net_ns+0x2ec/0x58c net/core/net_namespace.c:508
create_new_namespaces+0x344/0x614 kernel/nsproxy.c:110
unshare_nsproxy_namespaces+0x108/0x158 kernel/nsproxy.c:226
ksys_unshare+0x424/0x7e4 kernel/fork.c:3201
__do_sys_unshare kernel/fork.c:3272 [inline]
__se_sys_unshare kernel/fork.c:3270 [inline]
__arm64_sys_unshare+0x3c/0x50 kernel/fork.c:3270
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
INFO: task syz-executor:5906 blocked for more than 149 seconds.
Not tainted 6.1.133-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:0 pid:5906 ppid:1 flags:0x00000001
Call trace:
__switch_to+0x308/0x598 arch/arm64/kernel/process.c:553
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0xef4/0x1d44 kernel/sched/core.c:6561
schedule+0xc4/0x170 kernel/sched/core.c:6637
schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6696
__mutex_lock_common+0xbd8/0x21a0 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x38/0x44 kernel/locking/mutex.c:799
rtnl_lock net/core/rtnetlink.c:74 [inline]
rtnetlink_rcv_msg+0x6f0/0xd9c net/core/rtnetlink.c:6147
netlink_rcv_skb+0x20c/0x3b8 net/netlink/af_netlink.c:2493
rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6168
netlink_unicast_kernel net/netlink/af_netlink.c:1311 [inline]
netlink_unicast+0x65c/0x898 net/netlink/af_netlink.c:1337
netlink_sendmsg+0x844/0xb28 net/netlink/af_netlink.c:1859
sock_sendmsg_nosec net/socket.c:718 [inline]
__sock_sendmsg net/socket.c:730 [inline]
__sys_sendto+0x3b8/0x508 net/socket.c:2153
__do_sys_sendto net/socket.c:2165 [inline]
__se_sys_sendto net/socket.c:2161 [inline]
__arm64_sys_sendto+0xd8/0xf8 net/socket.c:2161
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffff800015cd79f0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:517
1 lock held by rcu_tasks_trace/13:
#0: ffff800015cd81f0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:517
1 lock held by khungtaskd/28:
#0: ffff800015cd7820 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:349
2 locks held by kworker/u4:5/1608:
1 lock held by klogd/3902:
1 lock held by dhcpcd/3967:
#0: ffff80001818a3c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffff80001818a3c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6f0/0xd9c net/core/rtnetlink.c:6147
2 locks held by getty/4053:
#0: ffff0000d674d098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
#1: ffff80001d9002f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1214 drivers/tty/n_tty.c:2198
3 locks held by kworker/1:7/4400:
#0: ffff0000c0020938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x6bc/0x1484 kernel/workqueue.c:2265
#1: ffff800021317c20 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x6fc/0x1484 kernel/workqueue.c:2267
#2: ffff80001818a3c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:74
3 locks held by kworker/1:14/4407:
#0: ffff0000d645b538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x6bc/0x1484 kernel/workqueue.c:2265
#1: ffff8000216f7c20 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6fc/0x1484 kernel/workqueue.c:2267
#2: ffff80001818a3c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:74
3 locks held by syz-executor/4422:
#0: ffff0000db68d0b8 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close net/bluetooth/hci_core.c:508 [inline]
#0: ffff0000db68d0b8 (&hdev->req_lock){+.+.}-{3:3}, at: hci_unregister_dev+0x1f8/0x4c4 net/bluetooth/hci_core.c:2707
#1: ffff0000db68c078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x39c/0xf1c net/bluetooth/hci_sync.c:5165
#2: ffff8000182e3008 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1799 [inline]
#2: ffff8000182e3008 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xb0/0x27c net/bluetooth/hci_conn.c:2503
3 locks held by kworker/u4:9/4540:
4 locks held by kworker/u4:11/4627:
#0: ffff0000c0845138 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x6bc/0x1484 kernel/workqueue.c:2265
#1: ffff800022967c20 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x6fc/0x1484 kernel/workqueue.c:2267
#2: ffff80001817ddd0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x13c/0xaec net/core/net_namespace.c:594
#3: ffff800015cdcd00 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x58/0x5c4 kernel/rcu/tree.c:4019
3 locks held by kworker/0:9/4678:
#0: ffff0000d645b538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x6bc/0x1484 kernel/workqueue.c:2265
#1: ffff800022ad7c20 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6fc/0x1484 kernel/workqueue.c:2267
#2: ffff80001818a3c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:74
2 locks held by kworker/u4:15/4884:
3 locks held by kworker/u4:17/4923:
#0: ffff0000c0029138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x6bc/0x1484 kernel/workqueue.c:2265
#1: ffff800024417c20 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x6fc/0x1484 kernel/workqueue.c:2267
#2: ffff80001818a3c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:74
2 locks held by kworker/0:10/5001:
#0: ffff0000c0020938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x6bc/0x1484 kernel/workqueue.c:2265
#1: ffff800024977c20 (free_ipc_work){+.+.}-{0:0}, at: process_one_work+0x6fc/0x1484 kernel/workqueue.c:2267
2 locks held by syz-executor/5526:
#0: ffff80001818a3c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:74
#1: ffff800015cdce38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:291 [inline]
#1: ffff800015cdce38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3e0/0x77c kernel/rcu/tree_exp.h:962
2 locks held by syz-executor/5857:
#0: ffff80001817ddd0 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x2cc/0x58c net/core/net_namespace.c:504
#1: ffff80001818a3c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:74
1 lock held by syz-executor/5906:
#0: ffff80001818a3c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffff80001818a3c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6f0/0xd9c net/core/rtnetlink.c:6147
2 locks held by kworker/u4:22/5977:
#0: ffff0000c0029138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x6bc/0x1484 kernel/workqueue.c:2265
#1: ffff8000238f7c20 ((reaper_work).work){+.+.}-{0:0}, at: process_one_work+0x6fc/0x1484 kernel/workqueue.c:2267
1 lock held by syz-executor/6221:
#0: ffff80001818a3c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffff80001818a3c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6f0/0xd9c net/core/rtnetlink.c:6147
1 lock held by syz-executor/6262:
#0: ffff80001818a3c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffff80001818a3c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6f0/0xd9c net/core/rtnetlink.c:6147
1 lock held by syz-executor/6555:
#0: ffff80001818a3c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffff80001818a3c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6f0/0xd9c net/core/rtnetlink.c:6147
1 lock held by syz-executor/6604:
#0: ffff80001818a3c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffff80001818a3c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6f0/0xd9c net/core/rtnetlink.c:6147
1 lock held by syz-executor/6849:
#0: ffff80001818a3c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffff80001818a3c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6f0/0xd9c net/core/rtnetlink.c:6147
1 lock held by syz.4.573/6879:
#0: ffff0000c62ee148 (&mm->mmap_lock){++++}-{3:3}, at: mmap_write_lock_killable include/linux/mmap_lock.h:87 [inline]
#0: ffff0000c62ee148 (&mm->mmap_lock){++++}-{3:3}, at: vm_mmap_pgoff+0x15c/0x2b4 mm/util.c:518
1 lock held by syz.4.573/6880:
=============================================