INFO: task kworker/u8:3:53 blocked for more than 122 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:3    state:D stack:0     pid:53    tgid:53    ppid:2      flags:0x00004000
Workqueue: events_unbound linkwatch_event
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5996 [inline]
 __schedule+0x1528/0x1fb0 kernel/sched/core.c:7846
 __schedule_loop kernel/sched/core.c:7927 [inline]
 schedule+0xc5/0x240 kernel/sched/core.c:7942
 schedule_preempt_disabled+0x14/0x30 kernel/sched/core.c:7999
 __mutex_lock_common kernel/locking/mutex.c:707 [inline]
 __mutex_lock+0x960/0x1bb0 kernel/locking/mutex.c:803
 __mutex_lock_slowpath+0xe/0x20 kernel/locking/mutex.c:1134
 mutex_lock+0x113/0x1d0 kernel/locking/mutex.c:285
 rtnl_lock+0x19/0x20 net/core/rtnetlink.c:79
 linkwatch_event+0x12/0x60 net/core/link_watch.c:285
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0x7d4/0x1020 kernel/workqueue.c:3319
 worker_thread+0xc70/0x10b0 kernel/workqueue.c:3400
 kthread+0x2c9/0x370 kernel/kthread.c:389
 ret_from_fork+0x64/0xa0 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
INFO: task syz-executor:685 blocked for more than 124 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:0     pid:685   tgid:685   ppid:1      flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5996 [inline]
 __schedule+0x1528/0x1fb0 kernel/sched/core.c:7846
 __schedule_loop kernel/sched/core.c:7927 [inline]
 schedule+0xc5/0x240 kernel/sched/core.c:7942
 schedule_preempt_disabled+0x14/0x30 kernel/sched/core.c:7999
 __mutex_lock_common kernel/locking/mutex.c:707 [inline]
 __mutex_lock+0x960/0x1bb0 kernel/locking/mutex.c:803
 __mutex_lock_slowpath+0xe/0x20 kernel/locking/mutex.c:1134
 mutex_lock+0x113/0x1d0 kernel/locking/mutex.c:285
 rtnl_lock+0x19/0x20 net/core/rtnetlink.c:79
 wg_netns_pre_exit+0x22/0x190 drivers/net/wireguard/device.c:415
 ops_pre_exit_list net/core/net_namespace.c:163 [inline]
 setup_net+0x48f/0x9b0 net/core/net_namespace.c:373
 copy_net_ns+0x512/0xa30 net/core/net_namespace.c:510
 create_new_namespaces+0x3b5/0x720 kernel/nsproxy.c:110
 unshare_nsproxy_namespaces+0x124/0x180 kernel/nsproxy.c:228
 ksys_unshare+0x502/0x880 kernel/fork.c:3355
 __do_sys_unshare kernel/fork.c:3426 [inline]
 __se_sys_unshare kernel/fork.c:3424 [inline]
 __x64_sys_unshare+0x3c/0x50 kernel/fork.c:3424
 x64_sys_call+0x2998/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:273
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fe17119bfa7
RSP: 002b:00007ffd30611e78 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007fe171415f40 RCX: 00007fe17119bfa7
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000000
RBP: 00007fe1714167b8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000008
R13: 0000000000000003 R14: 00007ffd306120b8 R15: 0000000000000000
 </TASK>
INFO: task syz-executor:692 blocked for more than 125 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:0     pid:692   tgid:692   ppid:1      flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5996 [inline]
 __schedule+0x1528/0x1fb0 kernel/sched/core.c:7846
 __schedule_loop kernel/sched/core.c:7927 [inline]
 schedule+0xc5/0x240 kernel/sched/core.c:7942
 schedule_preempt_disabled+0x14/0x30 kernel/sched/core.c:7999
 __mutex_lock_common kernel/locking/mutex.c:707 [inline]
 __mutex_lock+0x960/0x1bb0 kernel/locking/mutex.c:803
 __mutex_lock_slowpath+0xe/0x20 kernel/locking/mutex.c:1134
 mutex_lock+0x113/0x1d0 kernel/locking/mutex.c:285
 rtnl_lock+0x19/0x20 net/core/rtnetlink.c:79
 fib_net_exit_batch+0x24/0xa0 net/ipv4/fib_frontend.c:1652
 ops_exit_list net/core/net_namespace.c:178 [inline]
 setup_net+0x70f/0x9b0 net/core/net_namespace.c:388
 copy_net_ns+0x512/0xa30 net/core/net_namespace.c:510
 create_new_namespaces+0x3b5/0x720 kernel/nsproxy.c:110
 unshare_nsproxy_namespaces+0x124/0x180 kernel/nsproxy.c:228
 ksys_unshare+0x502/0x880 kernel/fork.c:3355
 __do_sys_unshare kernel/fork.c:3426 [inline]
 __se_sys_unshare kernel/fork.c:3424 [inline]
 __x64_sys_unshare+0x3c/0x50 kernel/fork.c:3424
 x64_sys_call+0x2998/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:273
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fdc0059bfa7
RSP: 002b:00007ffc00832ae8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007fdc00815f40 RCX: 00007fdc0059bfa7
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000000
RBP: 00007fdc008167b8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000008
R13: 0000000000000003 R14: 00007ffc00832d28 R15: 0000000000000000
 </TASK>
INFO: task syz-executor:704 blocked for more than 126 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:0     pid:704   tgid:704   ppid:1      flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5996 [inline]
 __schedule+0x1528/0x1fb0 kernel/sched/core.c:7846
 __schedule_loop kernel/sched/core.c:7927 [inline]
 schedule+0xc5/0x240 kernel/sched/core.c:7942
 schedule_preempt_disabled+0x14/0x30 kernel/sched/core.c:7999
 __mutex_lock_common kernel/locking/mutex.c:707 [inline]
 __mutex_lock+0x960/0x1bb0 kernel/locking/mutex.c:803
 __mutex_lock_slowpath+0xe/0x20 kernel/locking/mutex.c:1134
 mutex_lock+0x113/0x1d0 kernel/locking/mutex.c:285
 rtnl_lock+0x19/0x20 net/core/rtnetlink.c:79
 ip_tunnel_init_net+0x30c/0x890 net/ipv4/ip_tunnel.c:1145
 ipip_init_net+0x2d/0x40 net/ipv4/ipip.c:601
 ops_init+0x1af/0x5d0 net/core/net_namespace.c:139
 setup_net+0x227/0x9b0 net/core/net_namespace.c:356
 copy_net_ns+0x512/0xa30 net/core/net_namespace.c:510
 create_new_namespaces+0x3b5/0x720 kernel/nsproxy.c:110
 unshare_nsproxy_namespaces+0x124/0x180 kernel/nsproxy.c:228
 ksys_unshare+0x502/0x880 kernel/fork.c:3355
 __do_sys_unshare kernel/fork.c:3426 [inline]
 __se_sys_unshare kernel/fork.c:3424 [inline]
 __x64_sys_unshare+0x3c/0x50 kernel/fork.c:3424
 x64_sys_call+0x2998/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:273
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f681459bfa7
RSP: 002b:00007ffcce43f268 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007f6814815f40 RCX: 00007f681459bfa7
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000000
RBP: 00007f68148167b8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000008
R13: 0000000000000003 R14: 00007ffcce43f4a8 R15: 0000000000000000
 </TASK>
INFO: task syz-executor:708 blocked for more than 127 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:0     pid:708   tgid:708   ppid:1      flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5996 [inline]
 __schedule+0x1528/0x1fb0 kernel/sched/core.c:7846
 __schedule_loop kernel/sched/core.c:7927 [inline]
 schedule+0xc5/0x240 kernel/sched/core.c:7942
 schedule_preempt_disabled+0x14/0x30 kernel/sched/core.c:7999
 __mutex_lock_common kernel/locking/mutex.c:707 [inline]
 __mutex_lock+0x960/0x1bb0 kernel/locking/mutex.c:803
 __mutex_lock_slowpath+0xe/0x20 kernel/locking/mutex.c:1134
 mutex_lock+0x113/0x1d0 kernel/locking/mutex.c:285
 rtnl_lock+0x19/0x20 net/core/rtnetlink.c:79
 ip_tunnel_init_net+0x30c/0x890 net/ipv4/ip_tunnel.c:1145