INFO: task syz-executor.2:6461 blocked for more than 143 seconds.
      Not tainted 6.10.0-rc2-next-20240607-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2  state:D stack:26416 pid:6461  tgid:6460  ppid:5119   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5192 [inline]
 __schedule+0x17e8/0x4a20 kernel/sched/core.c:6529
 __schedule_loop kernel/sched/core.c:6606 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6621
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
 register_nexthop_notifier+0x84/0x290 net/ipv4/nexthop.c:3871
 ops_init+0x359/0x610 net/core/net_namespace.c:139
 setup_net+0x515/0xca0 net/core/net_namespace.c:343
 copy_net_ns+0x4e2/0x7b0 net/core/net_namespace.c:508
 create_new_namespaces+0x425/0x7b0 kernel/nsproxy.c:110
 unshare_nsproxy_namespaces+0x124/0x180 kernel/nsproxy.c:228
 ksys_unshare+0x619/0xc10 kernel/fork.c:3304
 __do_sys_unshare kernel/fork.c:3375 [inline]
 __se_sys_unshare kernel/fork.c:3373 [inline]
 __x64_sys_unshare+0x38/0x40 kernel/fork.c:3373
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f071207cf69
RSP: 002b:00007f0712e000c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007f07121b3f80 RCX: 00007f071207cf69
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000068060200
RBP: 00007f07120da6fe R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f07121b3f80 R15: 00007ffd9ebbdd88
 </TASK>
INFO: task syz-executor.2:6464 blocked for more than 143 seconds.
      Not tainted 6.10.0-rc2-next-20240607-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2  state:D stack:28592 pid:6464  tgid:6460  ppid:5119   flags:0x00000006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5192 [inline]
 __schedule+0x17e8/0x4a20 kernel/sched/core.c:6529
 __schedule_loop kernel/sched/core.c:6606 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6621
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
 addrconf_add_ifaddr+0x1fc/0x340 net/ipv6/addrconf.c:3163
 inet6_ioctl+0x146/0x280 net/ipv6/af_inet6.c:582