INFO: task syz.4.1439:12012 blocked for more than 146 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.1439      state:D stack:28488 pid:12012 tgid:12007 ppid:5629   task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5520 [inline]
 __schedule+0x17db/0x58f0 kernel/sched/core.c:7270
 __schedule_loop kernel/sched/core.c:7347 [inline]
 schedule+0x164/0x2b0 kernel/sched/core.c:7362
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7419
 __mutex_lock_common kernel/locking/mutex.c:726 [inline]
 __mutex_lock+0x7c1/0x1550 kernel/locking/mutex.c:821
 rtnl_net_lock include/linux/rtnetlink.h:134 [inline]
 devinet_ioctl+0x2fb/0x1c50 net/ipv4/devinet.c:1122
 inet_ioctl+0x42a/0x560 net/ipv4/af_inet.c:1006
 sock_do_ioctl+0x101/0x320 net/socket.c:1325
 sock_ioctl+0x57a/0x7e0 net/socket.c:1446