INFO: task syz-executor.5:14781 blocked for more than 143 seconds.
      Not tainted 6.2.0-rc2-syzkaller-16046-gae87308093bc #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5  state:D stack:0     pid:14781 ppid:4439   flags:0x00000009
Call trace:
 __switch_to+0x180/0x298 arch/arm64/kernel/process.c:555
 context_switch kernel/sched/core.c:5244 [inline]
 __schedule+0x438/0x5a0 kernel/sched/core.c:6555
 schedule+0x64/0xa4 kernel/sched/core.c:6631
 __lock_sock+0x84/0x15c net/core/sock.c:2904
 lock_sock_nested+0xa8/0xd8 net/core/sock.c:3475
 __mptcp_close_ssk+0xa0/0x378 net/mptcp/protocol.c:2322
 mptcp_destroy_common+0x50/0x180 net/mptcp/protocol.c:3152
 mptcp_disconnect+0x80/0x110 net/mptcp/protocol.c:3003
 __inet_stream_connect+0x42c/0x55c net/ipv4/af_inet.c:717
 tcp_sendmsg_fastopen+0x19c/0x248 net/ipv4/tcp.c:1200
 mptcp_sendmsg_fastopen net/mptcp/protocol.c:1676 [inline]
 mptcp_sendmsg+0x11c/0xa00 net/mptcp/protocol.c:1715
 inet_sendmsg+0xb0/0x118 net/ipv4/af_inet.c:827
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg net/socket.c:734 [inline]
 ____sys_sendmsg+0x2f8/0x440 net/socket.c:2476
 ___sys_sendmsg net/socket.c:2530 [inline]
 __sys_sendmsg+0x1ac/0x228 net/socket.c:2559
 __do_sys_sendmsg net/socket.c:2568 [inline]
 __se_sys_sendmsg net/socket.c:2566 [inline]
 __arm64_sys_sendmsg+0x2c/0x3c net/socket.c:2566
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]
 el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x48/0x140 arch/arm64/kernel/syscall.c:197
 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/11:
 #0: ffff80000d635648 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x3c/0x450 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/12:
 #0: ffff80000d635c98 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x3c/0x450 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/27:
 #0: ffff80000d635520 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:324
2 locks held by getty/4086:
 #0: ffff0000c9241098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x28/0x58 drivers/tty/tty_ldisc.c:244
 #1: ffff80000f83e2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x19c/0x89c drivers/tty/n_tty.c:2177
3 locks held by syz-executor.5/14781:
 #0: ffff0001192d4330 (sk_lock-AF_INET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1725 [inline]
 #0: ffff0001192d4330 (sk_lock-AF_INET){+.+.}-{0:0}, at: mptcp_sendmsg+0x64/0xa00 net/mptcp/protocol.c:1708
 #1: ffff0001182ab030 (k-sk_lock-AF_INET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1725 [inline]
 #1: ffff0001182ab030 (k-sk_lock-AF_INET){+.+.}-{0:0}, at: mptcp_sendmsg_fastopen net/mptcp/protocol.c:1672 [inline]
 #1: ffff0001182ab030 (k-sk_lock-AF_INET){+.+.}-{0:0}, at: mptcp_sendmsg+0xe4/0xa00 net/mptcp/protocol.c:1715
 #2: ffff0001182ab030 (k-sk_lock-AF_INET/1){+.+.}-{0:0}, at: __mptcp_close_ssk+0xa0/0x378 net/mptcp/protocol.c:2322
3 locks held by syz-executor.5/14858:
 #0: ffff00011c5f1730 (sk_lock-AF_INET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1725 [inline]
 #0: ffff00011c5f1730 (sk_lock-AF_INET){+.+.}-{0:0}, at: mptcp_sendmsg+0x64/0xa00 net/mptcp/protocol.c:1708
 #1: ffff0000cb3edf30 (k-sk_lock-AF_INET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1725 [inline]
 #1: ffff0000cb3edf30 (k-sk_lock-AF_INET){+.+.}-{0:0}, at: mptcp_sendmsg_fastopen net/mptcp/protocol.c:1672 [inline]
 #1: ffff0000cb3edf30 (k-sk_lock-AF_INET){+.+.}-{0:0}, at: mptcp_sendmsg+0xe4/0xa00 net/mptcp/protocol.c:1715
 #2: ffff0000cb3edf30 (k-sk_lock-AF_INET/1){+.+.}-{0:0}, at: __mptcp_close_ssk+0xa0/0x378 net/mptcp/protocol.c:2322
3 locks held by syz-executor.5/14918:
 #0: ffff00011c5f2230 (sk_lock-AF_INET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1725 [inline]
 #0: ffff00011c5f2230 (sk_lock-AF_INET){+.+.}-{0:0}, at: mptcp_sendmsg+0x64/0xa00 net/mptcp/protocol.c:1708
 #1: ffff0000cb3eb030 (k-sk_lock-AF_INET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1725 [inline]
 #1: ffff0000cb3eb030 (k-sk_lock-AF_INET){+.+.}-{0:0}, at: mptcp_sendmsg_fastopen net/mptcp/protocol.c:1672 [inline]
 #1: ffff0000cb3eb030 (k-sk_lock-AF_INET){+.+.}-{0:0}, at: mptcp_sendmsg+0xe4/0xa00 net/mptcp/protocol.c:1715
 #2: ffff0000cb3eb030 (k-sk_lock-AF_INET/1){+.+.}-{0:0}, at: __mptcp_close_ssk+0xa0/0x378 net/mptcp/protocol.c:2322

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