INFO: task syz-executor.0:5551 blocked for more than 430 seconds.
      Not tainted 6.9.0-rc7-syzkaller-00056-g45db3ab70092 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D stack:0     pid:5551  tgid:5549  ppid:3200   flags:0x00400005
Call trace:
 __switch_to+0x1c8/0x2a0 arch/arm64/kernel/process.c:553
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0xad4/0x2b18 kernel/sched/core.c:6746
 __schedule_loop kernel/sched/core.c:6823 [inline]
 schedule+0xd0/0x304 kernel/sched/core.c:6838
 __lock_sock+0xfc/0x1bc net/core/sock.c:2960
 lock_sock_nested+0xcc/0xe8 net/core/sock.c:3540
 lock_sock include/net/sock.h:1673 [inline]
 sockopt_lock_sock net/core/sock.c:1061 [inline]
 sockopt_lock_sock+0x58/0x74 net/core/sock.c:1052
 do_tcp_setsockopt+0x588/0x1b0c net/ipv4/tcp.c:3514
 tcp_setsockopt+0xb0/0xcc net/ipv4/tcp.c:3739
 sock_common_setsockopt+0x70/0xe0 net/core/sock.c:3727
 do_sock_setsockopt+0x17c/0x354 net/socket.c:2311
 __sys_setsockopt+0xdc/0x178 net/socket.c:2334
 __do_sys_setsockopt net/socket.c:2343 [inline]
 __se_sys_setsockopt net/socket.c:2340 [inline]
 __arm64_sys_setsockopt+0xa4/0x100 net/socket.c:2340
 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline]
 invoke_syscall+0x6c/0x25c arch/arm64/kernel/syscall.c:48
 el0_svc_common.constprop.0+0xac/0x230 arch/arm64/kernel/syscall.c:133
 do_el0_svc_compat+0x40/0x64 arch/arm64/kernel/syscall.c:158
 el0_svc_compat+0x4c/0x17c arch/arm64/kernel/entry-common.c:852
 el0t_32_sync_handler+0x98/0x13c arch/arm64/kernel/entry-common.c:862
 el0t_32_sync+0x194/0x198 arch/arm64/kernel/entry.S:603

Showing all locks held in the system:
7 locks held by kworker/1:1/27:
1 lock held by khungtaskd/30:
 #0: ffff80008690d7a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x44/0x2d4 kernel/locking/lockdep.c:6608
2 locks held by kworker/u8:2/52:
3 locks held by kworker/1:2/765:
3 locks held by kworker/u8:8/973:
5 locks held by kworker/u8:12/2044:
1 lock held by klogd/2994:
1 lock held by udevd/3005:
2 locks held by getty/3125:
 #0: ffff0000136d80a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff8000896fd2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x93c/0xe9c drivers/tty/n_tty.c:2201
2 locks held by sshd/3181:
2 locks held by syz-fuzzer/3185:
2 locks held by syz-fuzzer/4053:
2 locks held by syz-executor.0/5550:
1 lock held by syz-executor.0/5551:
 #0: ffff00001f485818 (sk_lock-AF_INET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1673 [inline]
 #0: ffff00001f485818 (sk_lock-AF_INET){+.+.}-{0:0}, at: sockopt_lock_sock net/core/sock.c:1061 [inline]
 #0: ffff00001f485818 (sk_lock-AF_INET){+.+.}-{0:0}, at: sockopt_lock_sock+0x58/0x74 net/core/sock.c:1052
2 locks held by udevd/5562:
3 locks held by kworker/u8:4/5565:
 #0: ffff000012e85948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x6ac/0x1898 kernel/workqueue.c:3242
 #1: ffff80008a727ce0 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6d4/0x1898 kernel/workqueue.c:3242
 #2: ffff800087b5de68 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x1c/0x28 net/core/rtnetlink.c:79
3 locks held by syz-executor.1/5566:
1 lock held by udevd/5567:

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