INFO: task syz-executor.0:11340 blocked for more than 430 seconds. Not tainted 6.4.0-rc1-syzkaller-00012-gb104dbedbe61 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:0 pid:11340 ppid:10986 flags:0x00000004 Call Trace: [] context_switch kernel/sched/core.c:5343 [inline] [] __schedule+0x682/0x16aa kernel/sched/core.c:6669 [] schedule+0x7a/0x100 kernel/sched/core.c:6745 [] __lock_sock+0x126/0x204 net/core/sock.c:2893 [] lock_sock_nested+0xbc/0xbe net/core/sock.c:3474 [] lock_sock include/net/sock.h:1697 [inline] [] sockopt_lock_sock+0x58/0x5a net/core/sock.c:1057 [] do_tcp_setsockopt+0x1b0/0x1862 net/ipv4/tcp.c:3572 [] tcp_setsockopt+0xb0/0xb4 net/ipv4/tcp.c:3807 [] sock_common_setsockopt+0x6a/0x7c net/core/sock.c:3663 [] __sys_setsockopt+0x25e/0x418 net/socket.c:2273 [] __do_sys_setsockopt net/socket.c:2284 [inline] [] sys_setsockopt+0x3a/0x4c net/socket.c:2281 [] syscall_handler+0xfa/0x148 arch/riscv/include/asm/syscall.h:90 [] do_trap_ecall_u+0xea/0xec arch/riscv/kernel/traps.c:279 [] ret_from_exception+0x0/0x64 arch/riscv/kernel/entry.S:102 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/13: #0: ffffffff8517d090 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x34/0x712 kernel/rcu/tasks.h:518 1 lock held by rcu_tasks_trace/14: #0: ffffffff8517cdf0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x34/0x712 kernel/rcu/tasks.h:518 1 lock held by khungtaskd/28: #0: ffffffff8517d360 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x40/0x1f6 kernel/locking/lockdep.c:6547 2 locks held by getty/2836: #0: ff60000012980098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3a/0x46 drivers/tty/tty_ldsem.c:340 #1: ff2000000027b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xb9c/0xd0c drivers/tty/n_tty.c:2176 3 locks held by kworker/0:2/6119: 2 locks held by kworker/u4:3/7480: #0: ff60000008429138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:642 [inline] #0: ff60000008429138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:670 [inline] #0: ff60000008429138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x50e/0xdb2 kernel/workqueue.c:2376 #1: ff200000050e7cf0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:642 [inline] #1: ff200000050e7cf0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:670 [inline] #1: ff200000050e7cf0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x50e/0xdb2 kernel/workqueue.c:2376 2 locks held by syz-executor.0/11339: 1 lock held by syz-executor.0/11340: #0: ff6000001043b230 (sk_lock-AF_INET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1697 [inline] #0: ff6000001043b230 (sk_lock-AF_INET){+.+.}-{0:0}, at: sockopt_lock_sock+0x58/0x5a net/core/sock.c:1057 2 locks held by syz-executor.1/11697: 1 lock held by syz-executor.1/11698: #0: ff60000013f7ef70 (sk_lock-AF_INET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1697 [inline] #0: ff60000013f7ef70 (sk_lock-AF_INET){+.+.}-{0:0}, at: sockopt_lock_sock+0x58/0x5a net/core/sock.c:1057 1 lock held by syz-executor.0/12053: 1 lock held by syz-executor.0/12054: #0: ff6000001043be70 (sk_lock-AF_INET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1697 [inline] #0: ff6000001043be70 (sk_lock-AF_INET){+.+.}-{0:0}, at: sockopt_lock_sock+0x58/0x5a net/core/sock.c:1057 2 locks held by syz-executor.1/12441: 1 lock held by modprobe/12445: =============================================