INFO: task syz-executor.1:8357 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.1 state:D stack:0 pid:8357 ppid:2894 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_fast+0x8a/0xa8 net/core/sock.c:3523 [] lock_sock_fast include/net/sock.h:1731 [inline] [] tcp_ioctl+0xba/0x50c net/ipv4/tcp.c:611 [] inet_ioctl+0x142/0x2c2 net/ipv4/af_inet.c:981 [] sock_do_ioctl+0xca/0x204 net/socket.c:1201 [] sock_ioctl+0x29c/0x650 net/socket.c:1318 [] vfs_ioctl fs/ioctl.c:51 [inline] [] do_vfs_ioctl+0xf02/0x1530 fs/ioctl.c:830 [] __do_sys_ioctl fs/ioctl.c:868 [inline] [] sys_ioctl+0xc4/0x14c fs/ioctl.c:856 [] 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/29: #0: ffffffff8517d360 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x40/0x1f6 kernel/locking/lockdep.c:6547 1 lock held by klogd/2685: 2 locks held by getty/2832: #0: ff6000000939d098 (&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 1 lock held by syz-executor.1/8354: 1 lock held by syz-executor.1/8357: #0: ff60000009ab56f0 (sk_lock-AF_INET){+.+.}-{0:0}, at: inet_ioctl+0x142/0x2c2 net/ipv4/af_inet.c:981 1 lock held by syz-executor.0/8809: 1 lock held by syz-executor.0/8810: #0: ff6000001430e330 (sk_lock-AF_INET){+.+.}-{0:0}, at: inet_ioctl+0x142/0x2c2 net/ipv4/af_inet.c:981 2 locks held by syz-executor.0/9189: 1 lock held by syz-executor.1/9193: 1 lock held by syz-executor.1/9195: #0: ff60000009ab6f70 (sk_lock-AF_INET){+.+.}-{0:0}, at: inet_ioctl+0x142/0x2c2 net/ipv4/af_inet.c:981 1 lock held by syz-executor.0/9547: 1 lock held by syz-executor.0/9548: #0: ff60000009ab4ab0 (sk_lock-AF_INET){+.+.}-{0:0}, at: inet_ioctl+0x142/0x2c2 net/ipv4/af_inet.c:981 =============================================