Warning: Permanently added '10.128.1.53' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 28.452585] ------------[ cut here ]------------ [ 28.457485] WARNING: CPU: 1 PID: 7973 at include/net/sock.h:1520 strp_data_ready+0x2a2/0x330 [ 28.466059] Kernel panic - not syncing: panic_on_warn set ... [ 28.466059] [ 28.473422] CPU: 1 PID: 7973 Comm: syz-executor986 Not tainted 4.14.264-syzkaller #0 [ 28.481295] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.490644] Call Trace: [ 28.493220] [ 28.495372] dump_stack+0x1b2/0x281 [ 28.499002] panic+0x1f9/0x42d [ 28.502191] ? add_taint.cold+0x16/0x16 [ 28.506173] ? strp_data_ready+0x2a2/0x330 [ 28.510407] ? strp_data_ready+0x2a2/0x330 [ 28.514644] __warn.cold+0x20/0x44 [ 28.518194] ? ist_end_non_atomic+0x10/0x10 [ 28.522511] ? strp_data_ready+0x2a2/0x330 [ 28.526742] report_bug+0x208/0x250 [ 28.530370] do_error_trap+0x195/0x2d0 [ 28.534252] ? math_error+0x2d0/0x2d0 [ 28.538059] ? trace_hardirqs_on+0x10/0x10 [ 28.542322] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 28.547190] invalid_op+0x1b/0x40 [ 28.550641] RIP: 0010:strp_data_ready+0x2a2/0x330 [ 28.555472] RSP: 0018:ffff8880ba507838 EFLAGS: 00010206 [ 28.560831] RAX: ffff888099482100 RBX: ffff888095f3b648 RCX: 1ffffffff127a3cc [ 28.568105] RDX: 0000000000000100 RSI: 00000000ffffffff RDI: 0000000000000286 [ 28.575378] RBP: ffff8880a225ae40 R08: ffffffff8b9dcd30 R09: 0000000000058f20 [ 28.582646] R10: ffff888099482a50 R11: ffff888099482100 R12: ffff888095f3b650 [ 28.589911] R13: ffff8880a225aea0 R14: ffff8880a225afe0 R15: 0000000000010100 [ 28.597193] ? strp_data_ready+0x2a2/0x330 [ 28.601432] psock_data_ready+0x51/0x70 [ 28.605405] __sock_queue_rcv_skb+0x4ec/0xc10 [ 28.609902] sock_queue_rcv_skb+0x37/0x50 [ 28.614047] rawv6_rcv+0x4bb/0xf70 [ 28.617585] ? skb_clone+0x6ac/0x9a0 [ 28.621301] raw6_local_deliver+0x3ea/0xa30 [ 28.625631] ? rawv6_rcv+0xf70/0xf70 [ 28.629355] ? check_preemption_disabled+0x35/0x240 [ 28.634378] ip6_input_finish+0x427/0x1580 [ 28.638622] ? ip6_input+0x140/0x300 [ 28.642346] ? lock_downgrade+0x740/0x740 [ 28.646501] ip6_input+0xb9/0x300 [ 28.649955] ? ip6_input_finish+0x1580/0x1580 [ 28.654447] ? ip6table_mangle_net_exit+0x90/0x90 [ 28.659291] ? ip6_rcv_finish+0x7a0/0x7a0 [ 28.663444] ip6_rcv_finish+0x23b/0x7a0 [ 28.667426] ipv6_rcv+0xac7/0x1b60 [ 28.670974] ? __lock_acquire+0x690/0x3f20 [ 28.675316] ? ip6_input+0x300/0x300 [ 28.679056] ? ip6_make_skb+0x3c0/0x3c0 [ 28.683031] ? ip6_input+0x300/0x300 [ 28.686747] __netif_receive_skb_core+0x15ee/0x2a30 [ 28.691772] ? is_skb_forwardable+0x1e0/0x1e0 [ 28.696266] ? lock_downgrade+0x740/0x740 [ 28.700412] ? process_backlog+0x414/0x6f0 [ 28.704646] ? lock_acquire+0x170/0x3f0 [ 28.708617] ? process_backlog+0x1c2/0x6f0 [ 28.712945] __netif_receive_skb+0x27/0x1a0 [ 28.717266] process_backlog+0x218/0x6f0 [ 28.721327] ? net_rx_action+0x244/0xfd0 [ 28.725385] net_rx_action+0x466/0xfd0 [ 28.729278] ? napi_gro_frags+0x8f0/0x8f0 [ 28.733431] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 28.738897] __do_softirq+0x24d/0x9ff [ 28.742697] do_softirq_own_stack+0x2a/0x40 [ 28.747005] [ 28.749238] do_softirq.part.0+0x154/0x1b0 [ 28.753467] ? ip6_finish_output2+0xf6b/0x1f10 [ 28.758046] __local_bh_enable_ip+0x12b/0x170 [ 28.762548] ip6_finish_output2+0xf9e/0x1f10 [ 28.766964] ? ip6_forward_finish+0x470/0x470 [ 28.771544] ? lock_acquire+0x170/0x3f0 [ 28.775516] ? lock_downgrade+0x740/0x740 [ 28.779671] ip6_finish_output+0x5c6/0xd50 [ 28.783913] ip6_output+0x1c5/0x660 [ 28.787530] ? ip6_finish_output+0xd50/0xd50 [ 28.791935] ? ip6_output+0x660/0x660 [ 28.795726] ? ip6_mtu+0x18a/0x420 [ 28.799261] ? ip6_fragment+0x2f40/0x2f40 [ 28.803403] ip6_local_out+0x93/0x170 [ 28.807200] ip6_send_skb+0x9b/0x2f0 [ 28.810908] ip6_push_pending_frames+0xaf/0xd0 [ 28.815486] rawv6_sendmsg+0x230b/0x2df0 [ 28.819542] ? no_context+0x6b0/0x7c0 [ 28.823347] ? compat_rawv6_setsockopt+0x100/0x100 [ 28.828271] ? unwind_next_frame+0xe54/0x17d0 [ 28.832766] ? is_bpf_text_address+0xb8/0x150 [ 28.837256] ? kernel_text_address+0xbd/0xf0 [ 28.841661] ? __kernel_text_address+0x9/0x30 [ 28.846149] ? __save_stack_trace+0xa0/0x160 [ 28.850574] ? add_lock_to_list.constprop.0+0x17d/0x330 [ 28.855945] ? save_trace+0xd6/0x290 [ 28.859679] inet_sendmsg+0x11a/0x4e0 [ 28.863478] ? security_socket_sendmsg+0x83/0xb0 [ 28.868235] ? inet_recvmsg+0x4d0/0x4d0 [ 28.872210] sock_sendmsg+0xb5/0x100 [ 28.875921] sock_no_sendpage+0xe2/0x110 [ 28.879993] ? __sk_mem_schedule+0xd0/0xd0 [ 28.884221] ? mark_held_locks+0xa6/0xf0 [ 28.888261] ? __sk_mem_schedule+0xd0/0xd0 [ 28.892469] kernel_sendpage+0x82/0xd0 [ 28.896338] kcm_write_msgs+0x33b/0x1820 [ 28.900404] kcm_sendmsg+0x177c/0x1e10 [ 28.904303] ? trace_hardirqs_on+0x10/0x10 [ 28.908524] ? futex_wait_setup+0x260/0x260 [ 28.912829] ? lock_downgrade+0x740/0x740 [ 28.916966] ? kcm_sendpage+0x1480/0x1480 [ 28.921094] ? aa_file_perm+0x2dd/0xab0 [ 28.925053] ? lock_acquire+0x170/0x3f0 [ 28.929007] ? security_socket_sendmsg+0x83/0xb0 [ 28.933742] ? kcm_sendpage+0x1480/0x1480 [ 28.937867] sock_sendmsg+0xb5/0x100 [ 28.941564] sock_write_iter+0x22c/0x370 [ 28.945605] ? sock_sendmsg+0x100/0x100 [ 28.949561] ? lock_acquire+0x170/0x3f0 [ 28.953511] ? lock_downgrade+0x740/0x740 [ 28.957643] ? iov_iter_init+0xa6/0x1c0 [ 28.961597] __vfs_write+0x44c/0x630 [ 28.965295] ? kernel_read+0x110/0x110 [ 28.969171] ? rw_verify_area+0xe1/0x2a0 [ 28.973213] vfs_write+0x17f/0x4d0 [ 28.976731] SyS_write+0xf2/0x210 [ 28.980163] ? SyS_read+0x210/0x210 [ 28.983767] ? fput_many+0xe/0x140 [ 28.987286] ? do_syscall_64+0x4c/0x640 [ 28.991236] ? SyS_read+0x210/0x210 [ 28.994842] do_syscall_64+0x1d5/0x640 [ 28.998710] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 29.003877] RIP: 0033:0x7f3ba4770c19 [ 29.007567] RSP: 002b:00007f3ba47222f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 29.015250] RAX: ffffffffffffffda RBX: 00007f3ba47f9400 RCX: 00007f3ba4770c19 [ 29.022496] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 [ 29.029743] RBP: 00007f3ba47c67d0 R08: 0000000000000000 R09: 0000000000000000 [ 29.036994] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f3ba47c6078 [ 29.044240] R13: 656c6c616b7a7973 R14: 0100000000000000 R15: 00007f3ba47f9408 [ 29.051703] Kernel Offset: disabled [ 29.055355] Rebooting in 86400 seconds..