Warning: Permanently added '10.128.0.162' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 28.049616] hrtimer: interrupt took 45177 ns [ 28.061414] ------------[ cut here ]------------ [ 28.066278] WARNING: CPU: 0 PID: 7958 at include/net/sock.h:1520 strp_data_ready+0x2a2/0x330 [ 28.074843] Kernel panic - not syncing: panic_on_warn set ... [ 28.074843] [ 28.082198] CPU: 0 PID: 7958 Comm: syz-executor493 Not tainted 4.14.260-syzkaller #0 [ 28.090067] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.099409] Call Trace: [ 28.101982] [ 28.104127] dump_stack+0x1b2/0x281 [ 28.107754] panic+0x1f9/0x42d [ 28.110939] ? add_taint.cold+0x16/0x16 [ 28.114910] ? strp_data_ready+0x2a2/0x330 [ 28.119142] ? strp_data_ready+0x2a2/0x330 [ 28.123364] __warn.cold+0x20/0x44 [ 28.126896] ? ist_end_non_atomic+0x10/0x10 [ 28.131204] ? strp_data_ready+0x2a2/0x330 [ 28.135428] report_bug+0x208/0x250 [ 28.139050] do_error_trap+0x195/0x2d0 [ 28.142928] ? math_error+0x2d0/0x2d0 [ 28.146723] ? trace_hardirqs_on+0x10/0x10 [ 28.150950] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 28.155785] invalid_op+0x1b/0x40 [ 28.159228] RIP: 0010:strp_data_ready+0x2a2/0x330 [ 28.164053] RSP: 0018:ffff8880ba407838 EFLAGS: 00010206 [ 28.169405] RAX: ffff8880971fe3c0 RBX: ffff888095c9d648 RCX: 1ffffffff127a3c4 [ 28.176670] RDX: 0000000000000100 RSI: 00000000ffffffff RDI: 0000000000000286 [ 28.183934] RBP: ffff8880a4ca6e00 R08: ffffffff8b9cc4a8 R09: 0000000000000000 [ 28.191190] R10: ffff8880971fed10 R11: ffff8880971fe3c0 R12: ffff888095c9d650 [ 28.198450] R13: ffff8880a4ca6e60 R14: ffff8880a4ca6fa0 R15: 0000000000010100 [ 28.205725] ? strp_data_ready+0x2a2/0x330 [ 28.209956] psock_data_ready+0x51/0x70 [ 28.213927] __sock_queue_rcv_skb+0x4ec/0xc10 [ 28.218417] sock_queue_rcv_skb+0x37/0x50 [ 28.222556] rawv6_rcv+0x4bb/0xf70 [ 28.226089] ? skb_clone+0x6ac/0x9a0 [ 28.229795] raw6_local_deliver+0x3ea/0xa30 [ 28.234110] ? rawv6_rcv+0xf70/0xf70 [ 28.237815] ? check_preemption_disabled+0x35/0x240 [ 28.242827] ip6_input_finish+0x427/0x1580 [ 28.247049] ? ip6_input+0x140/0x300 [ 28.250759] ? lock_downgrade+0x740/0x740 [ 28.254900] ip6_input+0xb9/0x300 [ 28.258346] ? ip6_input_finish+0x1580/0x1580 [ 28.262830] ? ip6table_mangle_net_exit+0x90/0x90 [ 28.267665] ? ip6_rcv_finish+0x7a0/0x7a0 [ 28.271814] ip6_rcv_finish+0x23b/0x7a0 [ 28.275778] ipv6_rcv+0xac7/0x1b60 [ 28.279314] ? ip6_input+0x300/0x300 [ 28.283024] ? ip6_make_skb+0x3c0/0x3c0 [ 28.286990] ? ip6_input+0x300/0x300 [ 28.290699] __netif_receive_skb_core+0x15ee/0x2a30 [ 28.295710] ? lock_downgrade+0x740/0x740 [ 28.299848] ? is_skb_forwardable+0x1e0/0x1e0 [ 28.304332] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 28.309427] ? process_backlog+0x414/0x6f0 [ 28.313670] ? lock_acquire+0x170/0x3f0 [ 28.317638] ? process_backlog+0x1c2/0x6f0 [ 28.321870] __netif_receive_skb+0x27/0x1a0 [ 28.326183] process_backlog+0x218/0x6f0 [ 28.330238] ? net_rx_action+0x244/0xfd0 [ 28.334293] net_rx_action+0x466/0xfd0 [ 28.338179] ? napi_gro_frags+0x8f0/0x8f0 [ 28.342320] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 28.347764] __do_softirq+0x24d/0x9ff [ 28.351560] do_softirq_own_stack+0x2a/0x40 [ 28.355868] [ 28.358101] do_softirq.part.0+0x154/0x1b0 [ 28.362327] ? ip6_finish_output2+0xf6b/0x1f10 [ 28.366902] __local_bh_enable_ip+0x12b/0x170 [ 28.371392] ip6_finish_output2+0xf9e/0x1f10 [ 28.375798] ? ip6_forward_finish+0x470/0x470 [ 28.380283] ? lock_acquire+0x170/0x3f0 [ 28.384247] ? lock_downgrade+0x740/0x740 [ 28.388392] ip6_finish_output+0x5c6/0xd50 [ 28.392623] ip6_output+0x1c5/0x660 [ 28.396248] ? ip6_finish_output+0xd50/0xd50 [ 28.400652] ? ip6_output+0x660/0x660 [ 28.404455] ? trace_hardirqs_on_caller+0x3a8/0x580 [ 28.409470] ? ip6_fragment+0x2f40/0x2f40 [ 28.413616] ip6_local_out+0x93/0x170 [ 28.417413] ip6_send_skb+0x9b/0x2f0 [ 28.421120] ip6_push_pending_frames+0xaf/0xd0 [ 28.425694] rawv6_sendmsg+0x230b/0x2df0 [ 28.429753] ? compat_rawv6_setsockopt+0x100/0x100 [ 28.434677] ? lock_downgrade+0x740/0x740 [ 28.438821] ? __lock_acquire+0x5fc/0x3f20 [ 28.443048] ? perf_pmu_nop_int+0x5/0x10 [ 28.447101] ? group_sched_in+0x328/0x400 [ 28.451242] ? mark_held_locks+0xa6/0xf0 [ 28.455300] ? retint_kernel+0x2d/0x2d [ 28.459198] ? retint_kernel+0x2d/0x2d [ 28.463080] inet_sendmsg+0x11a/0x4e0 [ 28.466878] ? security_socket_sendmsg+0x83/0xb0 [ 28.471627] ? inet_recvmsg+0x4d0/0x4d0 [ 28.475592] sock_sendmsg+0xb5/0x100 [ 28.479298] sock_no_sendpage+0xe2/0x110 [ 28.483349] ? __sk_mem_schedule+0xd0/0xd0 [ 28.487573] ? switch_mm_irqs_off+0x601/0xeb0 [ 28.492068] ? mark_held_locks+0xa6/0xf0 [ 28.496123] ? __sk_mem_schedule+0xd0/0xd0 [ 28.500350] kernel_sendpage+0x82/0xd0 [ 28.504233] kcm_write_msgs+0x33b/0x1820 [ 28.508297] kcm_sendmsg+0x177c/0x1e10 [ 28.512176] ? trace_hardirqs_on+0x10/0x10 [ 28.516405] ? __bfs.part.0+0x174/0x470 [ 28.520381] ? kcm_sendpage+0x1480/0x1480 [ 28.524524] ? aa_file_perm+0x2dd/0xab0 [ 28.528489] ? lock_acquire+0x170/0x3f0 [ 28.532451] ? security_socket_sendmsg+0x83/0xb0 [ 28.537198] ? kcm_sendpage+0x1480/0x1480 [ 28.541348] sock_sendmsg+0xb5/0x100 [ 28.545076] sock_write_iter+0x22c/0x370 [ 28.549127] ? sock_sendmsg+0x100/0x100 [ 28.553092] ? trace_hardirqs_on_caller+0x3a8/0x580 [ 28.558106] ? retint_kernel+0x2d/0x2d [ 28.561982] ? iov_iter_init+0xa6/0x1c0 [ 28.565949] __vfs_write+0x44c/0x630 [ 28.569658] ? kernel_read+0x110/0x110 [ 28.573543] ? SyS_perf_event_open+0x5ea/0x24b0 [ 28.578204] ? rw_verify_area+0xe1/0x2a0 [ 28.582257] vfs_write+0x17f/0x4d0 [ 28.585790] SyS_write+0xf2/0x210 [ 28.589231] ? SyS_read+0x210/0x210 [ 28.592848] ? SyS_read+0x210/0x210 [ 28.596466] do_syscall_64+0x1d5/0x640 [ 28.600350] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 28.605531] RIP: 0033:0x7fc5de9281f9 [ 28.609228] RSP: 002b:00007fff7fca03d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 28.616924] RAX: ffffffffffffffda RBX: 00000000000f4240 RCX: 00007fc5de9281f9 [ 28.624207] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 [ 28.631483] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 28.638745] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc5de8eb9d0 [ 28.646006] R13: 0000000000000000 R14: 00007fff7fca0400 R15: 00007fff7fca03f0 [ 28.653668] Kernel Offset: disabled [ 28.657316] Rebooting in 86400 seconds..