[ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.123' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 29.048480] FAULT_INJECTION: forcing a failure. [ 29.048480] name failslab, interval 1, probability 0, space 0, times 1 [ 29.060058] CPU: 0 PID: 7968 Comm: syz-executor118 Not tainted 4.14.222-syzkaller #0 [ 29.068227] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.077712] Call Trace: [ 29.080299] dump_stack+0x1b2/0x281 [ 29.083919] should_fail.cold+0x10a/0x149 [ 29.088062] should_failslab+0xd6/0x130 [ 29.092058] __kmalloc+0x2c1/0x400 [ 29.095605] ? tracepoint_add_func+0x309/0x750 [ 29.100188] tracepoint_add_func+0x309/0x750 [ 29.104638] ? trace_kfree_skb_hit+0x20/0x20 [ 29.109064] tracepoint_probe_register+0x8c/0xc0 [ 29.113859] ? for_each_kernel_tracepoint+0x80/0x80 [ 29.118996] ? trace_kfree_skb_hit+0x20/0x20 [ 29.123577] net_dm_cmd_trace+0x28d/0x3a0 [ 29.127828] genl_family_rcv_msg+0x572/0xb20 [ 29.132657] ? __lock_acquire+0x5fc/0x3f20 [ 29.138454] ? genl_rcv+0x40/0x40 [ 29.141994] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 29.147488] ? trace_hardirqs_on+0x10/0x10 [ 29.151735] ? sock_sendmsg+0xb5/0x100 [ 29.155763] genl_rcv_msg+0xaf/0x140 [ 29.162590] netlink_rcv_skb+0x125/0x390 [ 29.168867] ? genl_family_rcv_msg+0xb20/0xb20 [ 29.173452] ? netlink_ack+0x9a0/0x9a0 [ 29.177343] ? lock_acquire+0x170/0x3f0 [ 29.182034] genl_rcv+0x24/0x40 [ 29.185491] netlink_unicast+0x437/0x610 [ 29.189732] ? netlink_sendskb+0xd0/0xd0 [ 29.193895] ? __check_object_size+0x179/0x230 [ 29.198557] netlink_sendmsg+0x62e/0xb80 [ 29.202619] ? nlmsg_notify+0x170/0x170 [ 29.206781] ? kernel_recvmsg+0x210/0x210 [ 29.210936] ? security_socket_sendmsg+0x83/0xb0 [ 29.215820] ? nlmsg_notify+0x170/0x170 [ 29.219815] sock_sendmsg+0xb5/0x100 [ 29.223556] ___sys_sendmsg+0x6c8/0x800 [ 29.227554] ? get_pid_task+0x91/0x130 [ 29.231456] ? copy_msghdr_from_user+0x3b0/0x3b0 [ 29.236225] ? lock_downgrade+0x740/0x740 [ 29.240645] ? proc_fail_nth_write+0x7b/0x180 [ 29.245160] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 29.250109] ? do_fault_around+0x35e/0x620 [ 29.254353] ? fsnotify+0x974/0x11b0 [ 29.258674] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 29.263604] ? vfs_write+0x35d/0x4d0 [ 29.267303] ? __fdget+0x167/0x1f0 [ 29.270830] ? sockfd_lookup_light+0xb2/0x160 [ 29.277317] __sys_sendmsg+0xa3/0x120 [ 29.281172] ? SyS_shutdown+0x160/0x160 [ 29.285144] ? SyS_read+0x210/0x210 [ 29.288931] ? __do_page_fault+0x159/0xad0 [ 29.293163] SyS_sendmsg+0x27/0x40 [ 29.296695] ? __sys_sendmsg+0x120/0x120 [ 29.300744] do_syscall_64+0x1d5/0x640 [ 29.304632] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 29.309813] RIP: 0033:0x4409b9 [ 29.313002] RSP: 002b:00007ffd1055b128 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 29.320713] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00000000004409b9 [ 29.327995] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000004 [ 29.335355] RBP: 00007ffd1055b140 R08: 0000000000000001 R09: 0000000000000001 [ 29.342622] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005 executing program [ 29.350150] R13: 431bde82d7b634db R14: 00000000004ae018 R15: 00000000004004a0 [ 29.365208] ------------[ cut here ]------------ [ 29.370014] WARNING: CPU: 0 PID: 7971 at kernel/tracepoint.c:210 tracepoint_add_func+0x21a/0x750 [ 29.378954] Kernel panic - not syncing: panic_on_warn set ... [ 29.378954] [ 29.386601] CPU: 0 PID: 7971 Comm: syz-executor118 Not tainted 4.14.222-syzkaller #0 [ 29.394588] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.404246] Call Trace: [ 29.406828] dump_stack+0x1b2/0x281 [ 29.410453] panic+0x1f9/0x42d [ 29.413656] ? add_taint.cold+0x16/0x16 [ 29.417688] ? tracepoint_add_func+0x21a/0x750 [ 29.422278] ? tracepoint_add_func+0x21a/0x750 [ 29.426976] __warn.cold+0x20/0x44 [ 29.430960] ? ist_end_non_atomic+0x10/0x10 [ 29.436508] ? tracepoint_add_func+0x21a/0x750 [ 29.441270] report_bug+0x208/0x250 [ 29.451578] do_error_trap+0x195/0x2d0 [ 29.455603] ? math_error+0x2d0/0x2d0 [ 29.463728] ? lock_acquire+0x170/0x3f0 [ 29.468426] ? tracepoint_probe_register+0x68/0xc0 [ 29.473922] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.478938] invalid_op+0x1b/0x40 [ 29.483083] RIP: 0010:tracepoint_add_func+0x21a/0x750 [ 29.488969] RSP: 0018:ffff8880a2acf658 EFLAGS: 00010297 [ 29.494437] RAX: ffff8880912f6200 RBX: 0000000000000000 RCX: 0000000000000001 [ 29.504145] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffff888096771518 [ 29.511517] RBP: ffffffff85cad7b0 R08: 0000000000000000 R09: 000000000004057e [ 29.518968] R10: ffff8880912f6b00 R11: ffff8880912f6200 R12: 00000000ffffffef [ 29.529639] R13: 00000000ffffffff R14: ffff888096771510 R15: dffffc0000000000 [ 29.537951] ? trace_drop_common.constprop.0+0x530/0x530 [ 29.543673] ? tracepoint_add_func+0x21a/0x750 [ 29.548448] ? trace_drop_common.constprop.0+0x530/0x530 [ 29.559920] ? trace_drop_common.constprop.0+0x530/0x530 [ 29.566247] tracepoint_probe_register+0x8c/0xc0 [ 29.571713] ? for_each_kernel_tracepoint+0x80/0x80 [ 29.576906] ? trace_drop_common.constprop.0+0x530/0x530 [ 29.582564] net_dm_cmd_trace+0x275/0x3a0 [ 29.587057] genl_family_rcv_msg+0x572/0xb20 [ 29.591567] ? __lock_acquire+0x5fc/0x3f20 [ 29.596243] ? genl_rcv+0x40/0x40 [ 29.599788] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 29.605798] ? trace_hardirqs_on+0x10/0x10 [ 29.610020] ? sock_sendmsg+0xb5/0x100 [ 29.613899] genl_rcv_msg+0xaf/0x140 [ 29.617793] netlink_rcv_skb+0x125/0x390 [ 29.621857] ? genl_family_rcv_msg+0xb20/0xb20 [ 29.626448] ? netlink_ack+0x9a0/0x9a0 [ 29.630532] ? lock_acquire+0x170/0x3f0 [ 29.634509] genl_rcv+0x24/0x40 [ 29.637803] netlink_unicast+0x437/0x610 [ 29.641965] ? netlink_sendskb+0xd0/0xd0 [ 29.646061] ? __check_object_size+0x179/0x230 [ 29.650901] netlink_sendmsg+0x62e/0xb80 [ 29.655722] ? nlmsg_notify+0x170/0x170 [ 29.659935] ? kernel_recvmsg+0x210/0x210 [ 29.664180] ? security_socket_sendmsg+0x83/0xb0 [ 29.669185] ? nlmsg_notify+0x170/0x170 [ 29.673182] sock_sendmsg+0xb5/0x100 [ 29.678383] ___sys_sendmsg+0x6c8/0x800 [ 29.683224] ? get_pid_task+0x91/0x130 [ 29.687643] ? copy_msghdr_from_user+0x3b0/0x3b0 [ 29.692912] ? lock_downgrade+0x740/0x740 [ 29.705435] ? proc_fail_nth_write+0x7b/0x180 [ 29.710136] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 29.715484] ? do_fault_around+0x35e/0x620 [ 29.721226] ? fsnotify+0x974/0x11b0 [ 29.725425] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 29.730885] ? vfs_write+0x35d/0x4d0 [ 29.735216] ? __fdget+0x167/0x1f0 [ 29.739289] ? sockfd_lookup_light+0xb2/0x160 [ 29.744082] __sys_sendmsg+0xa3/0x120 [ 29.748495] ? SyS_shutdown+0x160/0x160 [ 29.752563] ? SyS_read+0x210/0x210 [ 29.756482] ? __do_page_fault+0x159/0xad0 [ 29.760969] SyS_sendmsg+0x27/0x40 [ 29.764962] ? __sys_sendmsg+0x120/0x120 [ 29.769970] do_syscall_64+0x1d5/0x640 [ 29.773866] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 29.779633] RIP: 0033:0x4409b9 [ 29.782826] RSP: 002b:00007ffd1055b128 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 29.790695] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00000000004409b9 [ 29.800157] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000004 [ 29.807600] RBP: 00007ffd1055b140 R08: 0000000000000001 R09: 0000000000000001 [ 29.815835] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005 [ 29.823359] R13: 431bde82d7b634db R14: 00000000004ae018 R15: 00000000004004a0 [ 29.831674] Kernel Offset: disabled [ 29.835352] Rebooting in 86400 seconds..