[ 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. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.31' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 27.495017] FAULT_INJECTION: forcing a failure. [ 27.495017] name failslab, interval 1, probability 0, space 0, times 1 [ 27.506279] CPU: 0 PID: 7979 Comm: syz-executor334 Not tainted 4.14.290-syzkaller #0 [ 27.514140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 27.523567] Call Trace: [ 27.526132] dump_stack+0x1b2/0x281 [ 27.529739] should_fail.cold+0x10a/0x149 [ 27.533870] should_failslab+0xd6/0x130 [ 27.537820] __kmalloc+0x2c1/0x400 [ 27.541334] ? tracepoint_add_func+0x33f/0xa40 [ 27.545889] ? trace_kfree_skb_hit+0x20/0x20 [ 27.550273] tracepoint_add_func+0x33f/0xa40 [ 27.554659] ? trace_kfree_skb_hit+0x20/0x20 [ 27.559041] tracepoint_probe_register+0x8c/0xc0 [ 27.563783] ? for_each_kernel_tracepoint+0x80/0x80 [ 27.568785] ? trace_kfree_skb_hit+0x20/0x20 [ 27.573177] net_dm_cmd_trace+0x28d/0x3a0 [ 27.577303] genl_family_rcv_msg+0x572/0xb20 [ 27.581705] ? __lock_acquire+0x5fc/0x3f20 [ 27.585917] ? genl_rcv+0x40/0x40 [ 27.589355] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 27.594789] ? __kmalloc_node_track_caller+0x4c/0x70 [ 27.599876] ? trace_hardirqs_on+0x10/0x10 [ 27.604105] genl_rcv_msg+0xaf/0x140 [ 27.607799] netlink_rcv_skb+0x125/0x390 [ 27.611838] ? genl_family_rcv_msg+0xb20/0xb20 [ 27.616411] ? netlink_ack+0x9a0/0x9a0 [ 27.620274] ? lock_acquire+0x170/0x3f0 [ 27.624234] genl_rcv+0x24/0x40 [ 27.627500] netlink_unicast+0x437/0x610 [ 27.631540] ? netlink_sendskb+0xd0/0xd0 [ 27.635574] ? __check_object_size+0x179/0x230 [ 27.640130] netlink_sendmsg+0x648/0xbc0 [ 27.644165] ? nlmsg_notify+0x1b0/0x1b0 [ 27.648113] ? kernel_recvmsg+0x210/0x210 [ 27.652241] ? security_socket_sendmsg+0x83/0xb0 [ 27.656983] ? nlmsg_notify+0x1b0/0x1b0 [ 27.660942] sock_sendmsg+0xb5/0x100 [ 27.664634] ___sys_sendmsg+0x6c8/0x800 [ 27.668582] ? get_pid_task+0x91/0x130 [ 27.672442] ? copy_msghdr_from_user+0x3b0/0x3b0 [ 27.677176] ? lock_downgrade+0x740/0x740 [ 27.681315] ? proc_fail_nth_write+0x7b/0x180 [ 27.685782] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 27.690684] ? _raw_spin_unlock+0x29/0x40 [ 27.694805] ? do_fault_around+0x35e/0x620 [ 27.699017] ? fsnotify+0x974/0x11b0 [ 27.702704] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 27.707627] ? __handle_mm_fault+0x80f/0x4620 [ 27.712103] ? vfs_write+0x35d/0x4d0 [ 27.715788] ? __fdget+0x167/0x1f0 [ 27.719302] ? sockfd_lookup_light+0xb2/0x160 [ 27.723771] __sys_sendmsg+0xa3/0x120 [ 27.727562] ? SyS_shutdown+0x160/0x160 [ 27.731512] ? SyS_read+0x210/0x210 [ 27.735111] ? __do_page_fault+0x159/0xad0 [ 27.739317] SyS_sendmsg+0x27/0x40 [ 27.742829] ? __sys_sendmsg+0x120/0x120 [ 27.746862] do_syscall_64+0x1d5/0x640 [ 27.750735] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 27.755905] RIP: 0033:0x7f59046e5b09 [ 27.759589] RSP: 002b:00007ffdb781ebf8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 27.767269] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f59046e5b09 [ 27.774534] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 27.781781] RBP: 00007ffdb781ec10 R08: 0000000000000001 R09: 0000000000000001 [ 27.789029] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 executing program [ 27.796273] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 27.811820] ------------[ cut here ]------------ [ 27.816587] WARNING: CPU: 1 PID: 7980 at kernel/tracepoint.c:256 tracepoint_add_func+0x23c/0xa40 [ 27.825495] Kernel panic - not syncing: panic_on_warn set ... [ 27.825495] [ 27.832829] CPU: 1 PID: 7980 Comm: syz-executor334 Not tainted 4.14.290-syzkaller #0 [ 27.840682] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 27.850016] Call Trace: [ 27.852578] dump_stack+0x1b2/0x281 [ 27.856181] panic+0x1f9/0x42d [ 27.859349] ? add_taint.cold+0x16/0x16 [ 27.863299] ? tracepoint_add_func+0x23c/0xa40 [ 27.867905] ? tracepoint_add_func+0x23c/0xa40 [ 27.872465] __warn.cold+0x20/0x44 [ 27.875999] ? ist_end_non_atomic+0x10/0x10 [ 27.880299] ? tracepoint_add_func+0x23c/0xa40 [ 27.884854] report_bug+0x208/0x250 [ 27.888455] do_error_trap+0x195/0x2d0 [ 27.892322] ? math_error+0x2d0/0x2d0 [ 27.896096] ? lock_acquire+0x170/0x3f0 [ 27.900048] ? tracepoint_probe_register+0x68/0xc0 [ 27.904968] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 27.909799] invalid_op+0x1b/0x40 [ 27.913235] RIP: 0010:tracepoint_add_func+0x23c/0xa40 [ 27.918398] RSP: 0018:ffff88809c42f650 EFLAGS: 00010297 [ 27.923743] RAX: ffff8880974d00c0 RBX: 0000000000000000 RCX: 0000000000000001 [ 27.930989] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffff8880b4a4fd98 [ 27.938247] RBP: ffffffff85cce2a0 R08: 0000000000000000 R09: 0000000000040577 [ 27.945489] R10: ffff8880974d09c0 R11: ffff8880974d00c0 R12: 00000000ffffffef [ 27.952737] R13: dffffc0000000000 R14: 00000000ffffffff R15: ffff8880b4a4fd90 [ 27.960004] ? trace_drop_common.constprop.0+0x530/0x530 [ 27.965437] ? trace_drop_common.constprop.0+0x530/0x530 [ 27.970863] ? trace_drop_common.constprop.0+0x530/0x530 [ 27.976289] tracepoint_probe_register+0x8c/0xc0 [ 27.981027] ? for_each_kernel_tracepoint+0x80/0x80 [ 27.986020] ? trace_drop_common.constprop.0+0x530/0x530 [ 27.991449] net_dm_cmd_trace+0x275/0x3a0 [ 27.995575] genl_family_rcv_msg+0x572/0xb20 [ 27.999960] ? __lock_acquire+0x5fc/0x3f20 [ 28.004169] ? genl_rcv+0x40/0x40 [ 28.007612] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 28.013048] ? __kmalloc_node_track_caller+0x4c/0x70 [ 28.018136] ? trace_hardirqs_on+0x10/0x10 [ 28.022369] genl_rcv_msg+0xaf/0x140 [ 28.026060] netlink_rcv_skb+0x125/0x390 [ 28.030152] ? genl_family_rcv_msg+0xb20/0xb20 [ 28.034715] ? netlink_ack+0x9a0/0x9a0 [ 28.038585] ? lock_acquire+0x170/0x3f0 [ 28.042539] genl_rcv+0x24/0x40 [ 28.045793] netlink_unicast+0x437/0x610 [ 28.049827] ? netlink_sendskb+0xd0/0xd0 [ 28.053862] ? __check_object_size+0x179/0x230 [ 28.058421] netlink_sendmsg+0x648/0xbc0 [ 28.062467] ? nlmsg_notify+0x1b0/0x1b0 [ 28.066417] ? kernel_recvmsg+0x210/0x210 [ 28.070552] ? security_socket_sendmsg+0x83/0xb0 [ 28.075282] ? nlmsg_notify+0x1b0/0x1b0 [ 28.079229] sock_sendmsg+0xb5/0x100 [ 28.082915] ___sys_sendmsg+0x6c8/0x800 [ 28.086862] ? get_pid_task+0x91/0x130 [ 28.090720] ? copy_msghdr_from_user+0x3b0/0x3b0 [ 28.095462] ? lock_downgrade+0x740/0x740 [ 28.099589] ? proc_fail_nth_write+0x7b/0x180 [ 28.104066] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 28.108980] ? _raw_spin_unlock+0x29/0x40 [ 28.113102] ? do_fault_around+0x35e/0x620 [ 28.117313] ? fsnotify+0x974/0x11b0 [ 28.121001] ? proc_tgid_io_accounting+0x7a0/0x7a0 [ 28.125900] ? __handle_mm_fault+0x80f/0x4620 [ 28.130370] ? vfs_write+0x35d/0x4d0 [ 28.134057] ? __fdget+0x167/0x1f0 [ 28.137572] ? sockfd_lookup_light+0xb2/0x160 [ 28.142040] __sys_sendmsg+0xa3/0x120 [ 28.145825] ? SyS_shutdown+0x160/0x160 [ 28.149776] ? SyS_read+0x210/0x210 [ 28.153378] ? __do_page_fault+0x159/0xad0 [ 28.157583] SyS_sendmsg+0x27/0x40 [ 28.161097] ? __sys_sendmsg+0x120/0x120 [ 28.165140] do_syscall_64+0x1d5/0x640 [ 28.169006] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 28.174169] RIP: 0033:0x7f59046e5b09 [ 28.177851] RSP: 002b:00007ffdb781ebf8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 28.185543] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f59046e5b09 [ 28.192785] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 28.200028] RBP: 00007ffdb781ec10 R08: 0000000000000001 R09: 0000000000000001 [ 28.207271] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 28.214514] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 28.222069] Kernel Offset: disabled [ 28.225723] Rebooting in 86400 seconds..