INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.61' (ECDSA) to the list of known hosts. 2018/04/05 22:20:47 parsed 1 programs 2018/04/05 22:20:47 executed programs: 0 syzkaller login: [ 30.484271] IPVS: ftp: loaded support on port[0] = 21 [ 30.541753] FAULT_INJECTION: forcing a failure. [ 30.541753] name failslab, interval 1, probability 0, space 0, times 1 [ 30.553170] CPU: 1 PID: 4480 Comm: syz-executor0 Not tainted 4.16.0+ #2 [ 30.559906] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.569235] Call Trace: [ 30.571804] dump_stack+0x1b9/0x29f [ 30.575410] ? arch_local_irq_restore+0x52/0x52 [ 30.580062] should_fail.cold.4+0xa/0x1a [ 30.584102] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 30.588663] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 30.593746] ? trace_hardirqs_off+0xd/0x10 [ 30.597955] ? graph_lock+0x170/0x170 [ 30.601732] ? depot_save_stack+0x26b/0x450 [ 30.606034] ? find_held_lock+0x36/0x1c0 [ 30.610079] ? __lock_is_held+0xb5/0x140 [ 30.614134] ? check_same_owner+0x320/0x320 [ 30.618431] ? do_raw_spin_lock+0xc1/0x200 [ 30.622823] ? rcu_note_context_switch+0x710/0x710 [ 30.627729] ? trace_hardirqs_off+0xd/0x10 [ 30.631941] ? _raw_spin_unlock_irqrestore+0x63/0xc0 [ 30.637023] should_failslab+0x124/0x180 [ 30.641064] __kmalloc+0x2c8/0x760 [ 30.644582] ? mark_held_locks+0xc9/0x160 [ 30.648708] ? quarantine_put+0xeb/0x190 [ 30.652746] ? constrain_params_by_rules+0x141/0x1360 [ 30.657926] constrain_params_by_rules+0x141/0x1360 [ 30.662922] ? trace_hardirqs_on+0xd/0x10 [ 30.667056] ? check_memory_region+0x180/0x1b0 [ 30.671620] ? snd_pcm_mmap_control_fault+0x3e0/0x3e0 [ 30.676792] ? snd_pcm_mmap_control_fault+0x3e0/0x3e0 [ 30.681978] ? debug_check_no_locks_freed+0x310/0x310 [ 30.687154] ? graph_lock+0x170/0x170 [ 30.690939] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 30.696453] ? snd_interval_refine+0x428/0x700 [ 30.701145] snd_pcm_hw_refine+0x8e9/0x1180 [ 30.705446] ? snd_interval_refine+0x428/0x700 [ 30.710018] ? constrain_params_by_rules+0x1360/0x1360 [ 30.715362] ? constrain_params_by_rules+0x1360/0x1360 [ 30.720628] ? find_held_lock+0x36/0x1c0 [ 30.724668] ? print_usage_bug+0xc0/0xc0 [ 30.728707] ? graph_lock+0x170/0x170 [ 30.732483] ? lock_downgrade+0x8e0/0x8e0 [ 30.736620] ? lock_release+0xa10/0xa10 [ 30.740588] ? kasan_check_read+0x11/0x20 [ 30.744726] ? __lock_is_held+0xb5/0x140 [ 30.748767] snd_pcm_hw_param_first+0x30e/0x680 [ 30.753413] snd_pcm_hw_params+0x340/0x1e20 [ 30.757723] ? snd_pcm_hw_refine+0x1180/0x1180 [ 30.762308] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 30.767329] ? snd_pcm_hw_param_value+0x112/0x550 [ 30.772182] ? snd_pcm_hw_param_first+0x2eb/0x680 [ 30.777025] ? snd_pcm_hw_param_near.constprop.35+0x6e9/0xb10 [ 30.782901] ? _snd_pcm_hw_param_min+0x570/0x570 [ 30.787646] ? snd_pcm_hw_param_max+0x730/0x730 [ 30.792301] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 30.797471] snd_pcm_kernel_ioctl+0x6c/0x240 [ 30.801861] snd_pcm_oss_change_params_locked+0x1be8/0x3ce0 [ 30.807562] ? snd_pcm_hw_param_near.constprop.35+0xb10/0xb10 [ 30.813429] ? lock_downgrade+0x8e0/0x8e0 [ 30.817563] ? debug_check_no_locks_freed+0x310/0x310 [ 30.822737] ? lock_downgrade+0x8e0/0x8e0 [ 30.826882] ? __mutex_unlock_slowpath+0x180/0x8a0 [ 30.831809] ? wait_for_completion+0x870/0x870 [ 30.836381] ? debug_check_no_locks_freed+0x310/0x310 [ 30.841559] ? find_held_lock+0x36/0x1c0 [ 30.845613] snd_pcm_oss_change_params+0x80/0xe0 [ 30.850349] snd_pcm_oss_get_active_substream.part.27+0x136/0x190 [ 30.856559] snd_pcm_oss_set_channels+0x1f6/0x340 [ 30.861381] ? snd_pcm_oss_get_active_substream.part.27+0x190/0x190 [ 30.867774] ? __might_sleep+0x95/0x190 [ 30.871730] snd_pcm_oss_ioctl+0x226c/0x3f00 [ 30.876117] ? _parse_integer+0x190/0x190 [ 30.880273] ? graph_lock+0x170/0x170 [ 30.884071] ? snd_pcm_oss_release+0x290/0x290 [ 30.888634] ? find_held_lock+0x36/0x1c0 [ 30.892676] ? lock_downgrade+0x8e0/0x8e0 [ 30.896807] ? kasan_check_read+0x11/0x20 [ 30.900934] ? rcu_is_watching+0x85/0x140 [ 30.905060] ? pid_task+0x10e/0x1e0 [ 30.908680] ? rcu_bh_force_quiescent_state+0x20/0x20 [ 30.914551] ? graph_lock+0x170/0x170 [ 30.918472] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 30.924005] ? proc_fail_nth_write+0x96/0x1f0 [ 30.928478] ? proc_cwd_link+0x1d0/0x1d0 [ 30.932525] ? find_held_lock+0x36/0x1c0 [ 30.936571] ? lock_downgrade+0x8e0/0x8e0 [ 30.940698] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 30.945872] ? snd_pcm_oss_release+0x290/0x290 [ 30.950433] do_vfs_ioctl+0x1cf/0x1650 [ 30.954303] ? ioctl_preallocate+0x2e0/0x2e0 [ 30.958696] ? fget_raw+0x20/0x20 [ 30.962131] ? __sb_end_write+0xac/0xe0 [ 30.966087] ? ksys_write+0x1a6/0x250 [ 30.969871] ? security_file_ioctl+0x9b/0xd0 [ 30.974256] ksys_ioctl+0xa9/0xd0 [ 30.977708] SyS_ioctl+0x24/0x30 [ 30.981061] ? ksys_ioctl+0xd0/0xd0 [ 30.984672] do_syscall_64+0x29e/0x9d0 [ 30.988541] ? vmalloc_sync_all+0x30/0x30 [ 30.992674] ? syscall_return_slowpath+0x5c0/0x5c0 [ 30.997587] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 31.002939] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 31.007766] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 31.012938] RIP: 0033:0x4552d9 [ 31.016112] RSP: 002b:0000000000a3e8e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 31.023814] RAX: ffffffffffffffda RBX: 00000000019e0914 RCX: 00000000004552d9 [ 31.031062] RDX: 0000000020000000 RSI: 00800000c0045006 RDI: 0000000000000004 [ 31.038310] RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 [ 31.045847] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005 [ 31.053103] R13: 000000000000035e R14: 00000000006f8170 R15: 0000000000000012 [ 31.060888] WARNING: CPU: 1 PID: 4480 at sound/core/pcm_native.c:620 snd_pcm_hw_params+0x65a/0x1e20 [ 31.070080] Kernel panic - not syncing: panic_on_warn set ... [ 31.070080] [ 31.077426] CPU: 1 PID: 4480 Comm: syz-executor0 Not tainted 4.16.0+ #2 [ 31.084161] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.093505] Call Trace: [ 31.096094] dump_stack+0x1b9/0x29f [ 31.099715] ? arch_local_irq_restore+0x52/0x52 [ 31.104368] ? snd_pcm_hw_params+0x5a0/0x1e20 [ 31.108839] panic+0x22f/0x4de [ 31.112007] ? add_taint.cold.5+0x16/0x16 [ 31.116132] ? __warn.cold.8+0x148/0x1a3 [ 31.120174] ? __warn.cold.8+0x117/0x1a3 [ 31.124213] ? snd_pcm_hw_params+0x65a/0x1e20 [ 31.128686] __warn.cold.8+0x163/0x1a3 [ 31.132551] ? snd_pcm_hw_params+0x65a/0x1e20 [ 31.137025] report_bug+0x252/0x2d0 [ 31.140637] do_error_trap+0x1bc/0x470 [ 31.144505] ? find_held_lock+0x36/0x1c0 [ 31.148544] ? math_error+0x3f0/0x3f0 [ 31.152321] ? graph_lock+0x170/0x170 [ 31.156095] ? lock_downgrade+0x8e0/0x8e0 [ 31.160220] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 31.165039] do_invalid_op+0x1b/0x20 [ 31.168727] invalid_op+0x1b/0x40 [ 31.172154] RIP: 0010:snd_pcm_hw_params+0x65a/0x1e20 [ 31.177228] RSP: 0018:ffff8801ac6771d8 EFLAGS: 00010293 [ 31.182570] RAX: ffff8801acac4140 RBX: 00000000fffffff4 RCX: ffffffff859d60b0 [ 31.189816] RDX: 0000000000000000 RSI: ffffffff859d63ba RDI: 0000000000000005 [ 31.197062] RBP: ffff8801ac677428 R08: ffff8801acac4140 R09: ffffed003b6246c2 [ 31.204307] R10: ffffed003b6246c2 R11: ffff8801db123613 R12: ffffffff88262f9c [ 31.211552] R13: ffff8801cebca4c0 R14: ffff8801acbb7200 R15: dffffc0000000000 [ 31.218813] ? snd_pcm_hw_params+0x350/0x1e20 [ 31.223286] ? snd_pcm_hw_params+0x65a/0x1e20 [ 31.227758] ? snd_pcm_hw_params+0x65a/0x1e20 [ 31.232231] ? snd_pcm_hw_refine+0x1180/0x1180 [ 31.236794] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 31.241788] ? snd_pcm_hw_param_value+0x112/0x550 [ 31.246610] ? snd_pcm_hw_param_first+0x2eb/0x680 [ 31.251441] ? snd_pcm_hw_param_near.constprop.35+0x6e9/0xb10 [ 31.257305] ? _snd_pcm_hw_param_min+0x570/0x570 [ 31.262046] ? snd_pcm_hw_param_max+0x730/0x730 [ 31.266690] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 31.271859] snd_pcm_kernel_ioctl+0x6c/0x240 [ 31.276246] snd_pcm_oss_change_params_locked+0x1be8/0x3ce0 [ 31.281939] ? snd_pcm_hw_param_near.constprop.35+0xb10/0xb10 [ 31.287802] ? lock_downgrade+0x8e0/0x8e0 [ 31.291927] ? debug_check_no_locks_freed+0x310/0x310 [ 31.297095] ? lock_downgrade+0x8e0/0x8e0 [ 31.301222] ? __mutex_unlock_slowpath+0x180/0x8a0 [ 31.306136] ? wait_for_completion+0x870/0x870 [ 31.310693] ? debug_check_no_locks_freed+0x310/0x310 [ 31.315868] ? find_held_lock+0x36/0x1c0 [ 31.319912] snd_pcm_oss_change_params+0x80/0xe0 [ 31.324827] snd_pcm_oss_get_active_substream.part.27+0x136/0x190 [ 31.331041] snd_pcm_oss_set_channels+0x1f6/0x340 [ 31.335862] ? snd_pcm_oss_get_active_substream.part.27+0x190/0x190 [ 31.342257] ? __might_sleep+0x95/0x190 [ 31.346213] snd_pcm_oss_ioctl+0x226c/0x3f00 [ 31.350599] ? _parse_integer+0x190/0x190 [ 31.354731] ? graph_lock+0x170/0x170 [ 31.358515] ? snd_pcm_oss_release+0x290/0x290 [ 31.363079] ? find_held_lock+0x36/0x1c0 [ 31.367120] ? lock_downgrade+0x8e0/0x8e0 [ 31.371256] ? kasan_check_read+0x11/0x20 [ 31.375382] ? rcu_is_watching+0x85/0x140 [ 31.379508] ? pid_task+0x10e/0x1e0 [ 31.383112] ? rcu_bh_force_quiescent_state+0x20/0x20 [ 31.388281] ? graph_lock+0x170/0x170 [ 31.392061] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 31.397576] ? proc_fail_nth_write+0x96/0x1f0 [ 31.402057] ? proc_cwd_link+0x1d0/0x1d0 [ 31.406102] ? find_held_lock+0x36/0x1c0 [ 31.410143] ? lock_downgrade+0x8e0/0x8e0 [ 31.414272] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 31.419441] ? snd_pcm_oss_release+0x290/0x290 [ 31.424016] do_vfs_ioctl+0x1cf/0x1650 [ 31.427892] ? ioctl_preallocate+0x2e0/0x2e0 [ 31.432280] ? fget_raw+0x20/0x20 [ 31.435715] ? __sb_end_write+0xac/0xe0 [ 31.439669] ? ksys_write+0x1a6/0x250 [ 31.443449] ? security_file_ioctl+0x9b/0xd0 [ 31.447833] ksys_ioctl+0xa9/0xd0 [ 31.451267] SyS_ioctl+0x24/0x30 [ 31.454607] ? ksys_ioctl+0xd0/0xd0 [ 31.458222] do_syscall_64+0x29e/0x9d0 [ 31.462093] ? vmalloc_sync_all+0x30/0x30 [ 31.466220] ? syscall_return_slowpath+0x5c0/0x5c0 [ 31.471130] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 31.476476] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 31.481302] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 31.486467] RIP: 0033:0x4552d9 [ 31.489634] RSP: 002b:0000000000a3e8e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 31.497321] RAX: ffffffffffffffda RBX: 00000000019e0914 RCX: 00000000004552d9 [ 31.504570] RDX: 0000000020000000 RSI: 00800000c0045006 RDI: 0000000000000004 [ 31.511819] RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 [ 31.519066] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005 [ 31.526311] R13: 000000000000035e R14: 00000000006f8170 R15: 0000000000000012 [ 31.534100] Dumping ftrace buffer: [ 31.537715] (ftrace buffer empty) [ 31.541401] Kernel Offset: disabled [ 31.545008] Rebooting in 86400 seconds..