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 '10.128.0.27' (ECDSA) to the list of known hosts. net.ipv6.conf.syz_tun.accept_dad = 0 net.ipv6.conf.syz_tun.router_solicitations = 0 syzkaller login: [ 25.827666] IPVS: ftp: loaded support on port[0] = 21 RTNETLINK answers: File exists RTNETLINK answers: Operation not supported RTNETLINK answers: No buffer space available RTNETLINK answers: Operation not supported [ 26.079794] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument [ 26.434968] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 26.441076] 8021q: adding VLAN 0 to HW filter on device bond0 executing program [ 26.478536] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 26.516838] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 26.532412] FAULT_INJECTION: forcing a failure. [ 26.532412] name failslab, interval 1, probability 0, space 0, times 1 [ 26.543702] CPU: 0 PID: 4468 Comm: syzkaller371267 Not tainted 4.16.0+ #2 [ 26.550612] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.559947] Call Trace: [ 26.562518] dump_stack+0x1b9/0x29f [ 26.566130] ? arch_local_irq_restore+0x52/0x52 [ 26.570789] should_fail.cold.4+0xa/0x1a [ 26.574833] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 26.579399] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 26.584489] ? trace_hardirqs_off+0xd/0x10 [ 26.588705] ? graph_lock+0x170/0x170 [ 26.592488] ? depot_save_stack+0x26b/0x450 [ 26.596798] ? find_held_lock+0x36/0x1c0 [ 26.600846] ? __lock_is_held+0xb5/0x140 [ 26.604904] ? check_same_owner+0x320/0x320 [ 26.609205] ? do_raw_spin_lock+0xc1/0x200 [ 26.613425] ? rcu_note_context_switch+0x710/0x710 [ 26.618338] ? trace_hardirqs_off+0xd/0x10 [ 26.622556] ? _raw_spin_unlock_irqrestore+0x63/0xc0 [ 26.627650] should_failslab+0x124/0x180 [ 26.631693] __kmalloc+0x2c8/0x760 [ 26.635218] ? mark_held_locks+0xc9/0x160 [ 26.639347] ? quarantine_put+0xeb/0x190 [ 26.643392] ? constrain_params_by_rules+0x141/0x1360 [ 26.648569] constrain_params_by_rules+0x141/0x1360 [ 26.653570] ? trace_hardirqs_on+0xd/0x10 [ 26.657712] ? check_memory_region+0x180/0x1b0 [ 26.662274] ? snd_pcm_mmap_control_fault+0x3e0/0x3e0 [ 26.667450] ? snd_pcm_mmap_control_fault+0x3e0/0x3e0 [ 26.672621] ? perf_trace_run_bpf_submit+0x23f/0x370 [ 26.677705] ? perf_trace_run_bpf_submit+0x23f/0x370 [ 26.682789] ? perf_trace_run_bpf_submit+0x246/0x370 [ 26.687876] ? perf_tp_event+0xc30/0xc30 [ 26.691925] ? memset+0x31/0x40 [ 26.695192] ? perf_trace_lock+0x495/0x900 [ 26.699417] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 26.704937] ? snd_interval_refine+0x428/0x700 [ 26.709503] snd_pcm_hw_refine+0x8e9/0x1180 [ 26.713806] ? snd_interval_refine+0x428/0x700 [ 26.718380] ? constrain_params_by_rules+0x1360/0x1360 [ 26.723645] ? constrain_params_by_rules+0x1360/0x1360 [ 26.728905] ? find_held_lock+0x36/0x1c0 [ 26.732951] ? print_usage_bug+0xc0/0xc0 [ 26.736999] ? graph_lock+0x170/0x170 [ 26.740787] ? lock_downgrade+0x8e0/0x8e0 [ 26.744916] ? lock_release+0xa10/0xa10 [ 26.748874] ? kasan_check_read+0x11/0x20 [ 26.753018] ? __lock_is_held+0xb5/0x140 [ 26.757074] snd_pcm_hw_param_first+0x30e/0x680 [ 26.761732] snd_pcm_hw_params+0x340/0x1e20 [ 26.766048] ? snd_pcm_hw_refine+0x1180/0x1180 [ 26.770620] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 26.775618] ? snd_pcm_hw_param_value+0x112/0x550 [ 26.780446] ? snd_pcm_hw_param_last+0x300/0x660 [ 26.785190] ? snd_pcm_hw_param_near.constprop.35+0x6e9/0xb10 [ 26.791063] ? _snd_pcm_hw_param_min+0x570/0x570 [ 26.795804] ? snd_pcm_hw_param_max+0x730/0x730 [ 26.800455] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 26.805629] snd_pcm_kernel_ioctl+0x6c/0x240 [ 26.810033] snd_pcm_oss_change_params_locked+0x1be8/0x3ce0 [ 26.815751] ? snd_pcm_hw_param_near.constprop.35+0xb10/0xb10 [ 26.821623] ? find_held_lock+0x36/0x1c0 [ 26.825665] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 26.831194] ? perf_trace_run_bpf_submit+0x23f/0x370 [ 26.836276] ? perf_trace_run_bpf_submit+0x23f/0x370 [ 26.841359] ? perf_trace_run_bpf_submit+0x246/0x370 [ 26.846445] ? perf_tp_event+0xc30/0xc30 [ 26.850495] ? find_held_lock+0x36/0x1c0 [ 26.854541] ? memset+0x31/0x40 [ 26.857807] ? perf_trace_lock+0x495/0x900 [ 26.862047] snd_pcm_oss_make_ready_locked+0xbc/0x130 [ 26.867223] snd_pcm_oss_write+0x516/0xa20 [ 26.871441] ? graph_lock+0x170/0x170 [ 26.875228] ? snd_pcm_oss_ioctl_compat+0x30/0x30 [ 26.880051] ? kasan_check_read+0x11/0x20 [ 26.884180] ? do_raw_spin_unlock+0x9e/0x2e0 [ 26.888581] __vfs_write+0x10b/0x880 [ 26.892275] ? __fget_light+0x2ef/0x430 [ 26.896619] ? snd_pcm_oss_ioctl_compat+0x30/0x30 [ 26.901449] ? kernel_read+0x120/0x120 [ 26.905319] ? lock_downgrade+0x8e0/0x8e0 [ 26.909463] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 26.914981] ? security_file_permission+0x9f/0x250 [ 26.919899] ? rw_verify_area+0x118/0x360 [ 26.924044] vfs_write+0x1f8/0x560 [ 26.927572] ksys_write+0xf9/0x250 [ 26.931102] ? SyS_read+0x30/0x30 [ 26.934540] ? syscall_slow_exit_work+0x4f0/0x4f0 [ 26.939370] SyS_write+0x24/0x30 [ 26.942720] ? ksys_write+0x250/0x250 [ 26.946502] do_syscall_64+0x29e/0x9d0 [ 26.950373] ? vmalloc_sync_all+0x30/0x30 [ 26.954504] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 26.959245] ? syscall_return_slowpath+0x5c0/0x5c0 [ 26.964159] ? syscall_return_slowpath+0x30f/0x5c0 [ 26.969075] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 26.974425] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 26.979254] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 26.984423] RIP: 0033:0x441939 [ 26.987595] RSP: 002b:00007ffe8c3568e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 26.995464] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441939 [ 27.002713] RDX: 0000000000000001 RSI: 0000000020000180 RDI: 0000000000000003 [ 27.009962] RBP: 00007ffe8c3569b0 R08: 0000000000000002 R09: 0000000000000000 [ 27.017211] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005 [ 27.024461] R13: ffffffffffffffff R14: 0000000000000000 R15: 0000000000000000 [ 27.032502] WARNING: CPU: 0 PID: 4468 at sound/core/pcm_native.c:620 snd_pcm_hw_params+0x65a/0x1e20 [ 27.041703] Kernel panic - not syncing: panic_on_warn set ... [ 27.041703] [ 27.049068] CPU: 0 PID: 4468 Comm: syzkaller371267 Not tainted 4.16.0+ #2 [ 27.055978] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.065312] Call Trace: [ 27.067885] dump_stack+0x1b9/0x29f [ 27.071498] ? arch_local_irq_restore+0x52/0x52 [ 27.076159] ? snd_pcm_hw_params+0x630/0x1e20 [ 27.080636] panic+0x22f/0x4de [ 27.083813] ? add_taint.cold.5+0x16/0x16 [ 27.087954] ? __warn.cold.8+0x148/0x1a3 [ 27.091993] ? __warn.cold.8+0x117/0x1a3 [ 27.096044] ? snd_pcm_hw_params+0x65a/0x1e20 [ 27.100522] __warn.cold.8+0x163/0x1a3 [ 27.104392] ? snd_pcm_hw_params+0x65a/0x1e20 [ 27.108874] report_bug+0x252/0x2d0 [ 27.112488] do_error_trap+0x1bc/0x470 [ 27.116358] ? find_held_lock+0x36/0x1c0 [ 27.120406] ? math_error+0x3f0/0x3f0 [ 27.124192] ? graph_lock+0x170/0x170 [ 27.127973] ? lock_downgrade+0x8e0/0x8e0 [ 27.132111] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 27.136940] do_invalid_op+0x1b/0x20 [ 27.140638] invalid_op+0x1b/0x40 [ 27.144075] RIP: 0010:snd_pcm_hw_params+0x65a/0x1e20 [ 27.149157] RSP: 0018:ffff8801ac66f498 EFLAGS: 00010293 [ 27.154504] RAX: ffff8801acb86580 RBX: 00000000fffffff4 RCX: ffffffff859d7220 [ 27.161755] RDX: 0000000000000000 RSI: ffffffff859d752a RDI: 0000000000000005 [ 27.169010] RBP: ffff8801ac66f6e8 R08: ffff8801acb86580 R09: ffffed003b6046c2 [ 27.176269] R10: ffffed003b6046c2 R11: ffff8801db023613 R12: ffffffff8826309c [ 27.183519] R13: ffff8801ceab6940 R14: ffff8801d9509200 R15: dffffc0000000000 [ 27.190779] ? snd_pcm_hw_params+0x350/0x1e20 [ 27.195254] ? snd_pcm_hw_params+0x65a/0x1e20 [ 27.199734] ? snd_pcm_hw_params+0x65a/0x1e20 [ 27.204216] ? snd_pcm_hw_refine+0x1180/0x1180 [ 27.208787] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 27.213784] ? snd_pcm_hw_param_value+0x112/0x550 [ 27.218615] ? snd_pcm_hw_param_last+0x300/0x660 [ 27.223362] ? snd_pcm_hw_param_near.constprop.35+0x6e9/0xb10 [ 27.229233] ? _snd_pcm_hw_param_min+0x570/0x570 [ 27.233974] ? snd_pcm_hw_param_max+0x730/0x730 [ 27.238626] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 27.243803] snd_pcm_kernel_ioctl+0x6c/0x240 [ 27.248196] snd_pcm_oss_change_params_locked+0x1be8/0x3ce0 [ 27.253903] ? snd_pcm_hw_param_near.constprop.35+0xb10/0xb10 [ 27.259772] ? find_held_lock+0x36/0x1c0 [ 27.263814] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 27.269341] ? perf_trace_run_bpf_submit+0x23f/0x370 [ 27.274423] ? perf_trace_run_bpf_submit+0x23f/0x370 [ 27.279505] ? perf_trace_run_bpf_submit+0x246/0x370 [ 27.284594] ? perf_tp_event+0xc30/0xc30 [ 27.288642] ? find_held_lock+0x36/0x1c0 [ 27.292687] ? memset+0x31/0x40 [ 27.295956] ? perf_trace_lock+0x495/0x900 [ 27.300183] snd_pcm_oss_make_ready_locked+0xbc/0x130 [ 27.305359] snd_pcm_oss_write+0x516/0xa20 [ 27.309580] ? graph_lock+0x170/0x170 [ 27.313367] ? snd_pcm_oss_ioctl_compat+0x30/0x30 [ 27.318190] ? kasan_check_read+0x11/0x20 [ 27.322320] ? do_raw_spin_unlock+0x9e/0x2e0 [ 27.326714] __vfs_write+0x10b/0x880 [ 27.330407] ? __fget_light+0x2ef/0x430 [ 27.334362] ? snd_pcm_oss_ioctl_compat+0x30/0x30 [ 27.339189] ? kernel_read+0x120/0x120 [ 27.343058] ? lock_downgrade+0x8e0/0x8e0 [ 27.347200] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 27.352718] ? security_file_permission+0x9f/0x250 [ 27.357634] ? rw_verify_area+0x118/0x360 [ 27.361767] vfs_write+0x1f8/0x560 [ 27.365294] ksys_write+0xf9/0x250 [ 27.368821] ? SyS_read+0x30/0x30 [ 27.372262] ? syscall_slow_exit_work+0x4f0/0x4f0 [ 27.377089] SyS_write+0x24/0x30 [ 27.380437] ? ksys_write+0x250/0x250 [ 27.384219] do_syscall_64+0x29e/0x9d0 [ 27.388087] ? vmalloc_sync_all+0x30/0x30 [ 27.392217] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 27.396967] ? syscall_return_slowpath+0x5c0/0x5c0 [ 27.401881] ? syscall_return_slowpath+0x30f/0x5c0 [ 27.406796] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 27.412144] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 27.416976] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 27.422145] RIP: 0033:0x441939 [ 27.425314] RSP: 002b:00007ffe8c3568e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 27.433013] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441939 [ 27.440271] RDX: 0000000000000001 RSI: 0000000020000180 RDI: 0000000000000003 [ 27.447524] RBP: 00007ffe8c3569b0 R08: 0000000000000002 R09: 0000000000000000 [ 27.454773] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005 [ 27.462033] R13: ffffffffffffffff R14: 0000000000000000 R15: 0000000000000000 [ 27.469883] Dumping ftrace buffer: [ 27.473498] (ftrace buffer empty) [ 27.477190] Kernel Offset: disabled [ 27.480806] Rebooting in 86400 seconds..