[....] Starting enhanced syslogd: rsyslogd[ 12.333104] audit: type=1400 audit(1514792188.526:5): avc: denied { syslog } for pid=3341 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 18.368178] audit: type=1400 audit(1514792194.561:6): avc: denied { map } for pid=3481 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.0.22' (ECDSA) to the list of known hosts. [ 142.630380] audit: type=1400 audit(1514792318.824:7): avc: denied { map } for pid=3499 comm="syz-execprog" path="/root/syz-execprog" dev="sda1" ino=16479 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 2018/01/01 07:38:38 parsed 1 programs 2018/01/01 07:38:38 executed programs: 0 [ 142.756404] audit: type=1400 audit(1514792318.950:8): avc: denied { map } for pid=3499 comm="syz-execprog" path="/root/syzkaller-shm429405758" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1 [ 147.681566] WARNING: CPU: 0 PID: 5264 at sound/core/pcm_lib.c:1635 snd_pcm_hw_param_first+0x289/0x690 [ 147.690993] Kernel panic - not syncing: panic_on_warn set ... [ 147.690993] [ 147.698346] CPU: 0 PID: 5264 Comm: syz-executor2 Not tainted 4.15.0-rc6+ #245 [ 147.705599] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 147.714928] Call Trace: [ 147.717496] dump_stack+0x194/0x257 [ 147.721113] ? arch_local_irq_restore+0x53/0x53 [ 147.725779] ? vsnprintf+0x1ed/0x1900 [ 147.729587] panic+0x1e4/0x41c [ 147.732773] ? refcount_error_report+0x214/0x214 [ 147.737512] ? show_regs_print_info+0x18/0x18 [ 147.742016] ? __warn+0x1c1/0x200 [ 147.745466] ? snd_pcm_hw_param_first+0x289/0x690 [ 147.750296] __warn+0x1dc/0x200 [ 147.753568] ? snd_pcm_hw_param_first+0x289/0x690 [ 147.758413] report_bug+0x211/0x2d0 [ 147.762052] fixup_bug.part.11+0x37/0x80 [ 147.766110] do_error_trap+0x2d7/0x3e0 [ 147.769981] ? snd_pcm_oss_release+0x20b/0x280 [ 147.774539] ? __fput+0x327/0x7e0 [ 147.777972] ? ____fput+0x15/0x20 [ 147.781402] ? math_error+0x400/0x400 [ 147.785174] ? exit_to_usermode_loop+0x214/0x310 [ 147.789910] ? syscall_return_slowpath+0x490/0x550 [ 147.794826] ? entry_SYSCALL_64_fastpath+0x98/0x9a [ 147.799749] ? check_noncircular+0x20/0x20 [ 147.803980] ? print_irqtrace_events+0x270/0x270 [ 147.808897] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 147.813715] do_invalid_op+0x1b/0x20 [ 147.817401] invalid_op+0x22/0x40 [ 147.820822] RIP: 0010:snd_pcm_hw_param_first+0x289/0x690 [ 147.826237] RSP: 0018:ffff8801d6706e00 EFLAGS: 00010293 [ 147.831569] RAX: ffff8801bcb06340 RBX: ffff8801d969c000 RCX: ffffffff841beea9 [ 147.838805] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: ffffed003ace0db8 [ 147.846047] RBP: ffff8801d6706e50 R08: ffffed003ace0cef R09: ffff8801d6706770 [ 147.853292] R10: 0000000000000001 R11: ffffed003ace0cee R12: 000000000000000d [ 147.860537] R13: 00000000ffffffea R14: 0000000000000005 R15: 0000000000002000 [ 147.867793] ? snd_pcm_hw_param_first+0x289/0x690 [ 147.872620] snd_pcm_hw_param_near.constprop.27+0x78d/0x9a0 [ 147.878330] ? _snd_pcm_hw_param_set.constprop.26+0x6f0/0x6f0 [ 147.884188] ? snd_pcm_plugin_free+0xb1/0xe0 [ 147.888569] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 147.893555] ? trace_hardirqs_on+0xd/0x10 [ 147.897676] ? snd_pcm_plug_slave_size+0x148/0x2c0 [ 147.902577] snd_pcm_oss_change_params+0x17d3/0x3720 [ 147.907665] ? snd_pcm_hw_param_near.constprop.27+0x9a0/0x9a0 [ 147.913528] ? rcu_segcblist_first_pend_cb+0x90/0x90 [ 147.918603] ? __call_rcu.constprop.67+0x4a5/0xef0 [ 147.923503] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 147.928492] ? find_held_lock+0x35/0x1d0 [ 147.932537] ? mntput_no_expire+0x130/0xa90 [ 147.936828] ? lock_downgrade+0x980/0x980 [ 147.940956] ? lock_release+0xa40/0xa40 [ 147.944925] snd_pcm_oss_make_ready+0xaa/0x130 [ 147.949481] snd_pcm_oss_sync+0x257/0x830 [ 147.953603] ? snd_pcm_oss_sync1+0x550/0x550 [ 147.957982] ? fsnotify_first_mark+0x2b0/0x2b0 [ 147.962538] snd_pcm_oss_release+0x20b/0x280 [ 147.966926] ? snd_pcm_oss_sync+0x830/0x830 [ 147.971229] __fput+0x327/0x7e0 [ 147.974498] ? fput+0x140/0x140 [ 147.977749] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 147.983602] ? _raw_spin_unlock_irq+0x27/0x70 [ 147.988071] ____fput+0x15/0x20 [ 147.991321] task_work_run+0x199/0x270 [ 147.995185] ? task_work_cancel+0x210/0x210 [ 147.999475] ? _raw_spin_unlock+0x22/0x30 [ 148.003598] ? switch_task_namespaces+0x87/0xc0 [ 148.008242] do_exit+0x9bb/0x1ad0 [ 148.011669] ? mm_update_next_owner+0x930/0x930 [ 148.016308] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 148.021474] ? __might_sleep+0x95/0x190 [ 148.025421] ? find_held_lock+0x35/0x1d0 [ 148.029460] ? futex_wait+0x402/0x9a0 [ 148.033228] ? lock_downgrade+0x980/0x980 [ 148.037344] ? __unqueue_futex+0x1c0/0x290 [ 148.041544] ? lock_release+0xa40/0xa40 [ 148.045485] ? fault_in_user_writeable+0x90/0x90 [ 148.050213] ? do_raw_spin_trylock+0x190/0x190 [ 148.054771] ? futex_wake+0x680/0x680 [ 148.058542] ? check_noncircular+0x20/0x20 [ 148.062753] ? drop_futex_key_refs.isra.12+0x63/0xb0 [ 148.067824] ? futex_wait+0x6a9/0x9a0 [ 148.071628] ? find_held_lock+0x35/0x1d0 [ 148.075674] ? get_signal+0x7ae/0x16c0 [ 148.079529] ? lock_downgrade+0x980/0x980 [ 148.083656] do_group_exit+0x149/0x400 [ 148.087511] ? do_raw_spin_trylock+0x190/0x190 [ 148.092064] ? SyS_exit+0x30/0x30 [ 148.095486] ? _raw_spin_unlock_irq+0x27/0x70 [ 148.099950] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 148.104946] get_signal+0x73f/0x16c0 [ 148.108637] ? ptrace_notify+0x130/0x130 [ 148.112673] ? exit_robust_list+0x240/0x240 [ 148.116962] ? avc_has_extended_perms+0x7fa/0x12c0 [ 148.121859] ? find_held_lock+0x35/0x1d0 [ 148.125896] ? avc_ss_reset+0x110/0x110 [ 148.129836] ? lock_downgrade+0x980/0x980 [ 148.133958] do_signal+0x90/0x1eb0 [ 148.137468] ? __lock_is_held+0xb6/0x140 [ 148.141502] ? setup_sigcontext+0x7d0/0x7d0 [ 148.145814] ? rcu_note_context_switch+0x710/0x710 [ 148.150719] ? exit_to_usermode_loop+0x8c/0x310 [ 148.155361] exit_to_usermode_loop+0x214/0x310 [ 148.159911] ? ioctl_preallocate+0x2b0/0x2b0 [ 148.164291] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 148.169796] ? selinux_capable+0x40/0x40 [ 148.173839] syscall_return_slowpath+0x490/0x550 [ 148.178564] ? prepare_exit_to_usermode+0x340/0x340 [ 148.183549] ? entry_SYSCALL_64_fastpath+0x6d/0x9a [ 148.188448] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 148.193431] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 148.198163] entry_SYSCALL_64_fastpath+0x98/0x9a [ 148.202892] RIP: 0033:0x452ac9 [ 148.206050] RSP: 002b:00007f933a8a3ce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 148.213723] RAX: fffffffffffffe00 RBX: 000000000071c038 RCX: 0000000000452ac9 [ 148.220959] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000071c038 [ 148.228194] RBP: 000000000071c038 R08: 0000000000000000 R09: 000000000071c010 [ 148.235429] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 148.242665] R13: 00007fffd019bb9f R14: 00007f933a8a49c0 R15: 0000000000000002 [ 148.250563] Dumping ftrace buffer: [ 148.254142] (ftrace buffer empty) [ 148.257821] Kernel Offset: disabled [ 148.261417] Rebooting in 86400 seconds..