[....] Starting enhanced syslogd: rsyslogd[ 12.006483] audit: type=1400 audit(1514754894.518:5): avc: denied { syslog } for pid=3344 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: [ 16.844762] audit: type=1400 audit(1514754899.356:6): avc: denied { map } for pid=3482 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 '10.128.0.61' (ECDSA) to the list of known hosts. executing program [ 38.464759] audit: type=1400 audit(1514754920.976:7): avc: denied { map } for pid=3500 comm="syzkaller098294" path="/root/syzkaller098294779" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 39.009399] WARNING: CPU: 1 PID: 3500 at sound/core/pcm_lib.c:1635 snd_pcm_hw_param_first+0x289/0x690 [ 39.018797] Kernel panic - not syncing: panic_on_warn set ... [ 39.018797] [ 39.026140] CPU: 1 PID: 3500 Comm: syzkaller098294 Not tainted 4.15.0-rc5+ #244 [ 39.033554] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.042876] Call Trace: [ 39.045437] dump_stack+0x194/0x257 [ 39.049035] ? arch_local_irq_restore+0x53/0x53 [ 39.053673] ? vsnprintf+0x1ed/0x1900 [ 39.057462] panic+0x1e4/0x41c [ 39.060645] ? refcount_error_report+0x214/0x214 [ 39.065385] ? show_regs_print_info+0x18/0x18 [ 39.069864] ? __warn+0x1c1/0x200 [ 39.073292] ? snd_pcm_hw_param_first+0x289/0x690 [ 39.078112] __warn+0x1dc/0x200 [ 39.081357] ? snd_pcm_hw_param_first+0x289/0x690 [ 39.086169] report_bug+0x211/0x2d0 [ 39.089770] fixup_bug.part.11+0x37/0x80 [ 39.093807] do_error_trap+0x2d7/0x3e0 [ 39.097671] ? snd_pcm_oss_sync+0x257/0x830 [ 39.101973] ? snd_pcm_oss_release+0x20b/0x280 [ 39.106529] ? __fput+0x327/0x7e0 [ 39.109977] ? math_error+0x400/0x400 [ 39.113756] ? entry_SYSCALL_64_fastpath+0x23/0x9a [ 39.118674] ? check_noncircular+0x20/0x20 [ 39.122888] ? print_irqtrace_events+0x270/0x270 [ 39.127621] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.132438] do_invalid_op+0x1b/0x20 [ 39.136120] invalid_op+0x22/0x40 [ 39.139541] RIP: 0010:snd_pcm_hw_param_first+0x289/0x690 [ 39.144965] RSP: 0018:ffff8801bf297338 EFLAGS: 00010293 [ 39.150313] RAX: ffff8801bee8a3c0 RBX: ffff8801beea8040 RCX: ffffffff841bee19 [ 39.157568] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: ffffed0037e52e60 [ 39.164820] RBP: ffff8801bf297388 R08: ffffed0037e52d96 R09: ffff8801bf296ca8 [ 39.172076] R10: 0000000000000001 R11: ffffed0037e52d95 R12: 000000000000000d [ 39.179339] R13: 00000000ffffffea R14: 0000000000000005 R15: 0000000000002000 [ 39.186606] ? snd_pcm_hw_param_first+0x289/0x690 [ 39.191426] ? snd_pcm_hw_param_first+0x289/0x690 [ 39.196258] snd_pcm_hw_param_near.constprop.27+0x78d/0x9a0 [ 39.201980] ? _snd_pcm_hw_param_set.constprop.26+0x6f0/0x6f0 [ 39.207862] ? snd_pcm_plugin_free+0xb1/0xe0 [ 39.212245] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 39.217227] ? trace_hardirqs_on+0xd/0x10 [ 39.221345] ? snd_pcm_plug_slave_size+0x148/0x2c0 [ 39.226252] snd_pcm_oss_change_params+0x17d3/0x3720 [ 39.231341] ? snd_pcm_hw_param_near.constprop.27+0x9a0/0x9a0 [ 39.237221] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 39.242390] ? rcutorture_record_progress+0x10/0x10 [ 39.247392] ? is_bpf_text_address+0xa4/0x120 [ 39.251866] ? kernel_text_address+0x102/0x140 [ 39.256426] ? __kernel_text_address+0xd/0x40 [ 39.260888] ? unwind_get_return_address+0x61/0xa0 [ 39.265788] ? check_noncircular+0x20/0x20 [ 39.270003] snd_pcm_oss_make_ready+0xaa/0x130 [ 39.274563] snd_pcm_oss_sync+0x257/0x830 [ 39.278700] ? snd_pcm_oss_sync1+0x550/0x550 [ 39.283110] ? fsnotify_first_mark+0x2b0/0x2b0 [ 39.287689] snd_pcm_oss_release+0x20b/0x280 [ 39.292084] ? snd_pcm_oss_sync+0x830/0x830 [ 39.296377] __fput+0x327/0x7e0 [ 39.299630] ? fput+0x140/0x140 [ 39.302887] ? _raw_spin_unlock_irq+0x27/0x70 [ 39.307365] ____fput+0x15/0x20 [ 39.310614] task_work_run+0x199/0x270 [ 39.314489] ? task_work_cancel+0x210/0x210 [ 39.318784] ? _raw_spin_unlock+0x22/0x30 [ 39.322899] ? switch_task_namespaces+0x87/0xc0 [ 39.327540] do_exit+0x9bb/0x1ad0 [ 39.330963] ? __pmd_alloc+0x4e0/0x4e0 [ 39.334824] ? mm_update_next_owner+0x930/0x930 [ 39.339471] ? avc_has_extended_perms+0x7fa/0x12c0 [ 39.344406] ? avc_ss_reset+0x110/0x110 [ 39.348360] ? __do_page_fault+0x5f7/0xc90 [ 39.352594] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 39.358459] ? up_read+0x1a/0x40 [ 39.361807] ? rcu_note_context_switch+0x710/0x710 [ 39.366715] ? snd_pcm_oss_release+0x280/0x280 [ 39.371276] ? do_vfs_ioctl+0x486/0x1520 [ 39.375311] ? _cond_resched+0x14/0x30 [ 39.379177] ? ioctl_preallocate+0x2b0/0x2b0 [ 39.383566] ? selinux_capable+0x40/0x40 [ 39.387620] do_group_exit+0x149/0x400 [ 39.391512] ? SyS_exit+0x30/0x30 [ 39.394982] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 39.399990] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 39.404735] SyS_exit_group+0x1d/0x20 [ 39.408513] entry_SYSCALL_64_fastpath+0x23/0x9a [ 39.413236] RIP: 0033:0x4429f8 [ 39.416398] RSP: 002b:00007ffedbeed688 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 39.424084] RAX: ffffffffffffffda RBX: 00000000004002e0 RCX: 00000000004429f8 [ 39.431333] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 39.438588] RBP: 00000000006ce018 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 39.445851] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401a40 [ 39.453106] R13: 0000000000401ad0 R14: 0000000000000000 R15: 0000000000000000 [ 39.460917] Dumping ftrace buffer: [ 39.464588] (ftrace buffer empty) [ 39.468280] Kernel Offset: disabled [ 39.471905] Rebooting in 86400 seconds..