[....] Starting enhanced syslogd: rsyslogd[ 11.233331] audit: type=1400 audit(1514977976.530:5): avc: denied { syslog } for pid=3317 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: [ 16.143488] audit: type=1400 audit(1514977981.440:6): avc: denied { map } for pid=3455 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 '10.128.0.15' (ECDSA) to the list of known hosts. executing program [ 25.769121] audit: type=1400 audit(1514977991.065:7): avc: denied { map } for pid=3470 comm="syzkaller982530" path="/root/syzkaller982530262" 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 [ 26.337815] WARNING: CPU: 1 PID: 3470 at sound/core/pcm_lib.c:1635 snd_pcm_hw_param_first+0x289/0x690 [ 26.347209] Kernel panic - not syncing: panic_on_warn set ... [ 26.347209] [ 26.354543] CPU: 1 PID: 3470 Comm: syzkaller982530 Not tainted 4.15.0-rc6+ #245 [ 26.361960] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.371283] Call Trace: [ 26.373851] dump_stack+0x194/0x257 [ 26.377459] ? arch_local_irq_restore+0x53/0x53 [ 26.382100] ? vsnprintf+0x1ed/0x1900 [ 26.385874] panic+0x1e4/0x41c [ 26.389051] ? refcount_error_report+0x214/0x214 [ 26.393776] ? show_regs_print_info+0x18/0x18 [ 26.398244] ? __warn+0x1c1/0x200 [ 26.401667] ? snd_pcm_hw_param_first+0x289/0x690 [ 26.406473] __warn+0x1dc/0x200 [ 26.409721] ? snd_pcm_hw_param_first+0x289/0x690 [ 26.414533] report_bug+0x211/0x2d0 [ 26.418131] fixup_bug.part.11+0x37/0x80 [ 26.422159] do_error_trap+0x2d7/0x3e0 [ 26.426012] ? snd_pcm_oss_sync+0x257/0x830 [ 26.430297] ? snd_pcm_oss_release+0x20b/0x280 [ 26.434844] ? __fput+0x327/0x7e0 [ 26.438268] ? math_error+0x400/0x400 [ 26.442035] ? entry_SYSCALL_64_fastpath+0x23/0x9a [ 26.446935] ? check_noncircular+0x20/0x20 [ 26.451137] ? print_irqtrace_events+0x270/0x270 [ 26.455863] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 26.460676] do_invalid_op+0x1b/0x20 [ 26.464357] invalid_op+0x22/0x40 [ 26.467807] RIP: 0010:snd_pcm_hw_param_first+0x289/0x690 [ 26.473221] RSP: 0018:ffff8801c041f338 EFLAGS: 00010293 [ 26.478550] RAX: ffff8801c08426c0 RBX: ffff8801c06c0900 RCX: ffffffff841beea9 [ 26.485786] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: ffffed0038083e60 [ 26.493028] RBP: ffff8801c041f388 R08: ffffed0038083d96 R09: ffff8801c041eca8 [ 26.500267] R10: 0000000000000001 R11: ffffed0038083d95 R12: 000000000000000d [ 26.507509] R13: 00000000ffffffea R14: 0000000000000005 R15: 0000000000002000 [ 26.514765] ? snd_pcm_hw_param_first+0x289/0x690 [ 26.519579] ? snd_pcm_hw_param_first+0x289/0x690 [ 26.524398] snd_pcm_hw_param_near.constprop.27+0x78d/0x9a0 [ 26.530093] ? _snd_pcm_hw_param_set.constprop.26+0x6f0/0x6f0 [ 26.535945] ? snd_pcm_plugin_free+0xb1/0xe0 [ 26.540326] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 26.545308] ? trace_hardirqs_on+0xd/0x10 [ 26.549423] ? snd_pcm_plug_slave_size+0x148/0x2c0 [ 26.554324] snd_pcm_oss_change_params+0x17d3/0x3720 [ 26.559412] ? snd_pcm_hw_param_near.constprop.27+0x9a0/0x9a0 [ 26.565452] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 26.570611] ? rcutorture_record_progress+0x10/0x10 [ 26.575599] ? is_bpf_text_address+0xa4/0x120 [ 26.580062] ? kernel_text_address+0x102/0x140 [ 26.584610] ? __kernel_text_address+0xd/0x40 [ 26.589070] ? unwind_get_return_address+0x61/0xa0 [ 26.593969] ? check_noncircular+0x20/0x20 [ 26.598180] snd_pcm_oss_make_ready+0xaa/0x130 [ 26.602729] snd_pcm_oss_sync+0x257/0x830 [ 26.606845] ? snd_pcm_oss_sync1+0x550/0x550 [ 26.611224] ? fsnotify_first_mark+0x2b0/0x2b0 [ 26.615777] snd_pcm_oss_release+0x20b/0x280 [ 26.620151] ? snd_pcm_oss_sync+0x830/0x830 [ 26.624440] __fput+0x327/0x7e0 [ 26.627691] ? fput+0x140/0x140 [ 26.630940] ? _raw_spin_unlock_irq+0x27/0x70 [ 26.635409] ____fput+0x15/0x20 [ 26.638657] task_work_run+0x199/0x270 [ 26.642516] ? task_work_cancel+0x210/0x210 [ 26.646805] ? _raw_spin_unlock+0x22/0x30 [ 26.650919] ? switch_task_namespaces+0x87/0xc0 [ 26.655560] do_exit+0x9bb/0x1ad0 [ 26.658983] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 26.663966] ? wait_for_completion+0x770/0x770 [ 26.668533] ? mm_update_next_owner+0x930/0x930 [ 26.673169] ? avc_has_extended_perms+0x7fa/0x12c0 [ 26.678063] ? retint_user+0x9/0x18 [ 26.681664] ? avc_ss_reset+0x110/0x110 [ 26.685610] ? copy_user_enhanced_fast_string+0xe/0x20 [ 26.690860] ? mutex_unlock+0xd/0x10 [ 26.694542] ? snd_pcm_oss_read+0x4cd/0x6e0 [ 26.698840] ? snd_pcm_oss_read2+0x410/0x410 [ 26.703228] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 26.709083] ? rcu_note_context_switch+0x710/0x710 [ 26.713986] ? snd_pcm_oss_release+0x280/0x280 [ 26.718533] ? do_vfs_ioctl+0x486/0x1520 [ 26.722557] ? _cond_resched+0x14/0x30 [ 26.726418] ? ioctl_preallocate+0x2b0/0x2b0 [ 26.730797] ? selinux_capable+0x40/0x40 [ 26.734829] ? vfs_read+0x16b/0x350 [ 26.738427] do_group_exit+0x149/0x400 [ 26.742282] ? SyS_exit+0x30/0x30 [ 26.745703] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 26.750686] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 26.755413] SyS_exit_group+0x1d/0x20 [ 26.759181] entry_SYSCALL_64_fastpath+0x23/0x9a [ 26.763906] RIP: 0033:0x4429c8 [ 26.767074] RSP: 002b:00007ffd4cee2718 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 26.774747] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00000000004429c8 [ 26.781986] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 26.789222] RBP: 00000000006ce018 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 26.796456] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 26.803701] R13: 0000000000401aa0 R14: 0000000000000000 R15: 0000000000000000 [ 26.811589] Dumping ftrace buffer: [ 26.815160] (ftrace buffer empty) [ 26.818837] Kernel Offset: disabled [ 26.822433] Rebooting in 86400 seconds..