[....] Starting enhanced syslogd: rsyslogd[ 12.354508] audit: type=1400 audit(1514729809.107:5): avc: denied { syslog } for pid=3343 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 mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] 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: [ 16.633303] audit: type=1400 audit(1514729813.385:6): avc: denied { map } for pid=3483 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 '10.128.15.235' (ECDSA) to the list of known hosts. executing program [ 22.837876] audit: type=1400 audit(1514729819.590:7): avc: denied { map } for pid=3497 comm="syzkaller904422" path="/root/syzkaller904422653" 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 [ 23.393736] WARNING: CPU: 0 PID: 3497 at sound/core/pcm_lib.c:1635 snd_pcm_hw_param_first+0x289/0x690 [ 23.403135] Kernel panic - not syncing: panic_on_warn set ... [ 23.403135] [ 23.411045] CPU: 0 PID: 3497 Comm: syzkaller904422 Not tainted 4.15.0-rc5+ #154 [ 23.418461] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 23.427782] Call Trace: [ 23.430351] dump_stack+0x194/0x257 [ 23.433947] ? arch_local_irq_restore+0x53/0x53 [ 23.438588] ? vsnprintf+0x1ed/0x1900 [ 23.442358] panic+0x1e4/0x41c [ 23.445527] ? refcount_error_report+0x214/0x214 [ 23.450256] ? show_regs_print_info+0x18/0x18 [ 23.454723] ? __warn+0x1c1/0x200 [ 23.458147] ? snd_pcm_hw_param_first+0x289/0x690 [ 23.462953] __warn+0x1dc/0x200 [ 23.466200] ? snd_pcm_hw_param_first+0x289/0x690 [ 23.471706] report_bug+0x211/0x2d0 [ 23.475306] fixup_bug.part.11+0x37/0x80 [ 23.479333] do_error_trap+0x2d7/0x3e0 [ 23.483188] ? snd_pcm_oss_release+0x20b/0x280 [ 23.487737] ? __fput+0x327/0x7e0 [ 23.491155] ? ____fput+0x15/0x20 [ 23.494577] ? math_error+0x400/0x400 [ 23.498346] ? entry_SYSENTER_compat+0x54/0x63 [ 23.502902] ? check_noncircular+0x20/0x20 [ 23.507114] ? print_irqtrace_events+0x270/0x270 [ 23.511843] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 23.516658] do_invalid_op+0x1b/0x20 [ 23.520339] invalid_op+0x22/0x40 [ 23.523758] RIP: 0010:snd_pcm_hw_param_first+0x289/0x690 [ 23.529434] RSP: 0018:ffff8801c06971a0 EFLAGS: 00010293 [ 23.534772] RAX: ffff8801c0b74480 RBX: ffff8801c15cdb00 RCX: ffffffff841bee19 [ 23.542011] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: ffffed00380d2e28 [ 23.549247] RBP: ffff8801c06971f0 R08: ffffed00380d2d63 R09: ffff8801c0696b10 [ 23.556492] R10: 0000000000000001 R11: ffffed00380d2d62 R12: 000000000000000d [ 23.563728] R13: 00000000ffffffea R14: 0000000000000005 R15: 0000000000002000 [ 23.570983] ? snd_pcm_hw_param_first+0x289/0x690 [ 23.575805] snd_pcm_hw_param_near.constprop.27+0x78d/0x9a0 [ 23.581490] ? _snd_pcm_hw_param_set.constprop.26+0x6f0/0x6f0 [ 23.587341] ? snd_pcm_plugin_free+0xb1/0xe0 [ 23.591716] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 23.596701] ? trace_hardirqs_on+0xd/0x10 [ 23.600818] ? snd_pcm_plug_slave_size+0x148/0x2c0 [ 23.605720] snd_pcm_oss_change_params+0x17d3/0x3720 [ 23.610806] ? snd_pcm_hw_param_near.constprop.27+0x9a0/0x9a0 [ 23.616663] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 23.621831] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 23.626989] ? depot_save_stack+0x3b5/0x490 [ 23.631278] ? lock_downgrade+0x980/0x980 [ 23.635395] ? lock_release+0xa40/0xa40 [ 23.639338] ? is_bpf_text_address+0xa4/0x120 [ 23.644139] ? do_raw_spin_trylock+0x190/0x190 [ 23.648693] ? __kernel_text_address+0xd/0x40 [ 23.653157] ? unwind_get_return_address+0x61/0xa0 [ 23.658063] ? check_noncircular+0x20/0x20 [ 23.662277] snd_pcm_oss_make_ready+0xaa/0x130 [ 23.666830] snd_pcm_oss_sync+0x257/0x830 [ 23.670946] ? snd_pcm_oss_sync1+0x550/0x550 [ 23.675332] ? fsnotify_first_mark+0x2b0/0x2b0 [ 23.679886] snd_pcm_oss_release+0x20b/0x280 [ 23.684263] ? snd_pcm_oss_sync+0x830/0x830 [ 23.688551] __fput+0x327/0x7e0 [ 23.691804] ? fput+0x140/0x140 [ 23.695052] ? _raw_spin_unlock_irq+0x27/0x70 [ 23.699519] ____fput+0x15/0x20 [ 23.702765] task_work_run+0x199/0x270 [ 23.706635] ? task_work_cancel+0x210/0x210 [ 23.710925] ? _raw_spin_unlock+0x22/0x30 [ 23.715041] ? switch_task_namespaces+0x87/0xc0 [ 23.719692] do_exit+0x9bb/0x1ad0 [ 23.724208] ? __handle_mm_fault+0x2330/0x3ce0 [ 23.730496] ? mm_update_next_owner+0x930/0x930 [ 23.736011] ? __might_fault+0x188/0x1d0 [ 23.740048] ? do_raw_spin_trylock+0x190/0x190 [ 23.744601] ? check_noncircular+0x20/0x20 [ 23.748804] ? _raw_spin_unlock+0x22/0x30 [ 23.752919] ? __handle_mm_fault+0x80e/0x3ce0 [ 23.757386] ? check_noncircular+0x20/0x20 [ 23.761584] ? __pmd_alloc+0x4e0/0x4e0 [ 23.765445] ? find_held_lock+0x35/0x1d0 [ 23.769478] ? handle_mm_fault+0x248/0x8d0 [ 23.773680] ? find_held_lock+0x35/0x1d0 [ 23.777715] ? __do_page_fault+0x5f7/0xc90 [ 23.781917] ? lock_downgrade+0x980/0x980 [ 23.786037] ? handle_mm_fault+0x410/0x8d0 [ 23.790235] ? down_read_trylock+0xdb/0x170 [ 23.794519] ? __do_page_fault+0x32d/0xc90 [ 23.798722] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 23.803271] ? vmacache_find+0x5f/0x280 [ 23.807217] do_group_exit+0x149/0x400 [ 23.811072] ? __do_page_fault+0x3d6/0xc90 [ 23.815271] ? SyS_exit+0x30/0x30 [ 23.818695] ? do_fast_syscall_32+0x156/0xf9d [ 23.823157] ? do_group_exit+0x400/0x400 [ 23.827183] SyS_exit_group+0x1d/0x20 [ 23.830948] do_fast_syscall_32+0x3ee/0xf9d [ 23.835250] ? do_int80_syscall_32+0x9d0/0x9d0 [ 23.839799] ? kasan_check_read+0x11/0x20 [ 23.843915] ? syscall_return_slowpath+0x550/0x550 [ 23.848814] ? SyS_rt_sigaction+0x94/0x1b0 [ 23.853017] ? SyS_sigprocmask+0x4b0/0x4b0 [ 23.857227] ? SyS_read+0x184/0x220 [ 23.860822] ? retint_user+0x18/0x18 [ 23.864508] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 23.869324] entry_SYSENTER_compat+0x54/0x63 [ 23.873696] RIP: 0023:0xf7fb6c79 [ 23.877036] RSP: 002b:00000000ffaf72cc EFLAGS: 00000296 ORIG_RAX: 00000000000000fc [ 23.886545] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000080f0298 [ 23.893782] RDX: 0000000000000000 RSI: 00000000080d9ab8 RDI: 00000000080f02a0 [ 23.901027] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 [ 23.908267] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 23.916373] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 23.924467] Dumping ftrace buffer: [ 23.928053] (ftrace buffer empty) [ 23.931732] Kernel Offset: disabled [ 23.935327] Rebooting in 86400 seconds..