[....] Starting enhanced syslogd: rsyslogd[ 12.354195] audit: type=1400 audit(1514752910.885:5): avc: denied { syslog } for pid=3342 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: [ 17.318510] audit: type=1400 audit(1514752915.849:6): 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 '10.128.15.206' (ECDSA) to the list of known hosts. executing program [ 28.280281] audit: type=1400 audit(1514752926.811:7): avc: denied { map } for pid=3498 comm="syzkaller248263" path="/root/syzkaller248263494" 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 [ 28.284797] WARNING: CPU: 1 PID: 3498 at sound/core/pcm_lib.c:1635 snd_pcm_hw_param_first+0x289/0x690 [ 28.284806] Kernel panic - not syncing: panic_on_warn set ... [ 28.284806] [ 28.284811] CPU: 1 PID: 3498 Comm: syzkaller248263 Not tainted 4.15.0-rc5+ #244 [ 28.284814] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.284816] Call Trace: [ 28.284824] dump_stack+0x194/0x257 [ 28.284832] ? arch_local_irq_restore+0x53/0x53 [ 28.284843] ? vsnprintf+0x1ed/0x1900 [ 28.284852] panic+0x1e4/0x41c [ 28.284857] ? refcount_error_report+0x214/0x214 [ 28.284863] ? show_regs_print_info+0x18/0x18 [ 28.284874] ? __warn+0x1c1/0x200 [ 28.284882] ? snd_pcm_hw_param_first+0x289/0x690 [ 28.284886] __warn+0x1dc/0x200 [ 28.284891] ? snd_pcm_hw_param_first+0x289/0x690 [ 28.284898] report_bug+0x211/0x2d0 [ 28.284910] fixup_bug.part.11+0x37/0x80 [ 28.284916] do_error_trap+0x2d7/0x3e0 [ 28.284923] ? snd_pcm_oss_sync+0x257/0x830 [ 28.284926] ? snd_pcm_oss_release+0x20b/0x280 [ 28.284932] ? __fput+0x327/0x7e0 [ 28.284939] ? math_error+0x400/0x400 [ 28.284944] ? entry_SYSCALL_64_fastpath+0x23/0x9a [ 28.284953] ? check_noncircular+0x20/0x20 [ 28.284959] ? print_irqtrace_events+0x270/0x270 [ 28.284968] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 28.284978] do_invalid_op+0x1b/0x20 [ 28.284983] invalid_op+0x22/0x40 [ 28.284987] RIP: 0010:snd_pcm_hw_param_first+0x289/0x690 [ 28.284989] RSP: 0018:ffff8801c025f338 EFLAGS: 00010293 [ 28.284994] RAX: ffff8801bfcc6240 RBX: ffff8801c00d8040 RCX: ffffffff841bee19 [ 28.284997] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: ffffed003804be60 [ 28.284999] RBP: ffff8801c025f388 R08: ffffed003804bd96 R09: ffff8801c025eca8 [ 28.285004] R10: 0000000000000001 R11: ffffed003804bd95 R12: 000000000000000d [ 28.285007] R13: 00000000ffffffea R14: 0000000000000005 R15: 0000000000002000 [ 28.285019] ? snd_pcm_hw_param_first+0x289/0x690 [ 28.285028] ? snd_pcm_hw_param_first+0x289/0x690 [ 28.285041] snd_pcm_hw_param_near.constprop.27+0x78d/0x9a0 [ 28.285054] ? _snd_pcm_hw_param_set.constprop.26+0x6f0/0x6f0 [ 28.285061] ? snd_pcm_plugin_free+0xb1/0xe0 [ 28.285066] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 28.285072] ? trace_hardirqs_on+0xd/0x10 [ 28.285079] ? snd_pcm_plug_slave_size+0x148/0x2c0 [ 28.285088] snd_pcm_oss_change_params+0x17d3/0x3720 [ 28.285108] ? snd_pcm_hw_param_near.constprop.27+0x9a0/0x9a0 [ 28.285122] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 28.285132] ? rcutorture_record_progress+0x10/0x10 [ 28.285145] ? is_bpf_text_address+0xa4/0x120 [ 28.285151] ? kernel_text_address+0x102/0x140 [ 28.285158] ? __kernel_text_address+0xd/0x40 [ 28.285164] ? unwind_get_return_address+0x61/0xa0 [ 28.285172] ? check_noncircular+0x20/0x20 [ 28.285189] snd_pcm_oss_make_ready+0xaa/0x130 [ 28.285196] snd_pcm_oss_sync+0x257/0x830 [ 28.285204] ? snd_pcm_oss_sync1+0x550/0x550 [ 28.285212] ? fsnotify_first_mark+0x2b0/0x2b0 [ 28.285223] snd_pcm_oss_release+0x20b/0x280 [ 28.285229] ? snd_pcm_oss_sync+0x830/0x830 [ 28.285233] __fput+0x327/0x7e0 [ 28.285244] ? fput+0x140/0x140 [ 28.285250] ? _raw_spin_unlock_irq+0x27/0x70 [ 28.285261] ____fput+0x15/0x20 [ 28.285266] task_work_run+0x199/0x270 [ 28.285275] ? task_work_cancel+0x210/0x210 [ 28.285280] ? _raw_spin_unlock+0x22/0x30 [ 28.285286] ? switch_task_namespaces+0x87/0xc0 [ 28.285296] do_exit+0x9bb/0x1ad0 [ 28.285301] ? __pmd_alloc+0x4e0/0x4e0 [ 28.285311] ? mm_update_next_owner+0x930/0x930 [ 28.285318] ? avc_has_extended_perms+0x7fa/0x12c0 [ 28.285332] ? avc_ss_reset+0x110/0x110 [ 28.285346] ? __do_page_fault+0x5f7/0xc90 [ 28.285374] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 28.285378] ? up_read+0x1a/0x40 [ 28.285384] ? rcu_note_context_switch+0x710/0x710 [ 28.285396] ? snd_pcm_oss_release+0x280/0x280 [ 28.285401] ? do_vfs_ioctl+0x486/0x1520 [ 28.285404] ? _cond_resched+0x14/0x30 [ 28.285414] ? ioctl_preallocate+0x2b0/0x2b0 [ 28.285422] ? selinux_capable+0x40/0x40 [ 28.285429] ? do_restart_poll+0x2a0/0x2a0 [ 28.285433] ? putname+0xf3/0x130 [ 28.285444] do_group_exit+0x149/0x400 [ 28.285451] ? SyS_exit+0x30/0x30 [ 28.285457] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 28.285481] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 28.285490] SyS_exit_group+0x1d/0x20 [ 28.285495] entry_SYSCALL_64_fastpath+0x23/0x9a [ 28.285499] RIP: 0033:0x442ac8 [ 28.285501] RSP: 002b:00007ffe60770a88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 28.285505] RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 0000000000442ac8 [ 28.285507] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 28.285510] RBP: 00000000006ce018 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 28.285512] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401b10 [ 28.285514] R13: 0000000000401ba0 R14: 0000000000000000 R15: 0000000000000000 [ 28.306514] Dumping ftrace buffer: [ 28.306553] (ftrace buffer empty) [ 28.306555] Kernel Offset: disabled [ 28.773910] Rebooting in 86400 seconds..