[....] Starting enhanced syslogd: rsyslogd[ 12.303251] audit: type=1400 audit(1514740332.956:5): 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: [ 18.545397] audit: type=1400 audit(1514740339.198:6): avc: denied { map } for pid=3485 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 [ 37.184742] audit: type=1400 audit(1514740357.837:7): avc: denied { map } for pid=3502 comm="syzkaller781065" path="/root/syzkaller781065961" 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 [ 37.192540] WARNING: CPU: 0 PID: 3502 at sound/core/pcm_lib.c:1635 snd_pcm_hw_param_first+0x289/0x690 [ 37.192555] Kernel panic - not syncing: panic_on_warn set ... [ 37.192555] [ 37.192562] CPU: 0 PID: 3502 Comm: syzkaller781065 Not tainted 4.15.0-rc5+ #154 [ 37.192566] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.192570] Call Trace: [ 37.192582] dump_stack+0x194/0x257 [ 37.192597] ? arch_local_irq_restore+0x53/0x53 [ 37.192614] ? vsnprintf+0x1ed/0x1900 [ 37.192633] panic+0x1e4/0x41c [ 37.192642] ? refcount_error_report+0x214/0x214 [ 37.192651] ? show_regs_print_info+0x18/0x18 [ 37.192673] ? __warn+0x1c1/0x200 [ 37.192687] ? snd_pcm_hw_param_first+0x289/0x690 [ 37.192694] __warn+0x1dc/0x200 [ 37.192704] ? snd_pcm_hw_param_first+0x289/0x690 [ 37.192718] report_bug+0x211/0x2d0 [ 37.192737] fixup_bug.part.11+0x37/0x80 [ 37.192749] do_error_trap+0x2d7/0x3e0 [ 37.192758] ? snd_pcm_oss_release+0x20b/0x280 [ 37.192765] ? __fput+0x327/0x7e0 [ 37.192771] ? ____fput+0x15/0x20 [ 37.192784] ? math_error+0x400/0x400 [ 37.192793] ? entry_SYSENTER_compat+0x54/0x63 [ 37.192807] ? check_noncircular+0x20/0x20 [ 37.192817] ? print_irqtrace_events+0x270/0x270 [ 37.192835] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 37.192853] do_invalid_op+0x1b/0x20 [ 37.192861] invalid_op+0x22/0x40 [ 37.192869] RIP: 0010:snd_pcm_hw_param_first+0x289/0x690 [ 37.192874] RSP: 0018:ffff8801c013f1a0 EFLAGS: 00010293 [ 37.192882] RAX: ffff8801c03bc3c0 RBX: ffff8801bff08dc0 RCX: ffffffff841bee19 [ 37.192887] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: ffffed0038027e28 [ 37.192891] RBP: ffff8801c013f1f0 R08: ffffed0038027d63 R09: ffff8801c013eb10 [ 37.192895] R10: 0000000000000001 R11: ffffed0038027d62 R12: 000000000000000d [ 37.192899] R13: 00000000ffffffea R14: 0000000000000005 R15: 0000000000002000 [ 37.192922] ? snd_pcm_hw_param_first+0x289/0x690 [ 37.192957] snd_pcm_hw_param_near.constprop.27+0x78d/0x9a0 [ 37.192982] ? _snd_pcm_hw_param_set.constprop.26+0x6f0/0x6f0 [ 37.192994] ? snd_pcm_plugin_free+0xb1/0xe0 [ 37.193008] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 37.193020] ? trace_hardirqs_on+0xd/0x10 [ 37.193032] ? snd_pcm_plug_slave_size+0x148/0x2c0 [ 37.193058] snd_pcm_oss_change_params+0x17d3/0x3720 [ 37.193092] ? snd_pcm_hw_param_near.constprop.27+0x9a0/0x9a0 [ 37.193098] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 37.193120] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 37.193131] ? depot_save_stack+0x3b5/0x490 [ 37.193141] ? lock_downgrade+0x980/0x980 [ 37.193154] ? lock_release+0xa40/0xa40 [ 37.193169] ? is_bpf_text_address+0xa4/0x120 [ 37.193178] ? do_raw_spin_trylock+0x190/0x190 [ 37.193192] ? __kernel_text_address+0xd/0x40 [ 37.193202] ? unwind_get_return_address+0x61/0xa0 [ 37.193217] ? check_noncircular+0x20/0x20 [ 37.193243] snd_pcm_oss_make_ready+0xaa/0x130 [ 37.193257] snd_pcm_oss_sync+0x257/0x830 [ 37.193270] ? snd_pcm_oss_sync1+0x550/0x550 [ 37.193283] ? fsnotify_first_mark+0x2b0/0x2b0 [ 37.193301] snd_pcm_oss_release+0x20b/0x280 [ 37.193310] ? snd_pcm_oss_sync+0x830/0x830 [ 37.193318] __fput+0x327/0x7e0 [ 37.193337] ? fput+0x140/0x140 [ 37.193347] ? _raw_spin_unlock_irq+0x27/0x70 [ 37.193366] ____fput+0x15/0x20 [ 37.193375] task_work_run+0x199/0x270 [ 37.193388] ? task_work_cancel+0x210/0x210 [ 37.193398] ? _raw_spin_unlock+0x22/0x30 [ 37.193407] ? switch_task_namespaces+0x87/0xc0 [ 37.193423] do_exit+0x9bb/0x1ad0 [ 37.193432] ? __handle_mm_fault+0x2330/0x3ce0 [ 37.193448] ? mm_update_next_owner+0x930/0x930 [ 37.193463] ? __might_fault+0x188/0x1d0 [ 37.193476] ? do_raw_spin_trylock+0x190/0x190 [ 37.193493] ? check_noncircular+0x20/0x20 [ 37.193504] ? _raw_spin_unlock+0x22/0x30 [ 37.193513] ? __handle_mm_fault+0x80e/0x3ce0 [ 37.193530] ? check_noncircular+0x20/0x20 [ 37.193536] ? __pmd_alloc+0x4e0/0x4e0 [ 37.193541] ? set_fd_set.part.0+0x70/0x70 [ 37.193560] ? find_held_lock+0x35/0x1d0 [ 37.193579] ? handle_mm_fault+0x248/0x8d0 [ 37.193592] ? find_held_lock+0x35/0x1d0 [ 37.193613] ? __do_page_fault+0x5f7/0xc90 [ 37.193623] ? lock_downgrade+0x980/0x980 [ 37.193644] ? handle_mm_fault+0x410/0x8d0 [ 37.193650] ? down_read_trylock+0xdb/0x170 [ 37.193655] ? __do_page_fault+0x32d/0xc90 [ 37.193665] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 37.193674] ? vmacache_find+0x5f/0x280 [ 37.193692] do_group_exit+0x149/0x400 [ 37.193701] ? __do_page_fault+0x3d6/0xc90 [ 37.193709] ? SyS_exit+0x30/0x30 [ 37.193725] ? do_fast_syscall_32+0x156/0xf9d [ 37.193733] ? do_group_exit+0x400/0x400 [ 37.193743] SyS_exit_group+0x1d/0x20 [ 37.193753] do_fast_syscall_32+0x3ee/0xf9d [ 37.193770] ? do_int80_syscall_32+0x9d0/0x9d0 [ 37.193780] ? kasan_check_read+0x11/0x20 [ 37.193792] ? syscall_return_slowpath+0x550/0x550 [ 37.193803] ? SyS_rt_sigaction+0x94/0x1b0 [ 37.193813] ? SyS_sigprocmask+0x4b0/0x4b0 [ 37.193819] ? SyS_read+0x184/0x220 [ 37.193828] ? retint_user+0x18/0x18 [ 37.193843] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 37.193862] entry_SYSENTER_compat+0x54/0x63 [ 37.193868] RIP: 0023:0xf7f4ec79 [ 37.193871] RSP: 002b:00000000ffc2c18c EFLAGS: 00000292 ORIG_RAX: 00000000000000fc [ 37.193879] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000080f0298 [ 37.193882] RDX: 0000000000000000 RSI: 00000000080d9b78 RDI: 00000000080f02a0 [ 37.193885] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 [ 37.193889] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 37.193893] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 37.211176] Dumping ftrace buffer: [ 37.211315] (ftrace buffer empty) [ 37.211319] Kernel Offset: disabled [ 37.772858] Rebooting in 86400 seconds..