[....] Starting enhanced syslogd: rsyslogd[ 12.466613] audit: type=1400 audit(1515349215.966:5): avc: denied { syslog } for pid=3340 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: [ 17.978878] audit: type=1400 audit(1515349221.478:6): avc: denied { map } for pid=3480 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 '10.128.15.223' (ECDSA) to the list of known hosts. [ 120.017121] audit: type=1400 audit(1515349323.516:7): avc: denied { map } for pid=3498 comm="syz-execprog" path="/root/syz-execprog" dev="sda1" ino=16479 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 2018/01/07 18:22:03 parsed 1 programs 2018/01/07 18:22:03 executed programs: 0 [ 120.139722] audit: type=1400 audit(1515349323.639:8): avc: denied { map } for pid=3498 comm="syz-execprog" path="/root/syzkaller-shm647466026" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1 2018/01/07 18:22:08 executed programs: 617 2018/01/07 18:22:13 executed programs: 1288 [ 130.534586] WARNING: CPU: 0 PID: 7523 at sound/core/pcm_lib.c:1635 snd_pcm_hw_param_first+0x289/0x690 [ 130.544026] Kernel panic - not syncing: panic_on_warn set ... [ 130.544026] [ 130.551376] CPU: 0 PID: 7523 Comm: syz-executor1 Not tainted 4.15.0-rc6+ #160 [ 130.558636] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 130.567981] Call Trace: [ 130.570563] dump_stack+0x194/0x257 [ 130.574199] ? arch_local_irq_restore+0x53/0x53 [ 130.578892] ? vsnprintf+0x1ed/0x1900 [ 130.582699] panic+0x1e4/0x41c [ 130.585884] ? refcount_error_report+0x214/0x214 [ 130.590636] ? show_regs_print_info+0x18/0x18 [ 130.595134] ? __warn+0x1c1/0x200 [ 130.598587] ? snd_pcm_hw_param_first+0x289/0x690 [ 130.603427] __warn+0x1dc/0x200 [ 130.606708] ? snd_pcm_hw_param_first+0x289/0x690 [ 130.611546] report_bug+0x211/0x2d0 [ 130.615157] fixup_bug.part.11+0x37/0x80 [ 130.619205] do_error_trap+0x2d7/0x3e0 [ 130.623067] ? snd_pcm_oss_release+0x20b/0x280 [ 130.627626] ? __fput+0x327/0x7e0 [ 130.631056] ? ____fput+0x15/0x20 [ 130.634500] ? math_error+0x400/0x400 [ 130.638300] ? exit_to_usermode_loop+0x214/0x310 [ 130.643048] ? do_fast_syscall_32+0xbfd/0xf9d [ 130.647533] ? entry_SYSENTER_compat+0x54/0x63 [ 130.652131] ? check_noncircular+0x20/0x20 [ 130.656387] ? print_irqtrace_events+0x270/0x270 [ 130.661136] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 130.665978] do_invalid_op+0x1b/0x20 [ 130.669684] invalid_op+0x22/0x40 [ 130.673112] RIP: 0010:snd_pcm_hw_param_first+0x289/0x690 [ 130.678538] RSP: 0018:ffff8801d0bced40 EFLAGS: 00010293 [ 130.683907] RAX: ffff8801cde04180 RBX: ffff8801cb0a5200 RCX: ffffffff841bfb79 [ 130.691175] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: ffffed003a179da0 [ 130.698435] RBP: ffff8801d0bced90 R08: ffffed003a179cd7 R09: ffff8801d0bce6b0 [ 130.705698] R10: 0000000000000001 R11: ffffed003a179cd6 R12: 000000000000000d [ 130.712959] R13: 00000000ffffffea R14: 0000000000000005 R15: 0000000000002000 [ 130.720229] ? snd_pcm_hw_param_first+0x289/0x690 [ 130.725085] snd_pcm_hw_param_near.constprop.27+0x78d/0x9a0 [ 130.730815] ? _snd_pcm_hw_param_set.constprop.26+0x6f0/0x6f0 [ 130.736694] ? snd_pcm_plugin_free+0xb1/0xe0 [ 130.741091] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 130.746106] ? trace_hardirqs_on+0xd/0x10 [ 130.750258] ? snd_pcm_plug_slave_size+0x148/0x2c0 [ 130.755182] snd_pcm_oss_change_params+0x17d3/0x3720 [ 130.760284] ? snd_pcm_hw_param_near.constprop.27+0x9a0/0x9a0 [ 130.766162] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 130.771324] ? lock_downgrade+0x980/0x980 [ 130.775455] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 130.780611] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 130.785778] ? rcutorture_record_progress+0x10/0x10 [ 130.790772] ? is_bpf_text_address+0xa4/0x120 [ 130.795247] ? kernel_text_address+0x102/0x140 [ 130.799798] ? __kernel_text_address+0xd/0x40 [ 130.804264] ? unwind_get_return_address+0x61/0xa0 [ 130.809171] ? check_noncircular+0x20/0x20 [ 130.813393] snd_pcm_oss_make_ready+0xaa/0x130 [ 130.817950] snd_pcm_oss_sync+0x257/0x830 [ 130.822088] ? snd_pcm_oss_sync1+0x550/0x550 [ 130.826468] ? fsnotify_first_mark+0x2b0/0x2b0 [ 130.831033] snd_pcm_oss_release+0x20b/0x280 [ 130.835419] ? snd_pcm_oss_sync+0x830/0x830 [ 130.839710] __fput+0x327/0x7e0 [ 130.842970] ? fput+0x140/0x140 [ 130.846223] ? _raw_spin_unlock_irq+0x27/0x70 [ 130.850694] ____fput+0x15/0x20 [ 130.853952] task_work_run+0x199/0x270 [ 130.857819] ? task_work_cancel+0x210/0x210 [ 130.862112] ? _raw_spin_unlock+0x22/0x30 [ 130.866228] ? switch_task_namespaces+0x87/0xc0 [ 130.870871] do_exit+0x9bb/0x1ad0 [ 130.874298] ? find_held_lock+0x35/0x1d0 [ 130.878343] ? mm_update_next_owner+0x930/0x930 [ 130.882988] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 130.888151] ? lock_downgrade+0x980/0x980 [ 130.892272] ? __unqueue_futex+0x1c0/0x290 [ 130.896481] ? lock_release+0xa40/0xa40 [ 130.900433] ? fault_in_user_writeable+0x90/0x90 [ 130.905161] ? do_raw_spin_trylock+0x190/0x190 [ 130.909712] ? futex_wake+0x680/0x680 [ 130.913487] ? drop_futex_key_refs.isra.12+0x63/0xb0 [ 130.918559] ? futex_wait+0x6a9/0x9a0 [ 130.922340] ? check_noncircular+0x20/0x20 [ 130.926548] ? switched_to_fair+0xb0/0xb0 [ 130.930681] ? __enqueue_entity+0x109/0x1e0 [ 130.934984] ? find_held_lock+0x35/0x1d0 [ 130.939034] ? get_signal+0x7ae/0x16c0 [ 130.942898] ? lock_downgrade+0x980/0x980 [ 130.947044] do_group_exit+0x149/0x400 [ 130.950906] ? do_raw_spin_trylock+0x190/0x190 [ 130.955459] ? SyS_exit+0x30/0x30 [ 130.958882] ? _raw_spin_unlock_irq+0x27/0x70 [ 130.963350] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 130.968340] get_signal+0x73f/0x16c0 [ 130.972043] ? ptrace_notify+0x130/0x130 [ 130.976081] ? __schedule+0x8f3/0x2060 [ 130.979944] ? __sched_text_start+0x8/0x8 [ 130.984072] do_signal+0x90/0x1eb0 [ 130.987580] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 130.993444] ? rcu_note_context_switch+0x710/0x710 [ 130.998347] ? setup_sigcontext+0x7d0/0x7d0 [ 131.002638] ? __might_sleep+0x95/0x190 [ 131.006586] ? schedule+0xf5/0x430 [ 131.010098] ? __schedule+0x2060/0x2060 [ 131.014045] ? selinux_capable+0x40/0x40 [ 131.018084] ? lock_downgrade+0x980/0x980 [ 131.022208] ? exit_to_usermode_loop+0x8c/0x310 [ 131.026854] exit_to_usermode_loop+0x214/0x310 [ 131.031408] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 131.036923] ? trace_hardirqs_on+0xd/0x10 [ 131.041044] ? do_fast_syscall_32+0x156/0xf9d [ 131.045514] do_fast_syscall_32+0xbfd/0xf9d [ 131.049804] ? free_unref_page+0x9e0/0x9e0 [ 131.054022] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 131.059026] ? do_int80_syscall_32+0x9d0/0x9d0 [ 131.063593] ? syscall_return_slowpath+0x2ad/0x550 [ 131.068493] ? prepare_exit_to_usermode+0x340/0x340 [ 131.073483] ? sysret32_from_system_call+0x5/0x3b [ 131.078301] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 131.083119] entry_SYSENTER_compat+0x54/0x63 [ 131.087497] RIP: 0023:0xf7fb3c79 [ 131.090827] RSP: 002b:00000000f7f6d10c EFLAGS: 00000296 ORIG_RAX: 00000000000000f0 [ 131.098506] RAX: fffffffffffffe00 RBX: 000000000813b014 RCX: 0000000000000000 [ 131.105744] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 131.112988] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 131.120228] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 131.127474] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 131.135333] Dumping ftrace buffer: [ 131.138924] (ftrace buffer empty) [ 131.142600] Kernel Offset: disabled [ 131.146198] Rebooting in 86400 seconds..