[....] Starting enhanced syslogd: rsyslogd[ 11.760701] audit: type=1400 audit(1514977969.819:5): 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 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: [ 16.922984] audit: type=1400 audit(1514977974.981:6): avc: denied { map } for pid=3479 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 '10.128.0.45' (ECDSA) to the list of known hosts. executing program [ 23.132595] audit: type=1400 audit(1514977981.191:7): avc: denied { map } for pid=3493 comm="syzkaller036169" path="/root/syzkaller036169051" 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 [ 23.649931] WARNING: CPU: 1 PID: 3493 at sound/core/pcm_lib.c:1635 snd_pcm_hw_param_first+0x289/0x690 [ 23.659329] Kernel panic - not syncing: panic_on_warn set ... [ 23.659329] [ 23.666667] CPU: 1 PID: 3493 Comm: syzkaller036169 Not tainted 4.15.0-rc6+ #155 [ 23.674085] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 23.683405] Call Trace: [ 23.685966] dump_stack+0x194/0x257 [ 23.689565] ? arch_local_irq_restore+0x53/0x53 [ 23.694219] ? vsnprintf+0x1ed/0x1900 [ 23.697996] panic+0x1e4/0x41c [ 23.701157] ? refcount_error_report+0x214/0x214 [ 23.705880] ? show_regs_print_info+0x18/0x18 [ 23.710349] ? __warn+0x1c1/0x200 [ 23.713777] ? snd_pcm_hw_param_first+0x289/0x690 [ 23.718594] __warn+0x1dc/0x200 [ 23.721845] ? snd_pcm_hw_param_first+0x289/0x690 [ 23.726660] report_bug+0x211/0x2d0 [ 23.730261] fixup_bug.part.11+0x37/0x80 [ 23.734290] do_error_trap+0x2d7/0x3e0 [ 23.738145] ? snd_pcm_oss_release+0x20b/0x280 [ 23.742694] ? __fput+0x327/0x7e0 [ 23.746115] ? ____fput+0x15/0x20 [ 23.749547] ? math_error+0x400/0x400 [ 23.753316] ? entry_SYSENTER_compat+0x54/0x63 [ 23.757867] ? check_noncircular+0x20/0x20 [ 23.762071] ? print_irqtrace_events+0x270/0x270 [ 23.766797] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 23.771611] do_invalid_op+0x1b/0x20 [ 23.775297] invalid_op+0x22/0x40 [ 23.778739] RIP: 0010:snd_pcm_hw_param_first+0x289/0x690 [ 23.784170] RSP: 0018:ffff8801c02df1a0 EFLAGS: 00010293 [ 23.789516] RAX: ffff8801c5460680 RBX: ffff8801c0acbb00 RCX: ffffffff841beea9 [ 23.796757] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: ffffed003805be28 [ 23.803996] RBP: ffff8801c02df1f0 R08: ffffed003805bd63 R09: ffff8801c02deb10 [ 23.811237] R10: 0000000000000001 R11: ffffed003805bd62 R12: 000000000000000d [ 23.818475] R13: 00000000ffffffea R14: 0000000000000005 R15: 0000000000002000 [ 23.825737] ? snd_pcm_hw_param_first+0x289/0x690 [ 23.830566] snd_pcm_hw_param_near.constprop.27+0x78d/0x9a0 [ 23.836255] ? _snd_pcm_hw_param_set.constprop.26+0x6f0/0x6f0 [ 23.842111] ? snd_pcm_plugin_free+0xb1/0xe0 [ 23.846490] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 23.851474] ? trace_hardirqs_on+0xd/0x10 [ 23.855590] ? snd_pcm_plug_slave_size+0x148/0x2c0 [ 23.860491] snd_pcm_oss_change_params+0x17d3/0x3720 [ 23.865581] ? snd_pcm_hw_param_near.constprop.27+0x9a0/0x9a0 [ 23.871434] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 23.876605] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 23.881762] ? depot_save_stack+0x3b5/0x490 [ 23.886054] ? lock_downgrade+0x980/0x980 [ 23.890178] ? lock_release+0xa40/0xa40 [ 23.894124] ? is_bpf_text_address+0xa4/0x120 [ 23.898587] ? do_raw_spin_trylock+0x190/0x190 [ 23.903139] ? __kernel_text_address+0xd/0x40 [ 23.907604] ? unwind_get_return_address+0x61/0xa0 [ 23.912507] ? check_noncircular+0x20/0x20 [ 23.916723] snd_pcm_oss_make_ready+0xaa/0x130 [ 23.921276] snd_pcm_oss_sync+0x257/0x830 [ 23.925396] ? snd_pcm_oss_sync1+0x550/0x550 [ 23.929776] ? fsnotify_first_mark+0x2b0/0x2b0 [ 23.934332] snd_pcm_oss_release+0x20b/0x280 [ 23.938709] ? snd_pcm_oss_sync+0x830/0x830 [ 23.942998] __fput+0x327/0x7e0 [ 23.946257] ? fput+0x140/0x140 [ 23.949507] ? _raw_spin_unlock_irq+0x27/0x70 [ 23.953976] ____fput+0x15/0x20 [ 23.957225] task_work_run+0x199/0x270 [ 23.961084] ? task_work_cancel+0x210/0x210 [ 23.965372] ? _raw_spin_unlock+0x22/0x30 [ 23.969488] ? switch_task_namespaces+0x87/0xc0 [ 23.974129] do_exit+0x9bb/0x1ad0 [ 23.977552] ? __handle_mm_fault+0x2330/0x3ce0 [ 23.983586] ? mm_update_next_owner+0x930/0x930 [ 23.988660] ? __might_fault+0x188/0x1d0 [ 23.992706] ? do_raw_spin_trylock+0x190/0x190 [ 23.997268] ? check_noncircular+0x20/0x20 [ 24.001480] ? _raw_spin_unlock+0x22/0x30 [ 24.005598] ? __handle_mm_fault+0x80e/0x3ce0 [ 24.010065] ? check_noncircular+0x20/0x20 [ 24.014267] ? __pmd_alloc+0x4e0/0x4e0 [ 24.018127] ? find_held_lock+0x35/0x1d0 [ 24.022162] ? handle_mm_fault+0x248/0x8d0 [ 24.026367] ? find_held_lock+0x35/0x1d0 [ 24.030405] ? __do_page_fault+0x5f7/0xc90 [ 24.034607] ? lock_downgrade+0x980/0x980 [ 24.039428] ? handle_mm_fault+0x410/0x8d0 [ 24.044585] ? down_read_trylock+0xdb/0x170 [ 24.048872] ? __do_page_fault+0x32d/0xc90 [ 24.053074] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 24.057627] ? vmacache_find+0x5f/0x280 [ 24.061574] do_group_exit+0x149/0x400 [ 24.065429] ? __do_page_fault+0x3d6/0xc90 [ 24.069638] ? SyS_exit+0x30/0x30 [ 24.073067] ? do_fast_syscall_32+0x156/0xf9d [ 24.077530] ? do_group_exit+0x400/0x400 [ 24.082529] SyS_exit_group+0x1d/0x20 [ 24.086300] do_fast_syscall_32+0x3ee/0xf9d [ 24.090593] ? do_int80_syscall_32+0x9d0/0x9d0 [ 24.095143] ? kasan_check_read+0x11/0x20 [ 24.099259] ? syscall_return_slowpath+0x550/0x550 [ 24.104155] ? SyS_rt_sigaction+0x94/0x1b0 [ 24.108357] ? SyS_sigprocmask+0x4b0/0x4b0 [ 24.112561] ? SyS_read+0x184/0x220 [ 24.116157] ? retint_user+0x18/0x18 [ 24.119843] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 24.124656] entry_SYSENTER_compat+0x54/0x63 [ 24.129032] RIP: 0023:0xf7f1bc79 [ 24.132361] RSP: 002b:00000000ff97ad5c EFLAGS: 00000296 ORIG_RAX: 00000000000000fc [ 24.140035] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000080f0298 [ 24.147277] RDX: 0000000000000000 RSI: 00000000080d9a98 RDI: 00000000080f02a0 [ 24.154514] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 [ 24.161749] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 24.168984] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 24.176764] Dumping ftrace buffer: [ 24.180333] (ftrace buffer empty) [ 24.184009] Kernel Offset: disabled [ 24.187605] Rebooting in 86400 seconds..