[....] Starting enhanced syslogd: rsyslogd[ 12.679846] audit: type=1400 audit(1515110333.553:5): 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 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: [ 19.436169] audit: type=1400 audit(1515110340.309:6): avc: denied { map } for pid=3484 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 '10.128.15.239' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 25.626919] audit: type=1400 audit(1515110346.500:7): avc: denied { map } for pid=3498 comm="syzkaller352160" path="/root/syzkaller352160483" 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing 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executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing 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executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 36.494227] WARNING: CPU: 1 PID: 13745 at sound/core/pcm_lib.c:1635 snd_pcm_hw_param_first+0x289/0x690 [ 36.503724] Kernel panic - not syncing: panic_on_warn set ... [ 36.503724] [ 36.511076] CPU: 1 PID: 13745 Comm: syzkaller352160 Not tainted 4.15.0-rc6+ #158 [ 36.518593] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.527932] Call Trace: [ 36.530508] dump_stack+0x194/0x257 [ 36.534131] ? arch_local_irq_restore+0x53/0x53 [ 36.538798] ? vsnprintf+0x1ed/0x1900 [ 36.542587] panic+0x1e4/0x41c [ 36.545751] ? refcount_error_report+0x214/0x214 [ 36.550475] ? show_regs_print_info+0x18/0x18 [ 36.554946] ? __warn+0x1c1/0x200 [ 36.558375] ? snd_pcm_hw_param_first+0x289/0x690 [ 36.563184] __warn+0x1dc/0x200 [ 36.566433] ? snd_pcm_hw_param_first+0x289/0x690 [ 36.571246] report_bug+0x211/0x2d0 [ 36.574852] fixup_bug.part.11+0x37/0x80 [ 36.578883] do_error_trap+0x2d7/0x3e0 [ 36.582738] ? snd_pcm_oss_release+0x20b/0x280 [ 36.587289] ? __fput+0x327/0x7e0 [ 36.590711] ? ____fput+0x15/0x20 [ 36.594135] ? math_error+0x400/0x400 [ 36.597908] ? exit_to_usermode_loop+0x214/0x310 [ 36.602631] ? do_fast_syscall_32+0xbfd/0xf9d [ 36.607098] ? entry_SYSENTER_compat+0x54/0x63 [ 36.611650] ? check_noncircular+0x20/0x20 [ 36.615854] ? print_irqtrace_events+0x270/0x270 [ 36.620582] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 36.625398] do_invalid_op+0x1b/0x20 [ 36.629079] invalid_op+0x22/0x40 [ 36.632501] RIP: 0010:snd_pcm_hw_param_first+0x289/0x690 [ 36.637918] RSP: 0018:ffff8801ceb1ed40 EFLAGS: 00010293 [ 36.643251] RAX: ffff8801cded43c0 RBX: ffff8801cdf06040 RCX: ffffffff841bf1a9 [ 36.650489] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: ffffed0039d63da0 [ 36.657726] RBP: ffff8801ceb1ed90 R08: ffffed0039d63cd7 R09: ffff8801ceb1e6b0 [ 36.664964] R10: 0000000000000001 R11: ffffed0039d63cd6 R12: 000000000000000d [ 36.672202] R13: 00000000ffffffea R14: 0000000000000005 R15: 0000000000002000 [ 36.679453] ? snd_pcm_hw_param_first+0x289/0x690 [ 36.684283] snd_pcm_hw_param_near.constprop.27+0x78d/0x9a0 [ 36.689972] ? _snd_pcm_hw_param_set.constprop.26+0x6f0/0x6f0 [ 36.695827] ? snd_pcm_plugin_free+0xb1/0xe0 [ 36.700213] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 36.705199] ? trace_hardirqs_on+0xd/0x10 [ 36.709321] ? snd_pcm_plug_slave_size+0x148/0x2c0 [ 36.714225] snd_pcm_oss_change_params+0x17d3/0x3720 [ 36.719330] ? snd_pcm_hw_param_near.constprop.27+0x9a0/0x9a0 [ 36.725180] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 36.730338] ? lock_downgrade+0x980/0x980 [ 36.734471] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 36.739631] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 36.744797] ? rcutorture_record_progress+0x10/0x10 [ 36.749790] ? is_bpf_text_address+0xa4/0x120 [ 36.754254] ? kernel_text_address+0x102/0x140 [ 36.758808] ? __kernel_text_address+0xd/0x40 [ 36.763273] ? unwind_get_return_address+0x61/0xa0 [ 36.768176] ? check_noncircular+0x20/0x20 [ 36.772401] snd_pcm_oss_make_ready+0xaa/0x130 [ 36.776956] snd_pcm_oss_sync+0x34b/0x830 [ 36.781077] ? snd_pcm_oss_sync1+0x550/0x550 [ 36.785458] ? fsnotify_first_mark+0x2b0/0x2b0 [ 36.790027] snd_pcm_oss_release+0x20b/0x280 [ 36.794411] ? snd_pcm_oss_sync+0x830/0x830 [ 36.798702] __fput+0x327/0x7e0 [ 36.801960] ? fput+0x140/0x140 [ 36.805212] ? _raw_spin_unlock_irq+0x27/0x70 [ 36.809685] ____fput+0x15/0x20 [ 36.812933] task_work_run+0x199/0x270 [ 36.816792] ? task_work_cancel+0x210/0x210 [ 36.821085] ? _raw_spin_unlock+0x22/0x30 [ 36.825202] ? switch_task_namespaces+0x87/0xc0 [ 36.829852] do_exit+0x9bb/0x1ad0 [ 36.833275] ? find_held_lock+0x35/0x1d0 [ 36.837309] ? mm_update_next_owner+0x930/0x930 [ 36.841948] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 36.847108] ? lock_downgrade+0x980/0x980 [ 36.851228] ? __unqueue_futex+0x1c0/0x290 [ 36.855437] ? lock_release+0xa40/0xa40 [ 36.859381] ? fault_in_user_writeable+0x90/0x90 [ 36.864108] ? do_raw_spin_trylock+0x190/0x190 [ 36.868750] ? futex_wake+0x680/0x680 [ 36.872530] ? drop_futex_key_refs.isra.12+0x63/0xb0 [ 36.877604] ? futex_wait+0x6a9/0x9a0 [ 36.881385] ? check_noncircular+0x20/0x20 [ 36.885589] ? switched_to_fair+0xb0/0xb0 [ 36.889711] ? __enqueue_entity+0x109/0x1e0 [ 36.894029] ? find_held_lock+0x35/0x1d0 [ 36.898068] ? get_signal+0x7ae/0x16c0 [ 36.901924] ? lock_downgrade+0x980/0x980 [ 36.906051] do_group_exit+0x149/0x400 [ 36.909908] ? do_raw_spin_trylock+0x190/0x190 [ 36.914459] ? SyS_exit+0x30/0x30 [ 36.917887] ? _raw_spin_unlock_irq+0x27/0x70 [ 36.922352] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 36.927341] get_signal+0x73f/0x16c0 [ 36.931039] ? ptrace_notify+0x130/0x130 [ 36.935074] ? __schedule+0x8f3/0x2060 [ 36.939114] ? __sched_text_start+0x8/0x8 [ 36.943244] do_signal+0x90/0x1eb0 [ 36.946756] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 36.952612] ? rcu_note_context_switch+0x710/0x710 [ 36.957512] ? setup_sigcontext+0x7d0/0x7d0 [ 36.961805] ? __might_sleep+0x95/0x190 [ 36.965754] ? schedule+0xf5/0x430 [ 36.969264] ? __schedule+0x2060/0x2060 [ 36.973213] ? selinux_capable+0x40/0x40 [ 36.977245] ? handle_mm_fault+0x410/0x8d0 [ 36.981449] ? memset+0x31/0x40 [ 36.984705] ? exit_to_usermode_loop+0x8c/0x310 [ 36.989349] exit_to_usermode_loop+0x214/0x310 [ 36.993901] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 36.999409] ? do_fast_syscall_32+0x156/0xf9d [ 37.003879] do_fast_syscall_32+0xbfd/0xf9d [ 37.008177] ? do_int80_syscall_32+0x9d0/0x9d0 [ 37.012738] ? syscall_return_slowpath+0x2ad/0x550 [ 37.017635] ? prepare_exit_to_usermode+0x340/0x340 [ 37.022623] ? sysret32_from_system_call+0x5/0x3b [ 37.027439] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 37.032258] entry_SYSENTER_compat+0x54/0x63 [ 37.036632] RIP: 0023:0xf7f6ec79 [ 37.039964] RSP: 002b:00000000f7f491ec EFLAGS: 00000296 ORIG_RAX: 00000000000000f0 [ 37.047639] RAX: fffffffffffffe00 RBX: 00000000080faff4 RCX: 0000000000000000 [ 37.054877] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000080faff4 [ 37.062114] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 [ 37.069351] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 37.076588] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 37.084022] Dumping ftrace buffer: [ 37.087583] (ftrace buffer empty) [ 37.091262] Kernel Offset: disabled [ 37.094855] Rebooting in 86400 seconds..