INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.5' (ECDSA) to the list of known hosts. 2018/04/10 20:20:13 parsed 1 programs 2018/04/10 20:20:13 executed programs: 0 syzkaller login: [ 28.301259] IPVS: ftp: loaded support on port[0] = 21 [ 28.324608] IPVS: ftp: loaded support on port[0] = 21 [ 28.359086] IPVS: ftp: loaded support on port[0] = 21 [ 28.389199] IPVS: ftp: loaded support on port[0] = 21 [ 28.429300] IPVS: ftp: loaded support on port[0] = 21 [ 28.492712] IPVS: ftp: loaded support on port[0] = 21 [ 28.570357] IPVS: ftp: loaded support on port[0] = 21 [ 28.629091] IPVS: ftp: loaded support on port[0] = 21 [ 31.990100] BUG: unable to handle kernel paging request at ffffc90004cc7000 [ 31.997237] PGD 1dad42067 P4D 1dad42067 PUD 1dad43067 PMD 1c5cb3067 PTE 0 [ 32.004173] Oops: 0002 [#1] SMP KASAN [ 32.007959] Dumping ftrace buffer: [ 32.011483] (ftrace buffer empty) [ 32.015179] Modules linked in: [ 32.018361] CPU: 0 PID: 5516 Comm: syz-executor3 Not tainted 4.16.0+ #288 [ 32.025269] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.034624] RIP: 0010:memset_erms+0x9/0x10 [ 32.038830] RSP: 0018:ffff8801d7fc7368 EFLAGS: 00010246 [ 32.044164] RAX: fffff520009b9600 RBX: ffffc90004cc7000 RCX: 0000000000104500 [ 32.051407] RDX: 0000000000104500 RSI: 0000000000000000 RDI: ffffc90004cc7000 [ 32.058647] RBP: ffff8801d7fc7388 R08: 0000000000000000 R09: ffffc90004cc7000 [ 32.065888] R10: 00000000000208a0 R11: fffff520009b969f R12: 0000000000104500 [ 32.073127] R13: 0000000000000000 R14: ffffffff88c9185c R15: 0000000000000010 [ 32.080369] FS: 0000000000000000(0000) GS:ffff8801db000000(0063) knlGS:00000000f7f5fb40 [ 32.088565] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 32.094419] CR2: ffffc90004cc7000 CR3: 00000001d765c000 CR4: 00000000001406f0 [ 32.101765] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 32.109006] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 32.116247] Call Trace: [ 32.118810] ? memset+0x31/0x40 [ 32.122071] snd_pcm_format_set_silence+0x13f/0x4b0 [ 32.127060] loopback_prepare+0x92b/0xbf0 [ 32.131181] snd_pcm_do_prepare+0x58/0x90 [ 32.135298] snd_pcm_action_single+0x70/0x110 [ 32.139764] snd_pcm_action_nonatomic+0x95/0xa0 [ 32.144404] snd_pcm_prepare+0x115/0x1a0 [ 32.148435] snd_pcm_kernel_ioctl+0x97/0x240 [ 32.152815] snd_pcm_oss_prepare+0x49/0x150 [ 32.157108] snd_pcm_oss_make_ready+0xf9/0x130 [ 32.161663] snd_pcm_oss_set_trigger+0x384/0x930 [ 32.166389] ? kasan_check_write+0x14/0x20 [ 32.170594] ? do_raw_spin_lock+0xc1/0x230 [ 32.174800] ? snd_pcm_oss_make_ready+0x130/0x130 [ 32.179615] ? snd_pcm_stream_unlock_irq+0x78/0xe0 [ 32.184515] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 32.189502] snd_pcm_oss_poll+0x7aa/0xd60 [ 32.193623] ? snd_pcm_oss_set_trigger+0x930/0x930 [ 32.198526] ? __check_object_size+0x8b/0x530 [ 32.202996] ? __might_sleep+0x95/0x190 [ 32.206946] do_sys_poll+0x719/0x1050 [ 32.210717] ? do_sys_poll+0x719/0x1050 [ 32.214664] ? snd_pcm_oss_set_trigger+0x930/0x930 [ 32.219566] ? compat_core_sys_select+0x9e0/0x9e0 [ 32.224382] ? do_futex+0x86f/0x22a0 [ 32.228070] ? rcu_report_exp_cpu_mult+0x480/0x480 [ 32.232972] ? exit_robust_list+0x240/0x240 [ 32.237266] ? unwind_get_return_address+0x61/0xa0 [ 32.242166] ? __save_stack_trace+0x7e/0xd0 [ 32.246461] ? save_stack+0xa3/0xd0 [ 32.250067] ? save_stack+0x43/0xd0 [ 32.253663] ? __kasan_slab_free+0x11a/0x170 [ 32.258043] ? kasan_slab_free+0xe/0x10 [ 32.261988] ? lock_release+0xa40/0xa40 [ 32.265933] ? kasan_check_read+0x11/0x20 [ 32.270054] ? do_raw_spin_unlock+0x9e/0x310 [ 32.274434] ? do_raw_spin_trylock+0x1a0/0x1a0 [ 32.278988] ? kasan_check_write+0x14/0x20 [ 32.283192] ? do_raw_spin_lock+0xc1/0x230 [ 32.287397] ? trace_hardirqs_off+0xd/0x10 [ 32.291601] ? _raw_spin_unlock_irqrestore+0xa6/0xc0 [ 32.296678] ? debug_check_no_obj_freed+0x2f8/0x633 [ 32.301665] ? kasan_check_read+0x11/0x20 [ 32.305785] ? rcu_is_watching+0x85/0x130 [ 32.309902] ? rcu_pm_notify+0xc0/0xc0 [ 32.313761] ? trace_hardirqs_off+0xd/0x10 [ 32.317967] ? putname+0xee/0x130 [ 32.321389] ? putname+0xee/0x130 [ 32.324812] ? rcu_read_lock_sched_held+0x108/0x120 [ 32.329800] ? kmem_cache_free+0x258/0x2a0 [ 32.334006] ? poll_select_set_timeout+0x12f/0x210 [ 32.338910] ? do_restart_poll+0x2a0/0x2a0 [ 32.343116] ? compat_SyS_futex+0x288/0x380 [ 32.347408] SyS_poll+0x10d/0x450 [ 32.350832] ? SyS_poll+0x10d/0x450 [ 32.354432] ? SyS_pselect6+0x650/0x650 [ 32.358381] ? do_fast_syscall_32+0x156/0xf9f [ 32.362849] ? SyS_pselect6+0x650/0x650 [ 32.366794] do_fast_syscall_32+0x3ec/0xf9f [ 32.371090] ? do_int80_syscall_32+0x9c0/0x9c0 [ 32.375642] ? finish_task_switch+0x1b9/0x970 [ 32.380109] ? finish_task_switch+0x17a/0x970 [ 32.384576] ? syscall_return_slowpath+0x2ac/0x550 [ 32.389476] ? prepare_exit_to_usermode+0x350/0x350 [ 32.394462] ? sysret32_from_system_call+0x5/0x3c [ 32.399275] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 32.404091] entry_SYSENTER_compat+0x70/0x7f [ 32.408470] RIP: 0023:0xf7f63c99 [ 32.411804] RSP: 002b:00000000f7f5f0ac EFLAGS: 00000282 ORIG_RAX: 00000000000000a8 [ 32.419484] RAX: ffffffffffffffda RBX: 0000000020000100 RCX: 0000000000000001 [ 32.426724] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 32.433964] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 32.441203] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 32.448443] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 32.455687] Code: 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 f3 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 49 89 f9 40 88 f0 48 89 d1 aa 4c 89 c8 c3 90 49 89 fa 40 0f b6 ce 48 b8 01 01 01 01 01 [ 32.474785] RIP: memset_erms+0x9/0x10 RSP: ffff8801d7fc7368 [ 32.480466] CR2: ffffc90004cc7000 [ 32.483895] ---[ end trace 95a476f9da224f32 ]--- [ 32.488622] Kernel panic - not syncing: Fatal exception [ 32.494328] Dumping ftrace buffer: [ 32.497840] (ftrace buffer empty) [ 32.501518] Kernel Offset: disabled [ 32.505112] Rebooting in 86400 seconds..