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 '10.128.10.54' (ECDSA) to the list of known hosts. 2018/05/05 17:17:52 parsed 1 programs 2018/05/05 17:17:52 executed programs: 0 syzkaller login: [ 90.864830] IPVS: ftp: loaded support on port[0] = 21 [ 90.917952] IPVS: ftp: loaded support on port[0] = 21 [ 90.994680] IPVS: ftp: loaded support on port[0] = 21 [ 91.115125] IPVS: ftp: loaded support on port[0] = 21 [ 91.258739] IPVS: ftp: loaded support on port[0] = 21 [ 91.412811] IPVS: ftp: loaded support on port[0] = 21 [ 91.712981] IPVS: ftp: loaded support on port[0] = 21 [ 91.989325] IPVS: ftp: loaded support on port[0] = 21 2018/05/05 17:17:57 executed programs: 64 [ 98.094407] BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 [ 98.102700] IP: memcpy_erms+0x6/0x10 [ 98.106445] PGD 80000001c199f067 P4D 80000001c199f067 PUD 19911f067 PMD 0 [ 98.113552] Oops: 0000 [#1] SMP PTI [ 98.117968] Dumping ftrace buffer: [ 98.121662] (ftrace buffer empty) [ 98.125404] Modules linked in: [ 98.128663] CPU: 1 PID: 5091 Comm: syz-executor0 Not tainted 4.16.0+ #87 [ 98.135534] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 98.144963] RIP: 0010:memcpy_erms+0x6/0x10 [ 98.149222] RSP: 0018:ffff8801949ff628 EFLAGS: 00010286 [ 98.154636] RAX: ffff8801949ff7c8 RBX: 0000000000000001 RCX: 0000000000000001 [ 98.161953] RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff8801949ff7c8 [ 98.169333] RBP: ffff8801949ff670 R08: 0000000001080000 R09: 0000000000000000 [ 98.176646] R10: 0000000000000000 R11: ffff8801c309a000 R12: 0000000000000000 [ 98.183964] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8801949ff7c8 [ 98.191353] FS: 00007f6ff5e11700(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000 [ 98.199624] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 98.205537] CR2: 0000000000000000 CR3: 00000001bf430000 CR4: 00000000001406e0 [ 98.212845] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 98.220152] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 98.227448] Call Trace: [ 98.230119] ? __msan_memcpy+0x1f/0x160 [ 98.234218] linear_transfer+0x6a1/0xbe0 [ 98.238374] ? snd_pcm_plugin_build_linear+0xc30/0xc30 [ 98.243730] snd_pcm_plug_write_transfer+0x586/0xc00 [ 98.249009] snd_pcm_oss_write2+0x29c/0xa70 [ 98.253442] snd_pcm_oss_sync1+0x223/0x650 [ 98.257938] ? arch_local_irq_disable+0x10/0x10 [ 98.262904] snd_pcm_oss_sync+0x7b1/0x1540 [ 98.267245] snd_pcm_oss_release+0x13a/0x4c0 [ 98.271726] __fput+0x49e/0xa10 [ 98.275104] ____fput+0x37/0x40 [ 98.278464] ? fput+0x2e0/0x2e0 [ 98.281800] task_work_run+0x243/0x2c0 [ 98.285761] prepare_exit_to_usermode+0x33c/0x3a0 [ 98.290677] syscall_return_slowpath+0xe9/0x700 [ 98.295456] ? fput+0x2a3/0x2e0 [ 98.298851] ? SYSC_write+0x2f0/0x360 [ 98.302774] do_syscall_64+0x36d/0x430 [ 98.306731] ? SYSC_read+0x360/0x360 [ 98.310478] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 98.315707] RIP: 0033:0x455979 [ 98.318924] RSP: 002b:00007f6ff5e10c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 98.326684] RAX: 0000000000000001 RBX: 00007f6ff5e116d4 RCX: 0000000000455979 [ 98.333985] RDX: 0000000000000001 RSI: 0000000020000040 RDI: 0000000000000003 [ 98.341290] RBP: 000000000072bf50 R08: 0000000000000000 R09: 0000000000000000 [ 98.348598] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 98.355904] R13: 0000000000000713 R14: 00000000006fea68 R15: 0000000000000001 [ 98.363205] Code: 90 90 90 90 90 eb 1e 0f 1f 00 48 89 f8 48 89 d1 48 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 c3 66 0f 1f 44 00 00 48 89 f8 48 89 d1 a4 c3 0f 1f 80 00 00 00 00 48 89 f8 48 83 fa 20 72 7e 40 38 [ 98.382875] RIP: memcpy_erms+0x6/0x10 RSP: ffff8801949ff628 [ 98.388621] CR2: 0000000000000000 [ 98.392456] ---[ end trace 991288c89b8138b9 ]--- [ 98.397342] Kernel panic - not syncing: Fatal exception [ 98.403484] Dumping ftrace buffer: [ 98.407046] (ftrace buffer empty) [ 98.410746] Kernel Offset: disabled [ 98.414375] Rebooting in 86400 seconds..