[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 19.032470] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 23.076357] random: sshd: uninitialized urandom read (32 bytes read) [ 23.426772] random: sshd: uninitialized urandom read (32 bytes read) [ 24.139088] random: sshd: uninitialized urandom read (32 bytes read) [ 229.857213] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.38' (ECDSA) to the list of known hosts. [ 235.351437] random: sshd: uninitialized urandom read (32 bytes read) 2018/05/01 20:50:57 parsed 1 programs 2018/05/01 20:50:57 executed programs: 0 [ 235.940812] IPVS: ftp: loaded support on port[0] = 21 [ 235.975655] IPVS: ftp: loaded support on port[0] = 21 [ 235.983940] IPVS: ftp: loaded support on port[0] = 21 [ 235.984787] IPVS: ftp: loaded support on port[0] = 21 [ 235.995460] IPVS: ftp: loaded support on port[0] = 21 [ 235.995980] IPVS: ftp: loaded support on port[0] = 21 [ 236.009456] IPVS: ftp: loaded support on port[0] = 21 [ 236.025942] IPVS: ftp: loaded support on port[0] = 21 2018/05/01 20:51:02 executed programs: 410 2018/05/01 20:51:07 executed programs: 777 2018/05/01 20:51:12 executed programs: 1164 2018/05/01 20:51:17 executed programs: 1540 2018/05/01 20:51:22 executed programs: 1920 2018/05/01 20:51:27 executed programs: 2292 2018/05/01 20:51:32 executed programs: 2671 2018/05/01 20:51:37 executed programs: 3036 2018/05/01 20:51:42 executed programs: 3401 2018/05/01 20:51:47 executed programs: 3762 2018/05/01 20:51:52 executed programs: 4140 2018/05/01 20:51:57 executed programs: 4511 2018/05/01 20:52:02 executed programs: 4891 2018/05/01 20:52:07 executed programs: 5261 2018/05/01 20:52:12 executed programs: 5627 2018/05/01 20:52:17 executed programs: 6000 2018/05/01 20:52:22 executed programs: 6384 2018/05/01 20:52:27 executed programs: 6761 2018/05/01 20:52:32 executed programs: 7133 2018/05/01 20:52:37 executed programs: 7502 2018/05/01 20:52:42 executed programs: 7884 2018/05/01 20:52:47 executed programs: 8257 2018/05/01 20:52:52 executed programs: 8630 2018/05/01 20:52:57 executed programs: 9001 2018/05/01 20:53:02 executed programs: 9374 2018/05/01 20:53:07 executed programs: 9745 2018/05/01 20:53:12 executed programs: 10119 2018/05/01 20:53:17 executed programs: 10472 2018/05/01 20:53:22 executed programs: 10846 2018/05/01 20:53:27 executed programs: 11205 2018/05/01 20:53:32 executed programs: 11573 2018/05/01 20:53:37 executed programs: 11947 2018/05/01 20:53:42 executed programs: 12320 2018/05/01 20:53:47 executed programs: 12691 2018/05/01 20:53:52 executed programs: 13066 2018/05/01 20:53:57 executed programs: 13426 2018/05/01 20:54:02 executed programs: 13804 2018/05/01 20:54:07 executed programs: 14172 2018/05/01 20:54:12 executed programs: 14549 2018/05/01 20:54:17 executed programs: 14916 2018/05/01 20:54:22 executed programs: 15277 2018/05/01 20:54:27 executed programs: 15652 2018/05/01 20:54:32 executed programs: 16029 2018/05/01 20:54:37 executed programs: 16400 2018/05/01 20:54:42 executed programs: 16780 [ 461.520022] random: crng init done 2018/05/01 20:54:47 executed programs: 17154 2018/05/01 20:54:52 executed programs: 17532 2018/05/01 20:54:57 executed programs: 17898 2018/05/01 20:55:02 executed programs: 18282 2018/05/01 20:55:07 executed programs: 18650 2018/05/01 20:55:12 executed programs: 19021 2018/05/01 20:55:17 executed programs: 19398 2018/05/01 20:55:22 executed programs: 19786 2018/05/01 20:55:27 executed programs: 20147 2018/05/01 20:55:32 executed programs: 20511 2018/05/01 20:55:37 executed programs: 20876 2018/05/01 20:55:43 executed programs: 21263 2018/05/01 20:55:48 executed programs: 21642 2018/05/01 20:55:53 executed programs: 22034 2018/05/01 20:55:58 executed programs: 22397 2018/05/01 20:56:03 executed programs: 22765 2018/05/01 20:56:08 executed programs: 23149 2018/05/01 20:56:13 executed programs: 23530 2018/05/01 20:56:18 executed programs: 23906 2018/05/01 20:56:23 executed programs: 24285 2018/05/01 20:56:28 executed programs: 24657 2018/05/01 20:56:33 executed programs: 25022 2018/05/01 20:56:38 executed programs: 25363 [ 581.483481] kasan: CONFIG_KASAN_INLINE enabled [ 581.488632] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 581.496078] general protection fault: 0000 [#1] SMP KASAN [ 581.501623] Dumping ftrace buffer: [ 581.505289] (ftrace buffer empty) [ 581.509004] Modules linked in: [ 581.512232] CPU: 0 PID: 10637 Comm: syz-executor1 Not tainted 4.17.0-rc3+ #52 [ 581.519512] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 581.528897] RIP: 0010:lo_ioctl+0x1ae8/0x2130 [ 581.533319] RSP: 0018:ffff8801bd6dfc08 EFLAGS: 00010202 [ 581.538698] RAX: 0000000000000037 RBX: ffff8801d296db00 RCX: dffffc0000000000 [ 581.545984] RDX: 0000000000000000 RSI: ffffffff84b2cd57 RDI: 00000000000001b8 [ 581.553261] RBP: ffff8801bd6dfc80 R08: ffff8801c46943c0 R09: ffffed003b5c46c2 [ 581.560633] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000 [ 581.567927] R13: 0000000000000000 R14: ffff8801b58561a0 R15: ffff8801b58560c0 [ 581.575308] FS: 0000000000000000(0000) GS:ffff8801dae00000(0063) knlGS:00000000f7f2eb40 [ 581.583567] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 581.589460] CR2: 0000000008138024 CR3: 00000001d03df000 CR4: 00000000001406f0 [ 581.596754] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 581.604042] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 581.611317] Call Trace: [ 581.613926] lo_compat_ioctl+0xc1/0x170 [ 581.617905] ? lo_ioctl+0x2130/0x2130 [ 581.621715] compat_blkdev_ioctl+0x3c2/0x1b20 [ 581.626228] ? bfq_create_group_hierarchy+0x120/0x120 [ 581.631434] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 581.636982] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 581.642176] ? bfq_create_group_hierarchy+0x120/0x120 [ 581.647371] __ia32_compat_sys_ioctl+0x221/0x640 [ 581.652137] do_fast_syscall_32+0x345/0xf9b [ 581.656462] ? do_int80_syscall_32+0x880/0x880 [ 581.661073] ? _raw_spin_unlock_irq+0x27/0x70 [ 581.665576] ? finish_task_switch+0x1ca/0x810 [ 581.670105] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 581.675650] ? syscall_return_slowpath+0x30f/0x5c0 [ 581.680769] ? sysret32_from_system_call+0x5/0x46 [ 581.685617] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 581.690462] entry_SYSENTER_compat+0x70/0x7f [ 581.694886] RIP: 0023:0xf7f32cb9 [ 581.698240] RSP: 002b:00000000f7f2e0ac EFLAGS: 00000282 ORIG_RAX: 0000000000000036 [ 581.706043] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000004c00 [ 581.713403] RDX: 0000000000000003 RSI: 0000000000000000 RDI: 0000000000000000 [ 581.720671] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 581.727944] R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000 [ 581.735233] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 581.742521] Code: e8 03 80 3c 08 00 0f 85 2c 02 00 00 4d 8b ad f0 00 00 00 48 b9 00 00 00 00 00 fc ff df 49 8d bd b8 01 00 00 48 89 f8 48 c1 e8 03 <80> 3c 08 00 0f 85 f9 01 00 00 4d 8b ad b8 01 00 00 48 b9 00 00 [ 581.761788] RIP: lo_ioctl+0x1ae8/0x2130 RSP: ffff8801bd6dfc08 [ 581.767716] ---[ end trace a15583efe355602c ]--- [ 581.772502] Kernel panic - not syncing: Fatal exception [ 581.778579] Dumping ftrace buffer: [ 581.782122] (ftrace buffer empty) [ 581.785835] Kernel Offset: disabled [ 581.789449] Rebooting in 86400 seconds..