[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 12.912543] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 27.908430] random: sshd: uninitialized urandom read (32 bytes read) [ 28.398552] random: sshd: uninitialized urandom read (32 bytes read) [ 28.738666] random: sshd: uninitialized urandom read (32 bytes read) [ 106.313440] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.39' (ECDSA) to the list of known hosts. [ 111.717032] random: sshd: uninitialized urandom read (32 bytes read) 2018/08/05 12:25:54 parsed 1 programs [ 112.993426] random: cc1: uninitialized urandom read (8 bytes read) INIT: Id "5" respawning too fast: disabled for 5 minutes INIT: Id "4" respawning too fast: disabled for 5 minutes INIT: Id "3" respawning too fast: disabled for 5 minutes INIT: Id "6" respawning too fast: disabled for 5 minutes INIT: Id "1" respawning too fast: disabled for 5 minutes INIT: Id "2" respawning too fast: disabled for 5 minutes 2018/08/05 12:25:56 executed programs: 0 [ 114.004305] IPVS: Creating netns size=2536 id=1 [ 114.035044] IPVS: Creating netns size=2536 id=2 [ 114.073531] IPVS: Creating netns size=2536 id=3 [ 114.107666] IPVS: Creating netns size=2536 id=4 [ 114.152643] IPVS: Creating netns size=2536 id=5 [ 114.187840] IPVS: Creating netns size=2536 id=6 [ 114.223276] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 114.224937] IPVS: Creating netns size=2536 id=7 [ 114.250461] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 114.284436] IPVS: Creating netns size=2536 id=8 [ 114.357405] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 114.373359] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 114.385764] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 114.413448] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 114.445934] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 114.475424] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 114.514615] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 114.523476] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 114.535064] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 114.550591] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 114.563053] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 114.577911] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 114.613183] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 114.647820] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 114.662415] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 114.673945] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 114.693151] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 114.701755] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 114.711433] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 114.722396] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 114.734108] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 114.741747] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 114.749194] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 114.760479] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 114.769326] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 114.795956] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 114.806328] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 114.827043] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 114.836664] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 114.862949] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 114.880732] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 114.891373] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 114.906717] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 114.918517] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 114.928617] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 114.938206] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 114.945948] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 114.955773] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 114.963169] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 114.970441] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 114.987236] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 114.996033] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 115.010988] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 115.032509] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 115.074705] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 115.114586] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 115.127852] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 115.138581] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 115.146888] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 115.157694] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 115.167636] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 115.180227] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 115.189732] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 115.197909] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 115.206643] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 115.216541] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 115.224399] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 115.232580] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 115.245746] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 115.254539] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 115.262116] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 115.270411] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 115.277860] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 115.285272] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 115.296038] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 115.305687] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 115.315645] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 115.325053] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 115.332970] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 115.340537] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 115.385252] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 115.414243] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 115.432495] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 115.445751] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 115.454152] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 115.468086] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 115.482412] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 115.493571] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 117.212646] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 117.302059] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 117.353238] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 117.374481] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 117.383657] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 117.453691] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 117.464829] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 117.472863] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 117.537686] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 117.673423] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 117.696782] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 117.705640] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 117.747645] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 117.777409] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 117.860090] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 117.876763] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 117.889795] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 117.896544] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 117.915666] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 117.923645] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 117.933749] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 117.945112] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 118.007807] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 118.014093] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 118.021296] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 118.054099] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 118.069683] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 118.077421] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 118.086224] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 118.178207] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 118.190339] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 118.197029] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready 2018/08/05 12:26:01 executed programs: 24 2018/08/05 12:26:06 executed programs: 485 [ 126.059536] kasan: CONFIG_KASAN_INLINE enabled [ 126.064343] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 126.076885] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 126.083136] Dumping ftrace buffer: [ 126.086667] (ftrace buffer empty) [ 126.090367] Modules linked in: [ 126.093701] CPU: 0 PID: 9351 Comm: syz-executor6 Not tainted 4.9.117-g8b21e85 #71 [ 126.101313] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 126.110662] task: ffff8801d3dcc800 task.stack: ffff8801cf4a0000 [ 126.116705] RIP: 0010:[] [] loop_validate_file+0x20d/0x400 [ 126.125694] RSP: 0018:ffff8801cf4a7ae0 EFLAGS: 00010206 [ 126.131138] RAX: 0000000000000036 RBX: dffffc0000000000 RCX: ffff8801d3dcc800 [ 126.138394] RDX: 0000000000000000 RSI: ffffffff825c6b9d RDI: 00000000000001b0 [ 126.145655] RBP: ffff8801cf4a7af8 R08: ffff8801d3dcd110 R09: 0000000000000001 [ 126.152918] R10: 0000000000000000 R11: 1ffff1003a7b9a1d R12: 0000000000000000 [ 126.160179] R13: ffff8801d61ca280 R14: ffff8801d61ca280 R15: ffff8801d386e9d8 [ 126.167444] FS: 00007f025048c700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 126.175661] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 126.181530] CR2: 00007ffc5ac36488 CR3: 00000001cd4d8000 CR4: 00000000001606f0 [ 126.188792] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 126.196057] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 126.203312] Stack: [ 126.205449] ffff8801d386e880 ffff8801d01f9000 0000000000000004 ffff8801cf4a7b80 [ 126.213494] ffffffff825cc31d ffff8801cf4a7d38 ffffffff8153af09 0000000000930000 [ 126.221543] ffff8801d386e898 ffff8801cf4a7b80 0000004c0000000b 1ffff10039e94f6c [ 126.229597] Call Trace: [ 126.232179] [] lo_ioctl+0x3ed/0x1690 [ 126.237534] [] ? save_stack+0xa9/0xd0 [ 126.243009] [] ? loop_lookup.part.19+0x110/0x110 [ 126.249391] [] blkdev_ioctl+0x7b6/0x1a70 [ 126.255079] [] ? blkpg_ioctl+0x920/0x920 [ 126.260772] [] ? __lock_acquire+0x654/0x4070 [ 126.266816] [] ? exit_robust_list+0x220/0x220 [ 126.272942] [] block_ioctl+0xde/0x120 [ 126.278367] [] ? blkdev_fallocate+0x440/0x440 [ 126.284485] [] do_vfs_ioctl+0x1ac/0x11a0 [ 126.290169] [] ? ioctl_preallocate+0x220/0x220 [ 126.296385] [] ? selinux_capable+0x40/0x40 [ 126.302249] [] ? __fget+0x20a/0x3b0 [ 126.307506] [] ? __fget+0x231/0x3b0 [ 126.312755] [] ? __fget+0x47/0x3b0 [ 126.317920] [] ? security_file_ioctl+0x8f/0xc0 [ 126.324131] [] SyS_ioctl+0x8f/0xc0 [ 126.329300] [] ? do_vfs_ioctl+0x11a0/0x11a0 [ 126.335245] [] do_syscall_64+0x1a6/0x490 [ 126.340931] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 126.347827] Code: 00 00 00 48 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 f7 01 00 00 4d 8b a4 24 f0 00 00 00 49 8d bc 24 b0 01 00 00 48 89 f8 48 c1 e8 03 <80> 3c 18 00 0f 85 cc 01 00 00 4d 8b a4 24 b0 01 00 00 4c 89 e0 [ 126.374739] RIP [] loop_validate_file+0x20d/0x400 [ 126.381327] RSP [ 126.387882] ---[ end trace 14ea1886091ce31c ]--- [ 126.393829] Kernel panic - not syncing: Fatal exception [ 126.399635] Dumping ftrace buffer: [ 126.403156] (ftrace buffer empty) [ 126.406840] Kernel Offset: disabled [ 126.410438] Rebooting in 86400 seconds..