[ 14.426542] random: sshd: uninitialized urandom read (32 bytes read, 31 bits of entropy available) [....] 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: [ 18.492329] random: sshd: uninitialized urandom read (32 bytes read, 36 bits of entropy available) [ 18.759671] random: sshd: uninitialized urandom read (32 bytes read, 36 bits of entropy available) [ 19.479489] random: sshd: uninitialized urandom read (32 bytes read, 95 bits of entropy available) [ 35.772173] random: sshd: uninitialized urandom read (32 bytes read, 108 bits of entropy available) Warning: Permanently added 'ci-android-44-kasan-gce-4,10.128.0.53' (ECDSA) to the list of known hosts. [ 41.136022] random: sshd: uninitialized urandom read (32 bytes read, 112 bits of entropy available) 2017/12/20 01:25:05 parsed 1 programs 2017/12/20 01:25:05 executed programs: 0 [ 41.369548] IPVS: Creating netns size=2552 id=1 [ 41.391916] IPVS: Creating netns size=2552 id=2 [ 41.414301] IPVS: Creating netns size=2552 id=3 [ 41.440262] IPVS: Creating netns size=2552 id=4 [ 41.485031] IPVS: Creating netns size=2552 id=5 [ 41.510724] IPVS: Creating netns size=2552 id=6 [ 41.556211] IPVS: Creating netns size=2552 id=7 [ 41.581856] IPVS: Creating netns size=2552 id=8 2017/12/20 01:25:10 executed programs: 2220 2017/12/20 01:25:15 executed programs: 4349 2017/12/20 01:25:20 executed programs: 6424 2017/12/20 01:25:25 executed programs: 8561 2017/12/20 01:25:30 executed programs: 10647 [ 71.156556] random: nonblocking pool is initialized 2017/12/20 01:25:35 executed programs: 12754 2017/12/20 01:25:40 executed programs: 14861 2017/12/20 01:25:45 executed programs: 16926 2017/12/20 01:25:50 executed programs: 19032 2017/12/20 01:25:55 executed programs: 21134 2017/12/20 01:26:00 executed programs: 23221 2017/12/20 01:26:05 executed programs: 25289 2017/12/20 01:26:10 executed programs: 27380 2017/12/20 01:26:15 executed programs: 29478 INIT: Id "1" respawning too fast: disabled for 5 minutes INIT: Id "4" respawning too fast: disabled for 5 minutes INIT: Id "2" respawning too fast: disabled for 5 minutes INIT: Id "3" respawning too fast: disabled for 5 minutes INIT: Id "5" respawning too fast: disabled for 5 minutes INIT: Id "6" respawning too fast: disabled for 5 minutes 2017/12/20 01:26:20 executed programs: 31579 2017/12/20 01:26:25 executed programs: 33661 2017/12/20 01:26:30 executed programs: 35771 2017/12/20 01:26:35 executed programs: 37885 2017/12/20 01:26:40 executed programs: 40007 2017/12/20 01:26:45 executed programs: 42118 2017/12/20 01:26:50 executed programs: 44197 2017/12/20 01:26:55 executed programs: 46334 2017/12/20 01:27:00 executed programs: 48457 2017/12/20 01:27:05 executed programs: 50561 2017/12/20 01:27:10 executed programs: 52666 2017/12/20 01:27:15 executed programs: 54798 2017/12/20 01:27:20 executed programs: 56877 2017/12/20 01:27:25 executed programs: 58983 2017/12/20 01:27:30 executed programs: 61103 2017/12/20 01:27:35 executed programs: 63200 2017/12/20 01:27:40 executed programs: 65316 2017/12/20 01:27:45 executed programs: 67409 2017/12/20 01:27:50 executed programs: 69528 2017/12/20 01:27:55 executed programs: 71609 2017/12/20 01:28:00 executed programs: 73702 2017/12/20 01:28:05 executed programs: 75820 2017/12/20 01:28:10 executed programs: 77914 2017/12/20 01:28:15 executed programs: 79999 2017/12/20 01:28:20 executed programs: 82088 2017/12/20 01:28:25 executed programs: 84182 2017/12/20 01:28:30 executed programs: 86261 2017/12/20 01:28:35 executed programs: 88336 2017/12/20 01:28:40 executed programs: 90394 2017/12/20 01:28:45 executed programs: 92458 [ 265.792818] ------------[ cut here ]------------ [ 265.797591] kernel BUG at mm/vmstat.c:1420! [ 265.801889] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 265.807665] Dumping ftrace buffer: [ 265.811166] (ftrace buffer empty) [ 265.814838] Modules linked in: [ 265.818115] CPU: 0 PID: 1211 Comm: kworker/0:1 Not tainted 4.4.106-g1700518 #9 [ 265.825437] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 265.834773] Workqueue: vmstat vmstat_update [ 265.839169] task: ffff8800b83eaf80 task.stack: ffff8800b7c18000 [ 265.845186] RIP: 0010:[] [] vmstat_update+0x33/0xb0 [ 265.853492] RSP: 0018:ffff8800b7c1fc10 EFLAGS: 00010283 [ 265.858905] RAX: 0000000000000000 RBX: ffff8801db418f20 RCX: ffffffff81d6276b [ 265.866137] RDX: 0000000000000000 RSI: ffffffff839fd420 RDI: ffff8800b83eb320 [ 265.873369] RBP: ffff8800b7c1fc30 R08: 0000000000000000 R09: ffffffff8512feb0 [ 265.880603] R10: 0000000000000001 R11: 1ffff10016f83f54 R12: 0000000000000000 [ 265.887842] R13: ffff8800b7c1fcc0 R14: ffff8800b9442300 R15: ffff8801db41e600 [ 265.895075] FS: 0000000000000000(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 265.903265] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 265.909108] CR2: 0000000020add000 CR3: 00000001d0ecb000 CR4: 00000000001406f0 [ 265.916342] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 265.923576] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 265.930806] Stack: [ 265.932916] ffff8800b7c1fcc0 ffff8801db418f20 0000000000000000 ffff8800b7c1fcc0 [ 265.940857] ffff8800b7c1fd48 ffffffff8117d0f4 ffffffff8117d014 ffff8800b9442348 [ 265.948792] ffff8801d9010f00 ffffffff00000000 ffff8800b9442310 ffff8800b9442320 [ 265.956730] Call Trace: [ 265.959281] [] process_one_work+0x794/0x16d0 [ 265.965303] [] ? process_one_work+0x6b4/0x16d0 [ 265.971496] [] ? pwq_dec_nr_in_flight+0x280/0x280 [ 265.977949] [] ? worker_thread+0x284/0xfe0 [ 265.983794] [] worker_thread+0xdf/0xfe0 [ 265.989380] [] ? __schedule+0xa99/0x1c70 [ 265.995052] [] ? _raw_spin_unlock_irqrestore+0x5a/0x70 [ 266.001942] [] kthread+0x268/0x300 [ 266.007093] [] ? process_one_work+0x16d0/0x16d0 [ 266.013373] [] ? kthread_create_on_node+0x400/0x400 [ 266.020001] [] ? kthread_create_on_node+0x400/0x400 [ 266.026626] [] ret_from_fork+0x3f/0x70 [ 266.032125] [] ? kthread_create_on_node+0x400/0x400 [ 266.038751] Code: 53 48 83 ec 08 e8 5e fd ff ff 85 c0 75 1f e8 95 40 8f 00 89 c0 f0 48 0f ab 05 1a e9 2a 04 72 0b 48 83 c4 08 5b 41 5c 41 5d 5d c3 <0f> 0b 48 63 3d 44 68 37 03 48 c7 c3 20 8f 01 00 e8 88 bc e2 ff [ 266.064977] RIP [] vmstat_update+0x33/0xb0 [ 266.070934] RSP [ 266.077891] ---[ end trace c8ab97ee2abda024 ]--- [ 266.088105] Kernel panic - not syncing: Fatal exception [ 266.093939] Dumping ftrace buffer: [ 266.097451] (ftrace buffer empty) [ 266.101127] Kernel Offset: disabled [ 266.104717] Rebooting in 86400 seconds..