[ 14.399738] audit: type=1800 audit(1562912460.814:28): pid=5492 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="startpar" name="cron" dev="sda1" ino=2447 res=0 [ 14.422342] audit: type=1800 audit(1562912460.844:29): pid=5492 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="startpar" name="mcstrans" dev="sda1" ino=2490 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.43' (ECDSA) to the list of known hosts. 2019/07/12 06:21:31 fuzzer started 2019/07/12 06:21:34 dialing manager at 10.128.0.105:44421 2019/07/12 06:21:34 syscalls: 2397 2019/07/12 06:21:34 code coverage: CONFIG_KCOV is not enabled 2019/07/12 06:21:34 comparison tracing: CONFIG_KCOV is not enabled 2019/07/12 06:21:34 extra coverage: CONFIG_KCOV is not enabled 2019/07/12 06:21:34 setuid sandbox: enabled 2019/07/12 06:21:34 namespace sandbox: enabled 2019/07/12 06:21:34 Android sandbox: /sys/fs/selinux/policy does not exist 2019/07/12 06:21:34 fault injection: kernel does not have systematic fault injection support 2019/07/12 06:21:34 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/07/12 06:21:34 net packet injection: enabled 2019/07/12 06:21:34 net device setup: enabled syzkaller login: [ 47.754394] ------------[ cut here ]------------ [ 47.759169] kernel BUG at mm/vmstat.c:1420! [ 47.763475] invalid opcode: 0000 [#1] PREEMPT SMP [ 47.768778] Modules linked in: [ 47.772096] CPU: 1 PID: 689 Comm: kworker/1:1 Not tainted 4.4.185 #14 [ 47.778657] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.788010] Workqueue: vmstat vmstat_update [ 47.792451] task: ffff8800baf26580 ti: ffff8800bb35c000 task.ti: ffff8800bb35c000 [ 47.800184] RIP: 0010:[] [] vmstat_update+0x8c/0xc0 [ 47.808546] RSP: 0018:ffff8800bb35fd70 EFLAGS: 00010293 [ 47.814736] RAX: 0000000000000001 RBX: ffff88012b028700 RCX: 0000000000000000 [ 47.821986] RDX: 0000000000000000 RSI: ffffffff82f4d2cf RDI: ffffffff82f07b52 [ 47.829238] RBP: ffff8800bb35fd90 R08: 0000000000000000 R09: 0000000000000003 [ 47.836488] R10: 0000000000000001 R11: 0000000000000000 R12: ffff88012c1168c0 [ 47.843736] R13: ffffe8ffffd0a400 R14: ffff88012c110e20 R15: ffffffff83436b78 [ 47.851517] FS: 0000000000000000(0000) GS:ffff88012c100000(0000) knlGS:0000000000000000 [ 47.859722] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 47.865590] CR2: 00000000004c3500 CR3: 000000000320b000 CR4: 00000000001406f0 [ 47.872843] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 47.880191] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 47.887964] Stack: [ 47.890095] ffff88012b028700 ffff88012c1168c0 ffffe8ffffd0a400 ffff88012c110e20 [ 47.898128] ffff8800bb35fe00 ffffffff811915d7 ffffffff81191544 ffff88012c116a08 [ 47.907941] 0000000000000000 ffffffff84310f90 ffffffff83da5a00 0000000000000000 [ 47.915994] Call Trace: [ 47.918565] [] process_one_work+0x237/0x7f0 [ 47.924515] [] ? process_one_work+0x1a4/0x7f0 [ 47.930810] [] worker_thread+0x49/0x460 [ 47.936415] [] ? process_one_work+0x7f0/0x7f0 [ 47.942535] [] kthread+0xe3/0x100 [ 47.947616] [] ? kthread_create_on_node+0x210/0x210 [ 47.955116] [] ret_from_fork+0x3f/0x70 [ 47.960733] [] ? kthread_create_on_node+0x210/0x210 [ 47.967374] Code: 41 5c 41 5d 41 5e 5d c3 e8 62 80 62 00 83 f8 3f 77 1b 89 c0 f0 48 0f ab 05 4a 4c 07 03 72 0c 48 83 c4 08 41 5c 41 5d 41 5e 5d c3 <0f> 0b 80 3d 0b b2 16 02 00 75 dc be 75 00 00 00 48 c7 c7 3f ee [ 47.995959] RIP [] vmstat_update+0x8c/0xc0 [ 48.002412] RSP [ 48.006131] ---[ end trace 40fb3eeea802ad60 ]--- [ 48.010877] Kernel panic - not syncing: Fatal exception [ 48.017343] Kernel Offset: disabled [ 48.020987] Rebooting in 86400 seconds..