[....] Starting enhanced syslogd: rsyslogd[ 14.411665] audit: type=1400 audit(1572172325.196:4): avc: denied { syslog } for pid=1925 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] 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 Warning: Permanently added '10.128.0.18' (ECDSA) to the list of known hosts. 2019/10/27 10:32:17 fuzzer started 2019/10/27 10:32:19 dialing manager at 10.128.0.26:45583 2019/10/27 10:32:19 syscalls: 1346 2019/10/27 10:32:19 code coverage: enabled 2019/10/27 10:32:19 comparison tracing: CONFIG_KCOV_ENABLE_COMPARISONS is not enabled 2019/10/27 10:32:19 extra coverage: extra coverage is not supported by the kernel 2019/10/27 10:32:19 setuid sandbox: enabled 2019/10/27 10:32:19 namespace sandbox: enabled 2019/10/27 10:32:19 Android sandbox: /sys/fs/selinux/policy does not exist 2019/10/27 10:32:19 fault injection: kernel does not have systematic fault injection support 2019/10/27 10:32:19 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/10/27 10:32:19 net packet injection: enabled 2019/10/27 10:32:19 net device setup: enabled 2019/10/27 10:32:19 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist syzkaller login: [ 65.426302] ------------[ cut here ]------------ [ 65.431351] kernel BUG at mm/vmstat.c:1425! [ 65.435697] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 65.441749] Modules linked in: [ 65.445087] CPU: 0 PID: 63 Comm: kworker/0:1 Not tainted 4.4.174+ #4 [ 65.451771] Workqueue: vmstat vmstat_update [ 65.456353] task: ffff8801d8c35f00 task.stack: ffff8801d8d68000 [ 65.462629] RIP: 0010:[] [] vmstat_update+0x99/0xb0 [ 65.471326] RSP: 0018:ffff8801d8d6fbc0 EFLAGS: 00010287 [ 65.476859] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 65.484384] RDX: 0000000000000000 RSI: ffffffff81b0abec RDI: ffff8801d8c362f8 [ 65.491936] RBP: ffff8801d8d6fbe0 R08: ffffffff82836948 R09: ffff8801d8c36810 [ 65.499358] R10: ffffffff83a189d0 R11: 0000000000000000 R12: ffff8801db61b380 [ 65.506622] R13: ffff8801d8d6fc78 R14: ffff8801d8c19500 R15: ffff8801db61df00 [ 65.514042] FS: 0000000000000000(0000) GS:ffff8801db600000(0000) knlGS:0000000000000000 [ 65.522451] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 65.528431] CR2: 000000c427972008 CR3: 00000000b912f000 CR4: 00000000001606b0 [ 65.535707] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 65.542974] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 65.550237] Stack: [ 65.552379] 0000000000000000 ffff8801db61b380 ffff8801d8d6fc78 ffff8801d8c19500 [ 65.560736] ffff8801d8d6fd00 ffffffff81122c25 ffffffff81122b42 ffffffff81159431 [ 65.568895] ffff8801d8c19548 ffff8800003f9b80 ffff880100000000 ffff8801d8c19520 [ 65.577049] Call Trace: [ 65.579636] [] process_one_work+0x825/0x1720 [ 65.585687] [] ? process_one_work+0x742/0x1720 [ 65.592168] [] ? finish_task_switch+0x1e1/0x660 [ 65.598481] [] ? cancel_delayed_work_sync+0x20/0x20 [ 65.605230] [] worker_thread+0x4e4/0xf50 [ 65.611016] [] ? __schedule+0x7e3/0x1ee0 [ 65.616864] [] ? process_one_work+0x1720/0x1720 [ 65.623177] [] kthread+0x273/0x310 [ 65.628360] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 65.635275] [] ? _raw_spin_unlock_irq+0x39/0x60 [ 65.641755] [] ? finish_task_switch+0x1e1/0x660 [ 65.648143] [] ? finish_task_switch+0x1b3/0x660 [ 65.654460] [] ? __schedule+0x7af/0x1ee0 [ 65.660312] [] ? __schedule+0x7a3/0x1ee0 [ 65.666016] [] ? __schedule+0x7af/0x1ee0 [ 65.672053] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 65.678933] [] ret_from_fork+0x55/0x80 [ 65.684610] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 65.691355] Code: 89 f6 e8 4b 95 d1 ff 5b 41 5c 41 5d 41 5e 5d c3 e8 cd e3 6f 00 89 c0 f0 48 0f ab 05 92 f4 c1 02 72 09 5b 41 5c 41 5d 41 5e 5d c3 <0f> 0b e8 c0 84 07 00 eb af 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 [ 65.721764] RIP [] vmstat_update+0x99/0xb0 [ 65.728158] RSP [ 65.733605] ---[ end trace 4050a47a662e0e0c ]--- [ 65.738510] Kernel panic - not syncing: Fatal exception [ 65.745056] Kernel Offset: disabled [ 65.748788] Rebooting in 86400 seconds..