INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?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 '10.128.0.17' (ECDSA) to the list of known hosts. 2018/04/11 03:46:14 parsed 1 programs 2018/04/11 03:46:14 executed programs: 0 syzkaller login: [ 131.453471] IPVS: ftp: loaded support on port[0] = 21 [ 131.463557] IPVS: ftp: loaded support on port[0] = 21 [ 131.466888] IPVS: ftp: loaded support on port[0] = 21 [ 131.482460] IPVS: ftp: loaded support on port[0] = 21 [ 131.489265] IPVS: ftp: loaded support on port[0] = 21 [ 131.490323] IPVS: ftp: loaded support on port[0] = 21 [ 131.528658] IPVS: ftp: loaded support on port[0] = 21 [ 131.550182] IPVS: ftp: loaded support on port[0] = 21 [ 131.703734] BUG: sleeping function called from invalid context at arch/x86/mm/fault.c:1342 [ 131.712253] in_atomic(): 0, irqs_disabled(): 1, pid: 4512, name: blkid [ 131.718898] 1 lock held by blkid/4512: [ 131.722758] #0: 00000000d5b4e650 (&mm->mmap_sem){++++}, at: __do_page_fault+0x381/0xe40 [ 131.730989] irq event stamp: 1812 [ 131.734430] hardirqs last enabled at (1811): [] entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 131.744295] hardirqs last disabled at (1812): [] error_entry+0x72/0xd0 [ 131.752514] softirqs last enabled at (1804): [] __do_softirq+0x778/0xaf5 [ 131.760991] softirqs last disabled at (1797): [] irq_exit+0x1d1/0x200 [ 131.769119] CPU: 1 PID: 4512 Comm: blkid Not tainted 4.16.0+ #16 [ 131.775239] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 131.784579] Call Trace: [ 131.787149] BUG: unable to handle kernel paging request at 0000000041b5e1f3 [ 131.794230] PGD 1b4390067 P4D 1b4390067 PUD 0 [ 131.798796] Oops: 0000 [#1] SMP KASAN [ 131.802571] Dumping ftrace buffer: [ 131.806086] (ftrace buffer empty) [ 131.809777] Modules linked in: [ 131.812951] CPU: 1 PID: 4512 Comm: blkid Tainted: G W 4.16.0+ #16 [ 131.820373] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 131.829709] RIP: 0010:vmx_vcpu_run+0xa3d/0x25f0 [ 131.834352] RSP: 0018:ffff8801b5d27380 EFLAGS: 00010046 [ 131.839700] ================================================================== [ 131.847043] BUG: KASAN: stack-out-of-bounds in __show_regs.cold.7+0x4e/0x54a [ 131.854213] Read of size 8 at addr ffff8801b5d27300 by task blkid/4512 [ 131.860852] [ 131.862459] CPU: 1 PID: 4512 Comm: blkid Tainted: G W 4.16.0+ #16 [ 131.869891] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 131.879219] Call Trace: [ 131.881773] [ 131.883373] The buggy address belongs to the page: [ 131.888279] page:ffffea0006d749c0 count:0 mapcount:0 mapping:0000000000000000 index:0x0 [ 131.896403] flags: 0x2fffc0000000000() [ 131.900268] raw: 02fffc0000000000 0000000000000000 0000000000000000 00000000ffffffff [ 131.908126] raw: 0000000000000000 ffffea0006d70101 0000000000000000 0000000000000000 [ 131.915978] page dumped because: kasan: bad access detected [ 131.921666] [ 131.923265] Memory state around the buggy address: [ 131.928179] ffff8801b5d27200: f2 f2 f2 f2 00 f2 f2 f2 f2 f2 f2 f2 00 f2 f2 f2 [ 131.935514] ffff8801b5d27280: f3 f3 f3 f3 f2 f2 f8 f2 f2 f2 f2 f2 f2 f2 00 00 [ 131.942849] >ffff8801b5d27300: f2 f2 f3 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 [ 131.950180] ^ [ 131.953519] ffff8801b5d27380: f1 f1 f1 f1 00 f2 f2 f2 f2 f2 f2 f2 00 f2 f2 f2 [ 131.960854] ffff8801b5d27400: f2 f2 f2 f2 00 f2 f2 f2 f3 f3 f3 f3 00 00 00 00 [ 131.968184] ================================================================== [ 131.975515] Kernel panic - not syncing: panic_on_warn set ... [ 131.975515] [ 131.983246] Dumping ftrace buffer: [ 131.986762] (ftrace buffer empty) [ 131.990445] Kernel Offset: disabled [ 131.994048] Rebooting in 86400 seconds..