netlink: 'syz-executor2': attribute type 1 has an invalid length.
netlink: 'syz-executor2': attribute type 4 has an invalid length.
netlink: 'syz-executor2': attribute type 2 has an invalid length.
------------[ cut here ]------------
memory commitment underflow
WARNING: CPU: 0 PID: 6726 at mm/util.c:640 __vm_enough_memory+0x738/0x960 mm/util.c:638
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 6726 Comm: blkid Not tainted 4.17.0-rc7+ #74
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1b9/0x294 lib/dump_stack.c:113
 panic+0x22f/0x4de kernel/panic.c:184
 __warn.cold.8+0x163/0x1b3 kernel/panic.c:536
 report_bug+0x252/0x2d0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 do_error_trap+0x1de/0x490 arch/x86/kernel/traps.c:296
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:315
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:992
RIP: 0010:__vm_enough_memory+0x738/0x960 mm/util.c:638
RSP: 0018:ffff8801b134f740 EFLAGS: 00010282
RAX: 000000000000001b RBX: 1ffff10036269eec RCX: ffffffff8160be2d
RDX: 0000000000000000 RSI: ffffffff81610ae1 RDI: 0000000000000001
RBP: ffff8801b134f928 R08: ffff8801aff5e540 R09: 0000000000000006
R10: ffff8801aff5e540 R11: 0000000000000000 R12: ffff8801b134f900
R13: 0000000000000c67 R14: ffffffff88e08320 R15: 0000000000000004
 security_vm_enough_memory_mm+0x9d/0xc0 security/security.c:333
 mmap_region+0x37b/0x1870 mm/mmap.c:1714
 do_mmap+0x9d2/0x12e0 mm/mmap.c:1535
 do_mmap_pgoff include/linux/mm.h:2236 [inline]
 vm_mmap_pgoff+0x1fb/0x2a0 mm/util.c:357
 ksys_mmap_pgoff+0x4c9/0x640 mm/mmap.c:1585
 __do_sys_mmap arch/x86/kernel/sys_x86_64.c:100 [inline]
 __se_sys_mmap arch/x86/kernel/sys_x86_64.c:91 [inline]
 __x64_sys_mmap+0xe9/0x1b0 arch/x86/kernel/sys_x86_64.c:91
 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f4e69c313ea
RSP: 002b:00007fff4ac553f8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f4e69e394c8 RCX: 00007f4e69c313ea
RDX: 0000000000000003 RSI: 0000000000004000 RDI: 00007f4e69c17000
RBP: 00007fff4ac556c0 R08: 0000000000000003 R09: 0000000000023000
R10: 0000000000000812 R11: 0000000000000206 R12: 00007fff4ac557a8
R13: 0000000000000002 R14: 00007fff4ac55470 R15: 00007fff4ac55440
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..