------------[ cut here ]------------
memory commitment underflow
WARNING: CPU: 0 PID: 4507 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: 4507 Comm: syz-executor245 Not tainted 4.17.0-rc6+ #66
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:ffff8801b225eff0 EFLAGS: 00010282
RAX: 000000000000001b RBX: 1ffff1003644be02 RCX: ffffffff8160bcad
RDX: 0000000000000000 RSI: ffffffff81610961 RDI: 0000000000000001
RBP: ffff8801b225f1d8 R08: ffff8801b19ce580 R09: 0000000000000006
R10: ffff8801b19ce580 R11: 0000000000000000 R12: ffff8801b225f1b0
R13: 0000000000000c67 R14: ffffffff88e08360 R15: 0000000000001000
 security_vm_enough_memory_mm+0x9d/0xc0 security/security.c:333
 dup_mmap kernel/fork.c:446 [inline]
 dup_mm kernel/fork.c:1234 [inline]
 copy_mm kernel/fork.c:1288 [inline]
 copy_process.part.38+0x2d0c/0x6e90 kernel/fork.c:1794
 copy_process kernel/fork.c:1607 [inline]
 _do_fork+0x291/0x12a0 kernel/fork.c:2088
 __do_sys_clone kernel/fork.c:2195 [inline]
 __se_sys_clone kernel/fork.c:2189 [inline]
 __x64_sys_clone+0xbf/0x150 kernel/fork.c:2189
 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x43ea8a
RSP: 002b:00007ffc3f1ea9f0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000043ea8a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 00007ffc3f1eaa10 R08: 0000000000000000 R09: 0000000000dbd880
R10: 0000000000dbdb50 R11: 0000000000000246 R12: 0000000000000000
R13: 00000000004016f0 R14: 0000000000000000 R15: 0000000000000000
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..