memory commitment underflow
------------[ cut here ]------------
WARNING: CPU: 0 PID: 19297 at mm/util.c:604 __vm_enough_memory.cold+0x18/0x58 mm/util.c:604
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 19297 Comm: udevd Not tainted 4.14.158-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x142/0x197 lib/dump_stack.c:58
 panic+0x1f9/0x42d kernel/panic.c:183
 __warn.cold+0x2f/0x2f kernel/panic.c:547
 report_bug+0x216/0x254 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:177 [inline]
 fixup_bug arch/x86/kernel/traps.c:172 [inline]
 do_error_trap+0x1bb/0x310 arch/x86/kernel/traps.c:295
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:963
RIP: 0010:__vm_enough_memory.cold+0x18/0x58 mm/util.c:604
RSP: 0018:ffff888066befb70 EFLAGS: 00010286
RAX: 000000000000001b RBX: 0000000000000001 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff888054128c90 RDI: ffffed100cd7df64
RBP: ffff888066befba8 R08: 000000000000001b R09: ffff888054128cb0
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
R13: ffff88808ae62000 R14: ffffffff87ffdca0 R15: fff8000000044fbf
 security_vm_enough_memory_mm+0x93/0xb0 security/security.c:328
 dup_mmap kernel/fork.c:643 [inline]
 dup_mm kernel/fork.c:1199 [inline]
 copy_mm kernel/fork.c:1254 [inline]
 copy_process.part.0+0x453f/0x6a70 kernel/fork.c:1771
 copy_process kernel/fork.c:1586 [inline]
 _do_fork+0x19e/0xce0 kernel/fork.c:2070
 SYSC_clone kernel/fork.c:2180 [inline]
 SyS_clone+0x37/0x50 kernel/fork.c:2174
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x7f7f51baff46
RSP: 002b:00007ffc107f07e0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007ffc107f07e0 RCX: 00007f7f51baff46
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 00007ffc107f0840 R08: 0000000000004b61 R09: 0000000000004b61
R10: 00007f7f524cca70 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc107f0800 R14: 0000000000000005 R15: 0000000000000005
Kernel Offset: disabled
Rebooting in 86400 seconds..