------------[ cut here ]------------
WARNING: CPU: 1 PID: 24352 at mm/util.c:546 __vm_enough_memory+0x41d/0x510 mm/util.c:544
memory commitment underflow[  417.214828] Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 24352 Comm: syz-executor2 Not tainted 4.9.130+ #100
 ffff8801aa5d7a60 ffffffff81b36c99 ffffffff82a38c20 00000000ffffffff
 0000000000000000 0000000000000001 0000000000000222 ffff8801aa5d7b20
 ffffffff813f6835 0000000041b58ab3 ffffffff82e297ab ffffffff813f6676
Call Trace:
 [<ffffffff81b36c99>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81b36c99>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff813f6835>] panic+0x1bf/0x39f kernel/panic.c:179
 [<ffffffff813f6b04>] __warn.cold.9+0xc1/0x17f kernel/panic.c:542
 [<ffffffff810dbb12>] warn_slowpath_fmt+0xc2/0x100 kernel/panic.c:565
 [<ffffffff8146a37d>] __vm_enough_memory+0x41d/0x510 mm/util.c:544
 [<ffffffff819d7026>] security_vm_enough_memory_mm+0x96/0xb0 security/security.c:238
 [<ffffffff814b3bc1>] mmap_region+0x4c1/0xf90 mm/mmap.c:1676
 [<ffffffff814b4bcd>] do_mmap+0x53d/0xbb0 mm/mmap.c:1505
 [<ffffffff81469bd8>] do_mmap_pgoff include/linux/mm.h:2032 [inline]
 [<ffffffff81469bd8>] vm_mmap_pgoff+0x168/0x1b0 mm/util.c:329
 [<ffffffff814af2d2>] SYSC_mmap_pgoff mm/mmap.c:1555 [inline]
 [<ffffffff814af2d2>] SyS_mmap_pgoff+0x152/0x1b0 mm/mmap.c:1513
 [<ffffffff8105cfe6>] SYSC_mmap arch/x86/kernel/sys_x86_64.c:96 [inline]
 [<ffffffff8105cfe6>] SyS_mmap+0x16/0x20 arch/x86/kernel/sys_x86_64.c:87
 [<ffffffff810056ef>] do_syscall_64+0x19f/0x550 arch/x86/entry/common.c:285
 [<ffffffff82803013>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Kernel Offset: disabled
Rebooting in 86400 seconds..