------------[ cut here ]------------
WARNING: CPU: 1 PID: 10203 at mm/util.c:544 __vm_enough_memory+0x401/0x540 mm/util.c:544
memory commitment underflow[ 1392.323566] Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 10203 Comm: syz-executor.3 Not tainted 4.9.189+ #4
 ffff88019758fa40 ffffffff81b65c01 ffff88019758fb00 ffffffff82a3b1c0
 00000000ffffffff 0000000000000001 0000000000000009 ffff88019758fb20
 ffffffff813feb5a 0000000041b58ab3 ffffffff82e3260d ffffffff813fe981
Call Trace:
 [<000000000e2b9a6c>] __dump_stack lib/dump_stack.c:15 [inline]
 [<000000000e2b9a6c>] dump_stack+0xc1/0x120 lib/dump_stack.c:51
 [<0000000075c20bbc>] panic+0x1d9/0x3bd kernel/panic.c:180
 [<0000000057646111>] __warn.cold+0x2f/0x2f kernel/panic.c:546
 [<00000000bd9f6145>] warn_slowpath_fmt+0xc2/0x100 kernel/panic.c:569
 [<00000000b1c6afea>] __vm_enough_memory+0x401/0x540 mm/util.c:544
 [<00000000f3fead6a>] security_vm_enough_memory_mm+0x99/0xc0 security/security.c:238
 [<000000005debc6d9>] mmap_region+0x4a8/0xfa0 mm/mmap.c:1676
 [<00000000242b5a83>] do_mmap+0x539/0xbc0 mm/mmap.c:1505
 [<00000000963d2883>] do_mmap_pgoff include/linux/mm.h:2071 [inline]
 [<00000000963d2883>] vm_mmap_pgoff+0x179/0x1c0 mm/util.c:329
 [<00000000bcaa29c3>] SYSC_mmap_pgoff mm/mmap.c:1555 [inline]
 [<00000000bcaa29c3>] SyS_mmap_pgoff+0x14d/0x1b0 mm/mmap.c:1513
 [<000000009d3080f5>] SYSC_mmap arch/x86/kernel/sys_x86_64.c:96 [inline]
 [<000000009d3080f5>] SyS_mmap+0x16/0x20 arch/x86/kernel/sys_x86_64.c:87
 [<00000000424fa605>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288
 [<0000000074f4178d>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Kernel Offset: disabled
Rebooting in 86400 seconds..