------------[ cut here ]------------
memory commitment underflow
WARNING: CPU: 1 PID: 8009 at mm/util.c:657 __vm_enough_memory+0x2db/0x3a0 mm/util.c:657
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 8009 Comm: syz-executor941 Not tainted 5.1.0-rc5-next-20190418 #28
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+0x172/0x1f0 lib/dump_stack.c:113
 panic+0x2cb/0x72b kernel/panic.c:214
 __warn.cold+0x20/0x46 kernel/panic.c:576
 report_bug+0x263/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:179 [inline]
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272
 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:972
RIP: 0010:__vm_enough_memory+0x2db/0x3a0 mm/util.c:657
Code: e8 7a 94 db ff 0f b6 75 d0 40 84 f6 0f 85 f0 fd ff ff e8 28 93 db ff 48 c7 c7 e0 76 72 87 c6 05 e8 db c6 07 01 e8 73 0d ae ff <0f> 0b 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 0f b6 14
RSP: 0018:ffff8880a06dfb28 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000021 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff815b2ba6 RDI: ffffed10140dbf57
RBP: ffff8880a06dfb60 R08: ffff88808ad7c580 R09: ffff88808ad7ce20
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88808b33ac00
R13: 0000000000000001 R14: ffffffff88a26b40 R15: 0000000000000c67
 security_vm_enough_memory_mm+0xa0/0xd0 security/security.c:739
 mmap_region+0x371/0x1750 mm/mmap.c:1739
 do_mmap+0x924/0x1090 mm/mmap.c:1560
 do_mmap_pgoff include/linux/mm.h:2391 [inline]
 vm_mmap_pgoff+0x1c5/0x230 mm/util.c:362
 ksys_mmap_pgoff+0xf7/0x630 mm/mmap.c:1610
 __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+0x103/0x670 arch/x86/entry/common.c:298
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4467fa
Code: 89 f5 41 54 49 89 fc 55 53 74 35 49 63 e8 48 63 da 4d 89 f9 49 89 e8 4d 63 d6 48 89 da 4c 89 ee 4c 89 e7 b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 4e 5b 5d 41 5c 41 5d 41 5e 41 5f c3 0f 1f 00
RSP: 002b:00007ffe84192e08 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004467fa
RDX: 0000000000000003 RSI: 0000000000021000 RDI: 0000000000000000
RBP: ffffffffffffffff R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000020022 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000021000 R14: 0000000000020022 R15: 0000000000000000
Kernel Offset: disabled
Rebooting in 86400 seconds..