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Restore a check unintentionally dropped in r362361.

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MFC with:	r362361
This commit is contained in:
Mark Johnston 2020-06-19 04:18:20 +00:00
parent 73a8c90026
commit f034074034
1 changed files with 1 additions and 1 deletions
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2
sys/vm/vm_map.c
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@ -1616,7 +1616,7 @@ vm_map_insert(vm_map_t map, vm_object_t object, vm_ooffset_t offset,
/*
* Check that the start and end points are not bogus.
*/
if (!vm_map_range_valid(map, start, end))
if (start == end || !vm_map_range_valid(map, start, end))
return (KERN_INVALID_ADDRESS);
/*