diff options
Diffstat (limited to 'vm/vm_map.c')
| -rw-r--r-- | vm/vm_map.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/vm/vm_map.c b/vm/vm_map.c index 4da72d4e..2fd27316 100644 --- a/vm/vm_map.c +++ b/vm/vm_map.c @@ -685,7 +685,7 @@ restart: start = (map->min_offset + mask) & ~mask; end = start + size; - if ((end <= start) || (end > map->max_offset)) { + if ((start < map->min_offset) || (end <= start) || (end > map->max_offset)) { goto error; } @@ -699,7 +699,8 @@ restart: start = (entry->vme_end + mask) & ~mask; end = start + size; - if ((end > start) + if ((start >= entry->vme_end) + && (end > start) && (end <= map->max_offset) && (end <= (entry->vme_end + entry->gap_size))) { *startp = start; @@ -738,6 +739,7 @@ restart: assert(entry->gap_size >= max_size); start = (entry->vme_end + mask) & ~mask; + assert(start >= entry->vme_end); end = start + size; assert(end > start); assert(end <= (entry->vme_end + entry->gap_size)); |