[PATCH 2/4] ntdll: Heap last block detection in heap_walk_blocks().

[Paul Gofman]

From: Paul Gofman

---
 dlls/ntdll/heap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/ntdll/heap.c b/dlls/ntdll/heap.c
index 38c39368896..6a9ec90a444 100644
--- a/dlls/ntdll/heap.c
+++ b/dlls/ntdll/heap.c
@@ -2423,7 +2423,7 @@ static NTSTATUS heap_walk_blocks( const struct heap *heap, const SUBHEAP *subhea
         entry->lpData = (char *)block + block_get_overhead( block );
         entry->cbData = block_get_size( block ) - block_get_overhead( block );
         /* FIXME: last free block should not include uncommitted range, which also has its own overhead */
-        if (!contains( blocks, commit_end - (char *)blocks, block, block_get_size( block ) ))
+        if (!contains( blocks, commit_end - (char *)blocks - 4 * BLOCK_ALIGN, block, block_get_size( block ) ))
             entry->cbData = commit_end - (char *)entry->lpData - 4 * BLOCK_ALIGN;
         entry->cbOverhead = 2 * BLOCK_ALIGN;
         entry->iRegionIndex = 0;