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-rw-r--r--mysys/my_alloc.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/mysys/my_alloc.c b/mysys/my_alloc.c
index 15b96e8a20a..9e5b6809dea 100644
--- a/mysys/my_alloc.c
+++ b/mysys/my_alloc.c
@@ -197,7 +197,7 @@ void *alloc_root(MEM_ROOT *mem_root, size_t length)
DBUG_SET("-d,simulate_out_of_memory");
DBUG_RETURN((void*) 0); /* purecov: inspected */
});
- length= ALIGN_SIZE(length);
+ length= ALIGN_SIZE(length) + REDZONE_SIZE;
if ((*(prev= &mem_root->free)) != NULL)
{
if ((*prev)->left < length &&
@@ -242,6 +242,7 @@ void *alloc_root(MEM_ROOT *mem_root, size_t length)
mem_root->used= next;
mem_root->first_block_usage= 0;
}
+ point+= REDZONE_SIZE;
TRASH_ALLOC(point, original_length);
DBUG_PRINT("exit",("ptr: 0x%lx", (ulong) point));
DBUG_RETURN((void*) point);