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-rw-r--r--Zend/zend_mm.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/Zend/zend_mm.c b/Zend/zend_mm.c
index 04102720ef..0a9793e399 100644
--- a/Zend/zend_mm.c
+++ b/Zend/zend_mm.c
@@ -408,6 +408,9 @@ void *zend_mm_realloc(zend_mm_heap *heap, void *p, size_t size)
/* segment size, size of block and size of guard block */
realloc_to_size = ZEND_MM_ALIGNED_SEGMENT_SIZE+true_size+ZEND_MM_ALIGNED_HEADER_SIZE;
segment = realloc(segment, realloc_to_size);
+ if (!segment) {
+ return NULL;
+ }
if (segment != segment_copy) {
if (heap->segments_list == segment_copy) {