Add ASAN support to the zend allocator #18858

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danog wants to merge 48 commits into php:master from danog:asan_zend_alloc

Final

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danog committed Jun 17, 2025

commit e88ec6da707d3c0744bf07bfee43bbda46b2abf9

Zend/zend_alloc.c

-Original file line number
+Diff line change
@@ Expand Up / @@ -2363,7 +2363,9 @@ static size_t _zend_mm_gc(zend_mm_heap *heap) @@
     	if (heap->use_custom_heap) {
     		size_t (*gc)(void) = heap->custom_heap._gc;
     		if (gc) {
-    			return gc();
+    			size_t ret = gc();
+    			ZEND_MM_UNPOISON_HEAP(heap);
+    			return ret;
     		}
     		return 0;
     	}
@@ Expand Down @@

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