Check for zend_shared_alloc() failures

Author: dstogov

ext/opcache/jit/zend_jit.c

@@ -3790,6 +3790,9 @@ static int zend_jit_setup_hot_counters(zend_op_array *op_array)
 	}
 
 	jit_extension = (zend_jit_op_array_hot_extension*)zend_shared_alloc(sizeof(zend_jit_op_array_hot_extension) + (op_array->last - 1) * sizeof(void*));
+	if (!jit_extension) {
+		return FAILURE;
+	}
 	memset(&jit_extension->func_info, 0, sizeof(zend_func_info));
 	jit_extension->func_info.flags = ZEND_FUNC_JIT_ON_HOT_COUNTERS;
 	jit_extension->counter = &zend_jit_hot_counters[zend_jit_op_array_hash(op_array) & (ZEND_HOT_COUNTERS_COUNT - 1)];
@@ -3831,6 +3834,9 @@ ZEND_EXT_API int zend_jit_op_array(zend_op_array *op_array, zend_script *script)
 			}
 		}
 		jit_extension = (zend_jit_op_array_extension*)zend_shared_alloc(sizeof(zend_jit_op_array_extension));
+		if (!jit_extension) {
+			return FAILURE;
+		}
 		memset(&jit_extension->func_info, 0, sizeof(zend_func_info));
 		jit_extension->func_info.flags = ZEND_FUNC_JIT_ON_FIRST_EXEC;
 		jit_extension->orig_handler = (void*)opline->handler;
@@ -3857,6 +3863,9 @@ ZEND_EXT_API int zend_jit_op_array(zend_op_array *op_array, zend_script *script)
 				}
 			}
 			jit_extension = (zend_jit_op_array_extension*)zend_shared_alloc(sizeof(zend_jit_op_array_extension));
+			if (!jit_extension) {
+				return FAILURE;
+			}
 			memset(&jit_extension->func_info, 0, sizeof(zend_func_info));
 			jit_extension->func_info.flags = ZEND_FUNC_JIT_ON_PROF_REQUEST;
 			jit_extension->orig_handler = (void*)opline->handler;

ext/opcache/jit/zend_jit_trace.c

@@ -7550,6 +7550,9 @@ static int zend_jit_setup_hot_trace_counters(zend_op_array *op_array)
 	ZEND_ASSERT(sizeof(zend_op_trace_info) == sizeof(zend_op));
 
 	jit_extension = (zend_jit_op_array_trace_extension*)zend_shared_alloc(sizeof(zend_jit_op_array_trace_extension) + (op_array->last - 1) * sizeof(zend_op_trace_info));
+	if (!jit_extension) {
+		return FAILURE;
+	}
 	memset(&jit_extension->func_info, 0, sizeof(zend_func_info));
 	jit_extension->func_info.flags = ZEND_FUNC_JIT_ON_HOT_TRACE;
 	jit_extension->op_array = op_array;