Fix bug #73150: missing NULL check in dom_document_save_html

(cherry picked from commit 1c0e9126fbfb7fde3173347b7464237f56c38bfa)

diff --git a/ext/dom/document.c b/ext/dom/document.c
index 30d9c13ee9d1cb6a0dcbd61b23161b6e48945b4f..17ac30a991f9ed39020ce7cdd88e9de7e9301bca 100644 (file)
--- a/ext/dom/document.c
+++ b/ext/dom/document.c
@@ -1663,7 +1663,7 @@ PHP_FUNCTION(dom_document_savexml)
                if (options & LIBXML_SAVE_NOEMPTYTAG) {
                        xmlSaveNoEmptyTags = saveempty;
                }
-               if (!size) {
+               if (!size || !mem) {
                        RETURN_FALSE;
                }
                RETVAL_STRINGL((char *) mem, size);
@@ -2215,7 +2215,7 @@ PHP_FUNCTION(dom_document_save_html)
 #else
                htmlDocDumpMemory(docp, &mem, &size);
 #endif
-               if (!size) {
+               if (!size || !mem) {
                        RETVAL_FALSE;
                } else {
                        RETVAL_STRINGL((const char*) mem, size);