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malloc-fail: Fix use-after-free in xmlXIncludeAddNode

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Found with libFuzzer, see #344.
This commit is contained in:
Nick Wellnhofer 2022-11-02 16:13:27 +01:00
parent afc7e3a7f4
commit 5a19e21605
1 changed files with 2 additions and 1 deletions
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3
xinclude.c
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@ -555,14 +555,15 @@ xmlXIncludeAddNode(xmlXIncludeCtxtPtr ctxt, xmlNodePtr cur) {
}
URL = xmlSaveUri(uri);
xmlFreeURI(uri);
xmlFree(URI);
if (URL == NULL) {
xmlXIncludeErr(ctxt, cur, XML_XINCLUDE_HREF_URI,
"invalid value URI %s\n", URI);
if (fragment != NULL)
xmlFree(fragment);
xmlFree(URI);
return(NULL);
}
xmlFree(URI);
if (xmlStrEqual(URL, ctxt->doc->URL))
local = 1;