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Fix another code path in xmlParseQName

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Check for buffer errors in another code path missed in the previous
commit.

Found by OSS-Fuzz.
This commit is contained in:
Nick Wellnhofer
2019-07-08 11:29:40 +02:00
parent 5ccac8cecf
commit 01ea9c5af7
1 changed files with 4 additions and 2 deletions
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6
parser.c
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@@ -8728,9 +8728,11 @@ xmlParseQName(xmlParserCtxtPtr ctxt, const xmlChar **prefix) {
xmlNsErr(ctxt, XML_NS_ERR_QNAME, xmlNsErr(ctxt, XML_NS_ERR_QNAME,
"Failed to parse QName '%s:'\n", p, NULL, NULL); "Failed to parse QName '%s:'\n", p, NULL, NULL);
l = xmlParseNmtoken(ctxt); l = xmlParseNmtoken(ctxt);
if (l == NULL) if (l == NULL) {
if (ctxt->instate == XML_PARSER_EOF)
return(NULL);
tmp = xmlBuildQName(BAD_CAST "", p, NULL, 0); tmp = xmlBuildQName(BAD_CAST "", p, NULL, 0);
else { } else {
tmp = xmlBuildQName(l, p, NULL, 0); tmp = xmlBuildQName(l, p, NULL, 0);
xmlFree((char *)l); xmlFree((char *)l);
} }