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Fix a potential NULL dereference

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For https://bugzilla.gnome.org/show_bug.cgi?id=733040

xmlDictLookup() may return NULL in case of allocation error,
though very unlikely it need to be checked.
This commit is contained in:
Daniel Veillard
2014-07-14 16:39:50 +08:00
parent 54c4b1aa71
commit c836ba66e5
1 changed files with 6 additions and 0 deletions
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6
parser.c
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@@ -9316,6 +9316,12 @@ reparse:
const xmlChar *URL = xmlDictLookup(ctxt->dict, attvalue, len); const xmlChar *URL = xmlDictLookup(ctxt->dict, attvalue, len);
xmlURIPtr uri; xmlURIPtr uri;
if (URL == NULL) {
xmlErrMemory(ctxt, "dictionary allocation failure");
if ((attvalue != NULL) && (alloc != 0))
xmlFree(attvalue);
return(NULL);
}
if (*URL != 0) { if (*URL != 0) {
uri = xmlParseURI((const char *) URL); uri = xmlParseURI((const char *) URL);
if (uri == NULL) { if (uri == NULL) {