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[CVE-2024-25062] xmlreader: Don't expand XIncludes when backtracking

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Fixes a use-after-free if XML Reader if used with DTD validation and
XInclude expansion.

Fixes #604.
This commit is contained in:
Nick Wellnhofer 2023-10-14 22:45:54 +02:00
parent 8d9a5c68e9
commit 2b0aac140d
1 changed files with 1 additions and 0 deletions
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xmlreader.c
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@ -1443,6 +1443,7 @@ node_found:
* Handle XInclude if asked for
*/
if ((reader->xinclude) && (reader->in_xinclude == 0) &&
(reader->state != XML_TEXTREADER_BACKTRACK) &&
(reader->node != NULL) &&
(reader->node->type == XML_ELEMENT_NODE) &&
(reader->node->ns != NULL) &&