30 lines
828 B
Diff
30 lines
828 B
Diff
From 31844c74df39c3b88735ef884c33c41da9d52795 Mon Sep 17 00:00:00 2001
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From: Nick Wellnhofer <wellnhofer@aevum.de>
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Date: Sun, 5 Mar 2023 14:10:08 +0100
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Subject: [PATCH] malloc-fail: Fix null deref in xmlSchemaParseUnion
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Found with libFuzzer, see #344.
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Reference:https://github.com/GNOME/libxml2/commit/31844c74df39c3b88735ef884c33c41da9d52795
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Conflict:NA
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---
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xmlschemas.c | 2 ++
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1 file changed, 2 insertions(+)
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diff --git a/xmlschemas.c b/xmlschemas.c
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index 06bf664..5b93937 100644
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--- a/xmlschemas.c
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+++ b/xmlschemas.c
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@@ -9006,6 +9006,8 @@ xmlSchemaParseUnion(xmlSchemaParserCtxtPtr ctxt, xmlSchemaPtr schema,
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xmlSchemaQNameRefPtr ref;
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cur = xmlSchemaGetNodeContent(ctxt, (xmlNodePtr) attr);
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+ if (cur == NULL)
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+ return (-1);
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type->base = cur;
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do {
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while (IS_BLANK_CH(*cur))
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--
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2.27.0
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