30 lines
806 B
Diff
30 lines
806 B
Diff
From 70b21c9f2a31b3ecfe8aa624c01da3ebba9e06c8 Mon Sep 17 00:00:00 2001
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From: Nick Wellnhofer <wellnhofer@aevum.de>
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Date: Sun, 26 Feb 2023 14:33:16 +0100
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Subject: [PATCH] malloc-fail: Fix null deref in xmlXPathCompiledEvalInternal
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Found with libFuzzer, see #344.
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Reference:https://github.com/GNOME/libxml2/commit/70b21c9f2a31b3ecfe8aa624c01da3ebba9e06c8
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Conflict:NA
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---
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xpath.c | 2 ++
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1 file changed, 2 insertions(+)
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diff --git a/xpath.c b/xpath.c
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index d63bdd7..54d9c58 100644
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--- a/xpath.c
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+++ b/xpath.c
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@@ -14370,6 +14370,8 @@ xmlXPathCompiledEvalInternal(xmlXPathCompExprPtr comp,
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}
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#endif
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pctxt = xmlXPathCompParserContext(comp, ctxt);
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+ if (pctxt == NULL)
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+ return(-1);
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res = xmlXPathRunEval(pctxt, toBool);
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if (pctxt->error != XPATH_EXPRESSION_OK) {
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--
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2.27.0
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