36 lines
934 B
Diff
36 lines
934 B
Diff
From 457fc622d5e8e3734d9c294c81d6c1babb9c5dd5 Mon Sep 17 00:00:00 2001
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From: Nick Wellnhofer <wellnhofer@aevum.de>
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Date: Mon, 13 Mar 2023 16:51:14 +0100
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Subject: [PATCH] malloc-fail: Fix null deref in xmlParserInputShrink
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Found by OSS-Fuzz.
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Reference:https://github.com/GNOME/libxml2/commit/457fc622d5e8e3734d9c294c81d6c1babb9c5dd5
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Conflict:NA
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---
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parserInternals.c | 7 +++++++
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1 file changed, 7 insertions(+)
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diff --git a/parserInternals.c b/parserInternals.c
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index dd1dc9c..08d8d55 100644
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--- a/parserInternals.c
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+++ b/parserInternals.c
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@@ -380,6 +380,13 @@ xmlParserInputShrink(xmlParserInputPtr in) {
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}
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in->base = xmlBufContent(in->buf->buffer);
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+ if (in->base == NULL) {
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+ /* TODO: raise error */
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+ in->base = BAD_CAST "";
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+ in->cur = in->base;
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+ in->end = in->base;
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+ return;
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+ }
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in->cur = in->base + used;
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in->end = xmlBufEnd(in->buf->buffer);
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--
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2.27.0
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