35 lines
978 B
Diff
35 lines
978 B
Diff
From 62f199ed7d1c99999030810495bd12fd5b86fee1 Mon Sep 17 00:00:00 2001
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From: Nick Wellnhofer <wellnhofer@aevum.de>
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Date: Fri, 17 Mar 2023 12:40:46 +0100
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Subject: [PATCH] malloc-fail: Add error check in htmlParseHTMLAttribute
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This function must return NULL is an error occurs.
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Found by OSS-Fuzz, see #344.
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Reference:https://github.com/GNOME/libxml2/commit/62f199ed7d1c99999030810495bd12fd5b86fee1
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Conflict:NA
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---
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HTMLparser.c | 4 ++++
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1 file changed, 4 insertions(+)
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diff --git a/HTMLparser.c b/HTMLparser.c
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index 3682807..42d1b29 100644
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--- a/HTMLparser.c
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+++ b/HTMLparser.c
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@@ -2846,6 +2846,10 @@ htmlParseHTMLAttribute(htmlParserCtxtPtr ctxt, const xmlChar stop) {
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out = &buffer[indx];
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}
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c = CUR_CHAR(l);
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+ if (ctxt->instate == XML_PARSER_EOF) {
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+ xmlFree(buffer);
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+ return(NULL);
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+ }
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if (c < 0x80)
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{ *out++ = c; bits= -6; }
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else if (c < 0x800)
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--
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2.27.0
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