expat/backport-xmlparse.c-Fix-reading-uninitialized-variable-404.patch

57 lines
2.0 KiB
Diff

From 13bb381d296ef8da09a3f00f5b23724b5deb6a38 Mon Sep 17 00:00:00 2001w
From: Sebastian Pipping <sebastian@pipping.org>
Date: Wed, 27 May 2020 20:28:06 +0200
Subject: [PATCH] xmlparse.c: Fix reading uninitialized variable (#404)
---
Changes | 3 +++
lib/xmlparse.c | 4 ++--
2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/Changes b/Changes
index a642bf6..72c1f13 100644
--- a/Changes
+++ b/Changes
@@ -18,6 +18,7 @@ Release 2.2.9 Wed Septemper 25 2019
Bug fixes:
#390 #395 Fix undefined behavior during parsing when compiled with
-DXML_UNICODE that was introduced with Expat 2.0.1
+ #404 Fix reading uninitialized variable during parsing
New features:
#34 #466 #484 Add two new API functions to further tighten billion laughs
@@ -55,6 +56,8 @@ Release 2.2.9 Wed Septemper 25 2019
Clang LeakSan
JetBrains
OSS-Fuzz
+ and
+ Cppcheck 2.0 and the Cppcheck team
Release 2.2.8 Fri Septemper 13 2019
Security fixes:
diff --git a/lib/xmlparse.c b/lib/xmlparse.c
index f2ad416..03da172 100644
--- a/lib/xmlparse.c
+++ b/lib/xmlparse.c
@@ -3732,7 +3732,7 @@ doCdataSection(XML_Parser parser, const ENCODING *enc, const char **startPtr,
*startPtr = NULL;
for (;;) {
- const char *next;
+ const char *next = s; /* in case of XML_TOK_NONE or XML_TOK_PARTIAL */
int tok = XmlCdataSectionTok(enc, s, end, &next);
#ifdef XML_DTD
if (! accountingDiffTolerated(parser, tok, s, next, __LINE__, account)) {
@@ -3858,7 +3858,7 @@ ignoreSectionProcessor(XML_Parser parser, const char *start, const char *end,
static enum XML_Error
doIgnoreSection(XML_Parser parser, const ENCODING *enc, const char **startPtr,
const char *end, const char **nextPtr, XML_Bool haveMore) {
- const char *next;
+ const char *next = *startPtr; /* in case of XML_TOK_NONE or XML_TOK_PARTIAL */
int tok;
const char *s = *startPtr;
const char **eventPP;
--
1.8.3.1