DivestOS/Patches/LineageOS-20.0/android_external_expat/0001-lib-Reject-negative-len-for-XML_ParseBuffer.patch
Tavi 3f55f4df58
Pull in some expat CVE patches
CVE-2024-28757
CVE-2024-45490
CVE-2024-45491
CVE-2024-45492

Signed-off-by: Tavi <tavi@divested.dev>
2024-09-04 12:50:50 -04:00

28 lines
793 B
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Sebastian Pipping <sebastian@pipping.org>
Date: Mon, 19 Aug 2024 22:26:07 +0200
Subject: [PATCH 1/5] lib: Reject negative len for XML_ParseBuffer
Reported by TaiYou
---
lib/xmlparse.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/lib/xmlparse.c b/lib/xmlparse.c
index 7e981919..dacbc7ad 100644
--- a/lib/xmlparse.c
+++ b/lib/xmlparse.c
@@ -1982,6 +1982,12 @@ XML_ParseBuffer(XML_Parser parser, int len, int isFinal) {
if (parser == NULL)
return XML_STATUS_ERROR;
+
+ if (len < 0) {
+ parser->m_errorCode = XML_ERROR_INVALID_ARGUMENT;
+ return XML_STATUS_ERROR;
+ }
+
switch (parser->m_parsingStatus.parsing) {
case XML_SUSPENDED:
parser->m_errorCode = XML_ERROR_SUSPENDED;