libxml2/backport-malloc-fail-Fix-memory-leak-in-xmlCompileAttributeTe.patch

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2024-05-06 16:07:19 +08:00
From 75693281389aab047b424d46df944b35ab4a3263 Mon Sep 17 00:00:00 2001
From: Nick Wellnhofer <wellnhofer@aevum.de>
Date: Fri, 21 Jul 2023 14:50:30 +0200
Subject: [PATCH] malloc-fail: Fix memory leak in xmlCompileAttributeTest
Found by OSS-Fuzz, see #344.
Reference:https://github.com/GNOME/libxml2/commit/75693281389aab047b424d46df944b35ab4a3263
Conflict:NA
---
pattern.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/pattern.c b/pattern.c
index 27e9694..64231a2 100644
--- a/pattern.c
+++ b/pattern.c
@@ -947,7 +947,6 @@ xmlCompileAttributeTest(xmlPatParserContextPtr ctxt) {
if (IS_BLANK_CH(CUR)) {
ERROR5(NULL, NULL, NULL, "Invalid QName.\n", NULL);
- XML_PAT_FREE_STRING(ctxt, prefix);
ctxt->error = 1;
goto error;
}
@@ -972,12 +971,12 @@ xmlCompileAttributeTest(xmlPatParserContextPtr ctxt) {
ERROR5(NULL, NULL, NULL,
"xmlCompileAttributeTest : no namespace bound to prefix %s\n",
prefix);
- XML_PAT_FREE_STRING(ctxt, prefix);
ctxt->error = 1;
goto error;
}
}
- XML_PAT_FREE_STRING(ctxt, prefix);
+ XML_PAT_FREE_STRING(ctxt, name);
+ name = NULL;
if (token == NULL) {
if (CUR == '*') {
NEXT;
@@ -996,6 +995,8 @@ xmlCompileAttributeTest(xmlPatParserContextPtr ctxt) {
}
return;
error:
+ if (name != NULL)
+ XML_PAT_FREE_STRING(ctxt, name);
if (URL != NULL)
XML_PAT_FREE_STRING(ctxt, URL)
if (token != NULL)
--
2.33.0