libxml2/backport-malloc-fail-Fix-memory-leak-in-xmlCopyNamespaceList.patch
zhuofeng feb7e8218d backport upstream patches
(cherry picked from commit ec64ed27a9add0f7a9bf6ee351ad67302a60c383)
2023-06-20 11:16:46 +08:00

32 lines
782 B
Diff

From dbc893f5885cf60f9ebed89c363ff810bde3ebb5 Mon Sep 17 00:00:00 2001
From: Nick Wellnhofer <wellnhofer@aevum.de>
Date: Fri, 3 Mar 2023 13:02:11 +0100
Subject: [PATCH] malloc-fail: Fix memory leak in xmlCopyNamespaceList
Found with libFuzzer, see #344.
Reference:https://github.com/GNOME/libxml2/commit/dbc893f5885cf60f9ebed89c363ff810bde3ebb5
Conflict:NA
---
tree.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/tree.c b/tree.c
index 4a80e28..14d5247 100644
--- a/tree.c
+++ b/tree.c
@@ -4046,6 +4046,10 @@ xmlCopyNamespaceList(xmlNsPtr cur) {
while (cur != NULL) {
q = xmlCopyNamespace(cur);
+ if (q == NULL) {
+ xmlFreeNsList(ret);
+ return(NULL);
+ }
if (p == NULL) {
ret = p = q;
} else {
--
2.27.0