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authorMykola Salomatin <mykola.salomatin@globallogic.com>2023-01-26 19:30:38 +0200
committerMykola Salomatin <mykola.salomatin@globallogic.com>2023-01-26 19:30:38 +0200
commit8b2c5033c01df17ce1bed9489570a5e56e3be862 (patch)
tree8a7abda338d1c144e904cd54e6ab99322119969e /recipes-core/libxml/libxml2/CVE-2019-20388.patch
parente77d906d6f9d0da38ab5faff8b2a11a4383650de (diff)
parent755c00a4dfc34c95640e832ca8cafb71a7d356aa (diff)
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Merge branch '6' into mpower-dev-l6g1
Diffstat (limited to 'recipes-core/libxml/libxml2/CVE-2019-20388.patch')
-rw-r--r--recipes-core/libxml/libxml2/CVE-2019-20388.patch37
1 files changed, 37 insertions, 0 deletions
diff --git a/recipes-core/libxml/libxml2/CVE-2019-20388.patch b/recipes-core/libxml/libxml2/CVE-2019-20388.patch
new file mode 100644
index 0000000..88eb65a
--- /dev/null
+++ b/recipes-core/libxml/libxml2/CVE-2019-20388.patch
@@ -0,0 +1,37 @@
+From 7ffcd44d7e6c46704f8af0321d9314cd26e0e18a Mon Sep 17 00:00:00 2001
+From: Zhipeng Xie <xiezhipeng1@huawei.com>
+Date: Tue, 20 Aug 2019 16:33:06 +0800
+Subject: [PATCH] Fix memory leak in xmlSchemaValidateStream
+
+When ctxt->schema is NULL, xmlSchemaSAXPlug->xmlSchemaPreRun
+alloc a new schema for ctxt->schema and set vctxt->xsiAssemble
+to 1. Then xmlSchemaVStart->xmlSchemaPreRun initialize
+vctxt->xsiAssemble to 0 again which cause the alloced schema
+can not be freed anymore.
+
+Found with libFuzzer.
+
+Upstream-Status: Backport [https://gitlab.gnome.org/GNOME/libxml2/commit/7ffcd44d7e6c46704f8af0321d9314cd26e0e18a]
+CVE: CVE-2019-20388
+
+Signed-off-by: Zhipeng Xie <xiezhipeng1@huawei.com>
+Signed-off-by: Lee Chee Yang <chee.yang.lee@intel.com>
+---
+ xmlschemas.c | 1 -
+ 1 file changed, 1 deletion(-)
+
+diff --git a/xmlschemas.c b/xmlschemas.c
+index 301c8449..39d92182 100644
+--- a/xmlschemas.c
++++ b/xmlschemas.c
+@@ -28090,7 +28090,6 @@ xmlSchemaPreRun(xmlSchemaValidCtxtPtr vctxt) {
+ vctxt->nberrors = 0;
+ vctxt->depth = -1;
+ vctxt->skipDepth = -1;
+- vctxt->xsiAssemble = 0;
+ vctxt->hasKeyrefs = 0;
+ #ifdef ENABLE_IDC_NODE_TABLES_TEST
+ vctxt->createIDCNodeTables = 1;
+--
+2.24.1
+