1 files changed, 64 insertions, 0 deletions

diff --git a/meta/recipes-graphics/xorg-xserver/xserver-xorg/CVE-2022-3551.patch b/meta/recipes-graphics/xorg-xserver/xserver-xorg/CVE-2022-3551.patch
new file mode 100644
index 0000000000..a3b977aac9
--- /dev/null
+++ b/meta/recipes-graphics/xorg-xserver/xserver-xorg/CVE-2022-3551.patch
@@ -0,0 +1,64 @@
+From d3787290f56165f5656ddd2123dbf676a32d0a68 Mon Sep 17 00:00:00 2001
+From: Peter Hutterer <peter.hutterer@who-t.net>
+Date: Sun, 4 Dec 2022 17:44:00 +0000
+Subject: [PATCH 2/3] xkb: fix some possible memleaks in XkbGetKbdByName
+
+GetComponentByName returns an allocated string, so let's free that if we
+fail somewhere.
+
+Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
+
+Upstream-Status: Backport [https://cgit.freedesktop.org/xorg/xserver/commit/?id=18f91b950e22c2a342a4fbc55e9ddf7534a707d2]
+CVE: CVE-2022-3551
+Signed-off-by:Minjae Kim <flowergom@gmail.com>
+
+---
+ xkb/xkb.c | 26 +++++++++++++++++++-------
+ 1 file changed, 19 insertions(+), 7 deletions(-)
+
+diff --git a/xkb/xkb.c b/xkb/xkb.c
+index bf8aaa3..f79d306 100644
+--- a/xkb/xkb.c
++++ b/xkb/xkb.c
+@@ -5908,19 +5908,31 @@ ProcXkbGetKbdByName(ClientPtr client)
+     xkb = dev->key->xkbInfo->desc;
+     status = Success;
+     str = (unsigned char *) &stuff[1];
+-    if (GetComponentSpec(&str, TRUE, &status))  /* keymap, unsupported */
+-        return BadMatch;
++    {
++        char *keymap = GetComponentSpec(&str, TRUE, &status);  /* keymap, unsupported */
++        if (keymap) {
++            free(keymap);
++            return BadMatch;
++        }
++    }
+     names.keycodes = GetComponentSpec(&str, TRUE, &status);
+     names.types = GetComponentSpec(&str, TRUE, &status);
+     names.compat = GetComponentSpec(&str, TRUE, &status);
+     names.symbols = GetComponentSpec(&str, TRUE, &status);
+     names.geometry = GetComponentSpec(&str, TRUE, &status);
+-    if (status != Success)
+-        return status;
+-    len = str - ((unsigned char *) stuff);
+-    if ((XkbPaddedSize(len) / 4) != stuff->length)
+-        return BadLength;
++    if (status == Success) {
++        len = str - ((unsigned char *) stuff);
++        if ((XkbPaddedSize(len) / 4) != stuff->length)
++            status = BadLength;
++    }
+ 
++    if (status != Success) {
++        free(names.keycodes);
++        free(names.types);
++        free(names.compat);
++        free(names.symbols);
++        free(names.geometry);
++    }
+     CHK_MASK_LEGAL(0x01, stuff->want, XkbGBN_AllComponentsMask);
+     CHK_MASK_LEGAL(0x02, stuff->need, XkbGBN_AllComponentsMask);
+ 
+-- 
+2.17.1
+