1 files changed, 38 insertions, 0 deletions

diff --git a/meta/recipes-graphics/libsdl2/libsdl2/CVE-2021-33657.patch b/meta/recipes-graphics/libsdl2/libsdl2/CVE-2021-33657.patch
new file mode 100644
index 0000000000..a4ed7ab8e6
--- /dev/null
+++ b/meta/recipes-graphics/libsdl2/libsdl2/CVE-2021-33657.patch
@@ -0,0 +1,38 @@
+From 8c91cf7dba5193f5ce12d06db1336515851c9ee9 Mon Sep 17 00:00:00 2001
+From: Sam Lantinga <slouken@libsdl.org>
+Date: Tue, 30 Nov 2021 12:36:46 -0800
+Subject: [PATCH] Always create a full 256-entry map in case color values are
+ out of range
+
+Fixes https://github.com/libsdl-org/SDL/issues/5042
+
+CVE: CVE-2021-33657
+Upstream-Status: Backport [https://github.com/libsdl-org/SDL/commit/8c91cf7dba5193f5ce12d06db1336515851c9ee9.patch]
+Signed-off-by: Ranjitsinh Rathod <ranjitsinh.rathod@kpit.com>
+
+---
+ src/video/SDL_pixels.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/src/video/SDL_pixels.c b/src/video/SDL_pixels.c
+index ac04533c5d5..9bb02f771d0 100644
+--- a/src/video/SDL_pixels.c
++++ b/src/video/SDL_pixels.c
+@@ -947,7 +947,7 @@ Map1to1(SDL_Palette * src, SDL_Palette * dst, int *identical)
+         }
+         *identical = 0;
+     }
+-    map = (Uint8 *) SDL_malloc(src->ncolors);
++    map = (Uint8 *) SDL_calloc(256, sizeof(Uint8));
+     if (map == NULL) {
+         SDL_OutOfMemory();
+         return (NULL);
+@@ -971,7 +971,7 @@ Map1toN(SDL_PixelFormat * src, Uint8 Rmod, Uint8 Gmod, Uint8 Bmod, Uint8 Amod,
+     SDL_Palette *pal = src->palette;
+ 
+     bpp = ((dst->BytesPerPixel == 3) ? 4 : dst->BytesPerPixel);
+-    map = (Uint8 *) SDL_malloc(pal->ncolors * bpp);
++    map = (Uint8 *) SDL_calloc(256, bpp);
+     if (map == NULL) {
+         SDL_OutOfMemory();
+         return (NULL);