libsdl2: fix CVE-2022-4743

(From OE-Core rev: 41e13e88dd1f9d251d1e86ee1de543165789a579)

Signed-off-by: Changqing Li <changqing.li@windriver.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 41 insertions, 0 deletions

diff --git a/meta/recipes-graphics/libsdl2/libsdl2/0001-Fix-potential-memory-leak-in-GLES_CreateTextur.patch b/meta/recipes-graphics/libsdl2/libsdl2/0001-Fix-potential-memory-leak-in-GLES_CreateTextur.patch
new file mode 100644
index 0000000000..31bda54dd3
--- /dev/null
+++ b/meta/recipes-graphics/libsdl2/libsdl2/0001-Fix-potential-memory-leak-in-GLES_CreateTextur.patch
@@ -0,0 +1,40 @@
+From 3cf2048b647484cc3a6abd0d78be60cead47b42d Mon Sep 17 00:00:00 2001
+From: Changqing Li <changqing.li@windriver.com>
+Date: Fri, 24 Feb 2023 16:59:19 +0800
+Subject: [PATCH] Fix potential memory leak in GLES_CreateTextur
+
+CVE: CVE-2022-4743
+Upstream-Status: Backport [https://github.com/libsdl-org/SDL/commit/00b67f55727bc0944c3266e2b875440da132ce4b]
+
+Signed-off-by: Changqing Li <changqing.li@windriver.com>
+---
+ src/render/opengles/SDL_render_gles.c | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+diff --git a/src/render/opengles/SDL_render_gles.c b/src/render/opengles/SDL_render_gles.c
+index a6b58f2..237b1d6 100644
+--- a/src/render/opengles/SDL_render_gles.c
++++ b/src/render/opengles/SDL_render_gles.c
+@@ -368,6 +368,9 @@ GLES_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture)
+     renderdata->glGenTextures(1, &data->texture);
+     result = renderdata->glGetError();
+     if (result != GL_NO_ERROR) {
++        if (texture->access == SDL_TEXTUREACCESS_STREAMING) {
++           SDL_free(data->pixels);
++        }
+         SDL_free(data);
+         return GLES_SetError("glGenTextures()", result);
+     }
+@@ -396,6 +399,9 @@ GLES_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture)
+ 
+     result = renderdata->glGetError();
+     if (result != GL_NO_ERROR) {
++        if (texture->access == SDL_TEXTUREACCESS_STREAMING) {
++            SDL_free(data->pixels);
++        }
+         SDL_free(data);
+         return GLES_SetError("glTexImage2D()", result);
+     }
+-- 
+2.25.1
+
diff --git a/meta/recipes-graphics/libsdl2/libsdl2_2.0.20.bb b/meta/recipes-graphics/libsdl2/libsdl2_2.0.20.bb
index c1c827af79..abcf232e25 100644
--- a/meta/recipes-graphics/libsdl2/libsdl2_2.0.20.bb
+++ b/meta/recipes-graphics/libsdl2/libsdl2_2.0.20.bb
@@ -24,6 +24,7 @@ PROVIDES = "virtual/libsdl2"
 SRC_URI = "http://www.libsdl.org/release/SDL2-${PV}.tar.gz \
            file://optional-libunwind-generic.patch \
            file://0001-sdlchecks.cmake-pass-cflags-to-the-appropriate-cmake.patch \
+           file://0001-Fix-potential-memory-leak-in-GLES_CreateTextur.patch \
            "
 SRC_URI:append:class-native = " file://0001-Disable-libunwind-in-native-OE-builds-by-not-looking.patch"