SDL2/CVE-2022-4743.patch

From 00b67f55727bc0944c3266e2b875440da132ce4b Mon Sep 17 00:00:00 2001
From: zhailiangliang <zhailiangliang@loongson.cn>
Date: Wed, 21 Sep 2022 10:30:38 +0800
Subject: [PATCH] Fix potential memory leak in GLES_CreateTexture

---
 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 a5fbab309eda..ba08a46e2805 100644
--- a/src/render/opengles/SDL_render_gles.c
+++ b/src/render/opengles/SDL_render_gles.c
@@ -359,6 +359,9 @@ 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);
     }
@@ -387,6 +390,9 @@ 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);
     }