File CVE-2019-7636.patch of Package SDL2.23596

diff --git a/src/video/SDL_bmp.c b/src/video/SDL_bmp.c
index 78a9904..bf29f78 100644
--- a/src/video/SDL_bmp.c
+++ b/src/video/SDL_bmp.c
@@ -321,6 +321,10 @@ SDL_LoadBMP_RW(SDL_RWops * src, int freesrc)
         SDL_assert(biBitCount <= 8);
         if (biClrUsed == 0) {
             biClrUsed = 1 << biBitCount;
+        } else if ( biClrUsed > (1 << biBitCount) ) {
+            SDL_SetError("BMP file has an invalid number of colors");
+            was_error = SDL_TRUE;
+            goto done;
         }
         if ((int) biClrUsed > palette->ncolors) {
             SDL_Color *colors;