File CVE-2019-7636.patch of Package SDL

diff --git a/src/video/SDL_bmp.c b/src/video/SDL_bmp.c
index 6f6dedf..9700500 100644
--- a/src/video/SDL_bmp.c
+++ b/src/video/SDL_bmp.c
@@ -241,6 +241,10 @@ SDL_Surface * SDL_LoadBMP_RW (SDL_RWops *src, int freesrc)
 	if ( palette ) {
 		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 ( biSize == 12 ) {
 			for ( i = 0; i < (int)biClrUsed; ++i ) {