Description: Fixed TALOS-2019-0842 - XCF Image Code Execution Vulnerability
 This patch addresses a bug in a previous security patch for CVE-2018-3977.
 The initial patch failing to address this issue, the bug was "re-discovered"
 later and addressed CVE-2019-5058.
Author: Sam Lantinga <slouken@libsdl.org>
Origin: upstream, https://hg.libsdl.org/SDL_image/rev/b1a80aec2b10
--- a/IMG_xcf.c	2018-10-31 15:58:52.000000000 +0100
+++ b/IMG_xcf.c	2019-08-08 15:10:49.739882762 +0200
@@ -642,7 +642,7 @@
             p16 = (Uint16 *) p8;
             p = (Uint32 *) p8;
             for (y = ty; y < ty + oy; y++) {
-                if ((ty >= surface->h) || ((tx+ox) > surface->w)) {
+                if ((y >= surface->h) || ((tx+ox) > surface->w)) {
                     break;
                 }
                 row = (Uint32 *) ((Uint8 *) surface->pixels + y * surface->pitch + tx * 4);