Fix #815, gd_topal, explicit null dereferenced (kind of false positiv… (

#816) * Fix #815, gd_topal, explicit null dereferenced (kind of false positive however it does hurt to add that check) * Fix #815, != NULL
libgd · Jan 31, 2022 · 077d8e7 · 077d8e7
1 parent bdd6919
commit 077d8e7
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/gd_topal.c b/src/gd_topal.c
@@ -1703,6 +1703,9 @@ static int gdImageTrueColorToPaletteBody (gdImagePtr oim, int dither, int colors
 	select_colors (oim, nim, cquantize, colorsWanted);
 	zeroHistogram (cquantize->histogram);
 	if (dither) {
+		if (cquantize->error_limiter == NULL) {
+			goto outOfMemory;
+		}
 		pass2_fs_dither (oim, nim, cquantize);
 	} else {
 		pass2_no_dither (oim, nim, cquantize);