diff --git a/ext/gd/libgd/gd.c b/ext/gd/libgd/gd.c
index 71a0e9ea63f2..9563354a99d8 100644
--- a/ext/gd/libgd/gd.c
+++ b/ext/gd/libgd/gd.c
@@ -2879,12 +2879,12 @@ void gdImageFilledPolygon (gdImagePtr im, gdPointPtr p, int n, int c)
 
 void gdImageSetStyle (gdImagePtr im, int *style, int noOfPixels)
 {
-	if (im->style) {
-		gdFree(im->style);
-	}
 	if (overflow2(sizeof (int), noOfPixels)) {
 		return;
 	}
+	if (im->style) {
+		gdFree(im->style);
+	}
 	im->style = (int *) gdMalloc(sizeof(int) * noOfPixels);
 	memcpy(im->style, style, sizeof(int) * noOfPixels);
 	im->styleLength = noOfPixels;