fix leaks

Author: devnexen

ext/gd/gd.c

@@ -4115,6 +4115,7 @@ static void _php_image_output_ctx(INTERNAL_FUNCTION_PARAMETERS, int image_type,
 		case PHP_GDIMG_TYPE_WEBP:
 			if (quality < -1) {
 				zend_argument_value_error(3, "must be at least -1");
+				ctx->gd_free(ctx);
 				RETURN_THROWS();
 			} else if (quality == -1) {
 				quality = 80;
@@ -4126,10 +4127,12 @@ static void _php_image_output_ctx(INTERNAL_FUNCTION_PARAMETERS, int image_type,
 		case PHP_GDIMG_TYPE_AVIF:
 			if (quality < -1 || quality > 100) {
 				zend_argument_value_error(3, "must be between -1 and 100");
+				ctx->gd_free(ctx);
 				RETURN_THROWS();
 			}
 			if (speed < -1 || speed > 10) {
 				zend_argument_value_error(4, "must be between -1 and 10");
+				ctx->gd_free(ctx);
 				RETURN_THROWS();
 			} else if (speed == -1) {
 				speed = 6;
@@ -4141,6 +4144,7 @@ static void _php_image_output_ctx(INTERNAL_FUNCTION_PARAMETERS, int image_type,
 		case PHP_GDIMG_TYPE_PNG:
 			if (quality < -1 || quality > 9) {
 				zend_argument_value_error(3, "must be between -1 and 9");
+				ctx->gd_free(ctx);
 				RETURN_THROWS();
 			}
 #ifdef HAVE_GD_BUNDLED