diff --git a/ext/iconv/iconv.c b/ext/iconv/iconv.c
index 75f78dd174238..8ac3bc9b3c480 100644
--- a/ext/iconv/iconv.c
+++ b/ext/iconv/iconv.c
@@ -2536,7 +2536,8 @@ static php_stream_filter_status_t php_iconv_stream_filter_do_filter(
 		if (php_iconv_stream_filter_append_bucket(self, stream, filter,
 				buckets_out, bucket->buf, bucket->buflen, &consumed,
 				php_stream_is_persistent(stream)) != SUCCESS) {
-			goto out_failure;
+			php_stream_bucket_delref(bucket);
+			return PSFS_ERR_FATAL;
 		}
 
 		php_stream_bucket_delref(bucket);
@@ -2546,7 +2547,7 @@ static php_stream_filter_status_t php_iconv_stream_filter_do_filter(
 		if (php_iconv_stream_filter_append_bucket(self, stream, filter,
 				buckets_out, NULL, 0, &consumed,
 				php_stream_is_persistent(stream)) != SUCCESS) {
-			goto out_failure;
+			return PSFS_ERR_FATAL;
 		}
 	}
 
@@ -2555,12 +2556,6 @@ static php_stream_filter_status_t php_iconv_stream_filter_do_filter(
 	}
 
 	return PSFS_PASS_ON;
-
-out_failure:
-	if (bucket != NULL) {
-		php_stream_bucket_delref(bucket);
-	}
-	return PSFS_ERR_FATAL;
 }
 /* }}} */
 
diff --git a/ext/iconv/tests/gh17047.phpt b/ext/iconv/tests/gh17047.phpt
new file mode 100644
index 0000000000000..a0307ddbe5553
--- /dev/null
+++ b/ext/iconv/tests/gh17047.phpt
@@ -0,0 +1,17 @@
+--TEST--
+GH-17047 (UAF on iconv filter failure)
+--EXTENSIONS--
+iconv
+--FILE--
+<?php
+$stream = fopen('php://temp', 'w+');
+stream_filter_append($stream, 'convert.iconv.UTF-16BE.UTF-8');
+stream_filter_append($stream, 'convert.iconv.UTF-16BE.UTF-16BE');
+fputs($stream, 'test');
+rewind($stream);
+var_dump(stream_get_contents($stream));
+fclose($stream);
+?>
+--EXPECTF--
+Warning: stream_get_contents(): iconv stream filter ("UTF-16BE"=>"UTF-16BE"): invalid multibyte sequence in %s on line %d
+string(0) ""