From: Michael Wallner <mike@php.net>
Date: Fri, 2 Mar 2018 12:35:52 +0000 (+0100)
Subject: fix segfault if filter could not be located
X-Git-Tag: RELEASE_3_2_0_RC1~11
X-Git-Url: https://git.m6w6.name/?a=commitdiff_plain;h=10bbc389d50be796cafeea66562a5558f21d2a9f;p=m6w6%2Fext-http

fix segfault if filter could not be located
---

diff --git a/src/php_http_env_response.c b/src/php_http_env_response.c
index ab959f3..40ef4fe 100644
--- a/src/php_http_env_response.c
+++ b/src/php_http_env_response.c
@@ -938,7 +938,9 @@ static ZEND_RESULT_CODE php_http_env_response_stream_start(php_http_env_response
 
 	if (ctx->chunked) {
 		ctx->chunked_filter = php_stream_filter_create("http.chunked_encode", NULL, 0);
-		php_stream_filter_append(&ctx->stream->writefilters, ctx->chunked_filter);
+		if (ctx->chunked_filter) {
+			php_stream_filter_append(&ctx->stream->writefilters, ctx->chunked_filter);
+		}
 	}
 
 	return ctx->started ? SUCCESS : FAILURE;