From: Timo Sirainen <timo.sirainen@open-xchange.com>
Date: Tue, 17 Jan 2023 06:44:55 +0000 (+0200)
Subject: lib-http: server - Fix potential crash with previous change on client disconnect
X-Git-Tag: 2.3.21~116
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=cb666c441a5e61ba526bdda0b05118f65ca4b3e4;p=thirdparty%2Fdovecot%2Fcore.git

lib-http: server - Fix potential crash with previous change on client disconnect

Broken by 1418d1e9018fc34287722467c6ee506f3e378e1a
---

diff --git a/src/lib-http/http-server-response.c b/src/lib-http/http-server-response.c
index 21722f6293..e5bf5f5e07 100644
--- a/src/lib-http/http-server-response.c
+++ b/src/lib-http/http-server-response.c
@@ -357,7 +357,8 @@ int http_server_response_finish_payload_out(struct http_server_response *resp)
 		o_stream_unref(&resp->payload_output);
 		resp->payload_output = NULL;
 	}
-	if (o_stream_get_buffer_used_size(conn->conn.output) > 0) {
+	if (conn->conn.output != NULL &&
+	    o_stream_get_buffer_used_size(conn->conn.output) > 0) {
 		e_debug(resp->event,
 			"Not quite finished sending response");
 		conn->output_locked = TRUE;