prevent crash when connection closed before complete request received

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@87478 13f79535-47bb-0310-9956-ffa450edef68

diff --git a/modules/http/http_protocol.c b/modules/http/http_protocol.c
index 079677d595b50ff9a305d7146aaca763b7a10a9d..594559b1338a3157d4a2b95f3946c83942ff5cc9 100644 (file)
--- a/modules/http/http_protocol.c
+++ b/modules/http/http_protocol.c
@@ -969,6 +969,10 @@ apr_status_t ap_http_filter(ap_filter_t *f, ap_bucket_brigade *b, ap_input_mode_
         const char *str;
         apr_size_t length;
 
+        if (AP_BRIGADE_EMPTY(ctx->b)) {
+            return APR_EOF;
+        }
+
         e = AP_BRIGADE_FIRST(ctx->b);
         while (e->length == 0) {
             AP_BUCKET_REMOVE(e);