From: Cliff Woolley <jwoolley@apache.org>
Date: Tue, 23 Oct 2001 09:41:54 +0000 (+0000)
Subject: Fix a segfault seen on daedalus earlier this evening.  All that was happening
X-Git-Tag: 2.0.27~41
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=79403ed8e0bc7a41a7cbb9c290582d413385a620;p=thirdparty%2Fapache%2Fhttpd.git

Fix a segfault seen on daedalus earlier this evening.  All that was happening
was that we forgot to check whether ctx->bb was empty, so when we pulled the
first bucket, it would be the sentinel, and we'd segfault trying to apr_bucket_read
the sentinel.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@91641 13f79535-47bb-0310-9956-ffa450edef68
---

diff --git a/server/core.c b/server/core.c
index d62f8c38efa..dd572a98d5b 100644
--- a/server/core.c
+++ b/server/core.c
@@ -2871,6 +2871,9 @@ static int core_input_filter(ap_filter_t *f, apr_bucket_brigade *b, ap_input_mod
         apr_bucket *e;
         apr_bucket_brigade *newbb;
 
+        if (APR_BRIGADE_EMPTY(ctx->b))
+            return APR_EOF;
+
         e = APR_BRIGADE_FIRST(ctx->b);
         rv = apr_bucket_read(e, &str, &len, mode);