From: Daniel Veillard <veillard@redhat.com>
Date: Thu, 3 Mar 2011 07:45:52 +0000 (+0800)
Subject: Fix a counter bug in the log buffer
X-Git-Tag: CVE-2011-1146~67
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=35708ec151466c25bed427fcdd6071160c6cb707;p=thirdparty%2Flibvirt.git

Fix a counter bug in the log buffer

* src/util/logging.c: the start pointer need to wrap around too
---

diff --git a/src/util/logging.c b/src/util/logging.c
index 33b09921bb..b946285ea1 100644
--- a/src/util/logging.c
+++ b/src/util/logging.c
@@ -271,6 +271,8 @@ static void virLogStr(const char *str, int len) {
         tmp = virLogLen - LOG_BUFFER_SIZE;
         virLogLen = LOG_BUFFER_SIZE;
         virLogStart += tmp;
+        if (virLogStart >= LOG_BUFFER_SIZE)
+            virLogStart -= LOG_BUFFER_SIZE;
     }
     virLogUnlock();
 }