From: Jianpeng Ma <jianpeng.ma@intel.com>
Date: Wed, 21 Jan 2015 08:03:16 +0000 (+0800)
Subject: bufferptr: Make set_offset() don't beyond the length.
X-Git-Tag: v9.0.1~36^2~2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=dfccd3d19cd07b104a92b50815119e2e4c75b75e;p=ceph.git

bufferptr: Make set_offset() don't beyond the length.

Signed-off-by: Jianpeng Ma <jianpeng.ma@intel.com>
---

diff --git a/src/include/buffer.h b/src/include/buffer.h
index cf744b042d1..f9683a335ad 100644
--- a/src/include/buffer.h
+++ b/src/include/buffer.h
@@ -236,7 +236,10 @@ public:
     bool is_zero() const;
 
     // modifiers
-    void set_offset(unsigned o) { _off = o; }
+    void set_offset(unsigned o) {
+      assert(_len >= o);
+      _off = o;
+    }
     void set_length(unsigned l) {
       assert(raw_length() >= l);
       _len = l;