From: Sage Weil <sage@newdream.net>
Date: Tue, 16 Aug 2011 23:37:20 +0000 (-0700)
Subject: osd: pg_stat_t: throw exception on unknown encoding
X-Git-Tag: v0.33~1
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=89eeb34e650829f772f584c6db23cf6c5e503b24;p=ceph.git

osd: pg_stat_t: throw exception on unknown encoding

This is better then decoding nonsense, eating ram, etc.

Signed-off-by: Sage Weil <sage@newdream.net>
---

diff --git a/src/osd/osd_types.h b/src/osd/osd_types.h
index ab07b1bb10e2..997793c022ac 100644
--- a/src/osd/osd_types.h
+++ b/src/osd/osd_types.h
@@ -993,6 +993,8 @@ struct pg_stat_t {
   void decode(bufferlist::iterator &bl) {
     __u8 v;
     ::decode(v, bl);
+    if (v > 4)
+      throw buffer::malformed_input("unknown pg_stat_t encoding version > 4");
 
     ::decode(version, bl);
     ::decode(reported, bl);