From: Sage Weil <sage@redhat.com>
Date: Fri, 27 Mar 2015 04:00:00 +0000 (-0700)
Subject: cls_rbd: fix read past end of bufferlist c_str() in debug log msg
X-Git-Tag: v9.0.0~78^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=ea32960f583ca4294b4e62a7db4a26abbcce3683;p=ceph.git

cls_rbd: fix read past end of bufferlist c_str() in debug log msg

Fixes: #11250
Signed-off-by: Sage Weil <sage@redhat.com>
---

diff --git a/src/cls/rbd/cls_rbd.cc b/src/cls/rbd/cls_rbd.cc
index bedb6e5d39f5..ba57e642390a 100644
--- a/src/cls/rbd/cls_rbd.cc
+++ b/src/cls/rbd/cls_rbd.cc
@@ -2228,7 +2228,8 @@ int metadata_set(cls_method_context_t hctx, bufferlist *in, bufferlist *out)
 
   for (map<string, bufferlist>::iterator it = data.begin();
        it != data.end(); ++it) {
-    CLS_LOG(20, "metdata_set key=%s value=%s", it->first.c_str(), it->second.c_str());
+    CLS_LOG(20, "metdata_set key=%s value=%.*s", it->first.c_str(),
+	    it->second.length(), it->second.c_str());
     raw_data[metadata_key_for_name(it->first)].swap(it->second);
   }
   int r = cls_cxx_map_set_vals(hctx, &raw_data);