From: Jianpeng Ma <jianpeng.ma@intel.com>
Date: Thu, 9 Apr 2015 03:13:33 +0000 (+0800)
Subject: librados: For WRITEFULL, check data length don't larger that limit.
X-Git-Tag: v9.0.2~193^2~2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=4ed66a6519ea4060050ea9f6d6b158873d9706bc;p=ceph.git

librados: For WRITEFULL, check data length don't larger that limit.

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

diff --git a/src/librados/IoCtxImpl.cc b/src/librados/IoCtxImpl.cc
index 5ef56c0ec7fc..15ebc6fd8dc2 100644
--- a/src/librados/IoCtxImpl.cc
+++ b/src/librados/IoCtxImpl.cc
@@ -468,6 +468,8 @@ int librados::IoCtxImpl::append(const object_t& oid, bufferlist& bl, size_t len)
 
 int librados::IoCtxImpl::write_full(const object_t& oid, bufferlist& bl)
 {
+  if (bl.length() > UINT_MAX/2)
+    return -E2BIG;
   ::ObjectOperation op;
   prepare_assert_ops(&op);
   op.write_full(bl);