1 files changed, 2 insertions, 1 deletions
diff --git a/ace/ACE.cpp b/ace/ACE.cpp
index 19060e5e619..983c7747167 100644
--- a/ace/ACE.cpp
+++ b/ace/ACE.cpp
@@ -1037,7 +1037,8 @@ ACE::recvv_n_i (ACE_HANDLE handle,
         {
           char *base = static_cast<char *> (iov[s].iov_base);
           iov[s].iov_base = base + n;
-          iov[s].iov_len = iov[s].iov_len - n;
+          // This blind cast is safe because n < iov_len, after above loop.
+          iov[s].iov_len = iov[s].iov_len - static_cast<u_long> (n);
         }
     }