Make sure namelen fits into buffer allocated on stack

diff --git a/daemons/clvmd/clvmd.c b/daemons/clvmd/clvmd.c
index dc81fcbf122128f24cf1f67a5793bf582db2bf1f..dff735112f61d27c86baaccdd9e8d5f5969eb860 100644 (file)
--- a/daemons/clvmd/clvmd.c
+++ b/daemons/clvmd/clvmd.c
@@ -2323,6 +2323,9 @@ static if_type_t get_cluster_type(void)
         if (result != CS_OK)
                goto out;
 
+       if (namelen >= sizeof(buf))
+               namelen = sizeof(buf) - 1;
+
        buf[namelen] = '\0';
        type = parse_cluster_interface(buf);
        DEBUGLOG("got interface type '%s' from confdb\n", buf);