fix out-of-bounds case in parser

1 files changed, 4 insertions, 2 deletions

diff --git a/src/testbed/testbed_api_topology.c b/src/testbed/testbed_api_topology.c
index a21a7cf53..544f127a9 100644
--- a/src/testbed/testbed_api_topology.c
+++ b/src/testbed/testbed_api_topology.c
@@ -1147,9 +1147,11 @@ gen_topo_from_file (struct TopologyContext *tc,
              other_peer_id);
       while (('\n' != data[offset]) && ('|' != data[offset]) && (offset < fs))
         offset++;
-      if ('\n' == data[offset])
+      if ( (offset < fs) &&
+           ('\n' == data[offset]) )
         state = PEER_INDEX;
-      else if ('|' == data[offset])
+      else if ( (offset < fs) &&
+                ('|' == data[offset]) )
       {
         state = OTHER_PEER_INDEX;
         offset++;