check session bounds correctly

interro-egg · Feb 4, 2022 · c8e0ef6 · c8e0ef6
1 parent 5daaf64
commit c8e0ef6
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/fs/tfs_server.c b/fs/tfs_server.c
@@ -86,7 +86,7 @@ int take_session() {
 }
 
 int free_session(int session_id) {
-  if (session_id < 0 || session_id > MAX_SESSION_COUNT)
+  if (session_id < 0 || session_id >= MAX_SESSION_COUNT)
     return -1;
   lock_mutex(&free_sessions_lock);
   free_sessions[session_id] = FREE;