state: additional check in lxc_wait to prevent OOB

I can't see a real problem here, but let's just add a check
just in case.

Reported-by: coverity (CID #1517314)
Signed-off-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com>

diff --git a/src/lxc/state.c b/src/lxc/state.c
index 5e26855d92d1483216b4db966e84054fb5dfda33..b4de0ea50b70755ed4a420be24fcfdbf30b3d611 100644 (file)
--- a/src/lxc/state.c
+++ b/src/lxc/state.c
@@ -112,7 +112,7 @@ int lxc_wait(const char *lxcname, const char *states, int timeout,
        }
 
        TRACE("Retrieved state of container %s", lxc_state2str(state));
-       if (!s[state])
+       if ((state < STOPPED || state > MAX_STATE - 1) || !s[state])
                return -1;
 
        return 0;