Check ssh->v2_session_id_len _after_ assigning to it.

[u/mdw/putty] / ssh.c

diff --git a/ssh.c b/ssh.c
index 22cea9f..763e1fd 100644 (file)
--- a/ssh.c
+++ b/ssh.c
@@ -5602,8 +5602,8 @@ static int do_ssh2_transport(Ssh ssh, void *vin, int inlen,
        assert(sizeof(s->exchange_hash) <= sizeof(ssh->v2_session_id));
        memcpy(ssh->v2_session_id, s->exchange_hash,
               sizeof(s->exchange_hash));
-       assert(ssh->v2_session_id_len <= sizeof(ssh->v2_session_id));
        ssh->v2_session_id_len = ssh->kex->hash->hlen;
+       assert(ssh->v2_session_id_len <= sizeof(ssh->v2_session_id));
        s->got_session_id = TRUE;
     }