xfrm_user: validate XFRM_MSG_NEWAE XFRMA_REPLAY_ESN_VAL replay_window

[pandora-kernel.git] / net / xfrm / xfrm_user.c

diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 0954224..a0daa32 100644 (file)
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -393,6 +393,9 @@ static inline int xfrm_replay_verify_len(struct xfrm_replay_state_esn *replay_es
        if (nla_len(rp) < ulen || xfrm_replay_state_esn_len(replay_esn) != ulen)
                return -EINVAL;
 
+       if (up->replay_window > up->bmp_len * sizeof(__u32) * 8)
+               return -EINVAL;
+
        return 0;
 }