Merge branch 'master' of ssh://master.kernel.org/home/ftp/pub/scm/linux/kernel/git...

[mv-sheeva.git] / net / netrom / af_netrom.c

diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index cba7849de98e26988d93bd4ee6058be4ce7f0558..4e705f87969f332c30939dc8acabd4f8d4d74352 100644 (file)
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -1082,7 +1082,11 @@ static int nr_sendmsg(struct kiocb *iocb, struct socket *sock,
 
        SOCK_DEBUG(sk, "NET/ROM: sendto: Addresses built.\n");
 
-       /* Build a packet */
+       /* Build a packet - the conventional user limit is 236 bytes. We can
+          do ludicrously large NetROM frames but must not overflow */
+       if (len > 65536)
+               return -EMSGSIZE;
+
        SOCK_DEBUG(sk, "NET/ROM: sendto: building packet.\n");
        size = len + NR_NETWORK_LEN + NR_TRANSPORT_LEN;