diff options
Diffstat (limited to 'net/netrom')
| -rw-r--r-- | net/netrom/af_netrom.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c index 6d9c58ec56ac..d1c16bbee932 100644 --- a/net/netrom/af_netrom.c +++ b/net/netrom/af_netrom.c @@ -1086,7 +1086,11 @@ 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; |