diff options
| -rw-r--r-- | net/tipc/socket.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/tipc/socket.c b/net/tipc/socket.c index 893ca6eb5b4..125dcb0737b 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -493,6 +493,8 @@ static int dest_name_check(struct sockaddr_tipc *dest, struct msghdr *m) if (likely(dest->addr.name.name.type != TIPC_CFG_SRV)) return -EACCES; + if (!m->msg_iovlen || (m->msg_iov[0].iov_len < sizeof(hdr))) + return -EMSGSIZE; if (copy_from_user(&hdr, m->msg_iov[0].iov_base, sizeof(hdr))) return -EFAULT; if ((ntohs(hdr.tcm_type) & 0xC000) && (!capable(CAP_NET_ADMIN))) |