diff options
Diffstat (limited to 'net/tipc/socket.c')
| -rw-r--r-- | net/tipc/socket.c | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/net/tipc/socket.c b/net/tipc/socket.c index 29d94d5..3388373 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -535,6 +535,9 @@ static int send_msg(struct kiocb *iocb, struct socket *sock, if (unlikely((m->msg_namelen < sizeof(*dest)) || (dest->family != AF_TIPC))) return -EINVAL; + if ((total_len > TIPC_MAX_USER_MSG_SIZE) || + (m->msg_iovlen > (unsigned)INT_MAX)) + return -EMSGSIZE; if (iocb) lock_sock(sk); @@ -573,12 +576,14 @@ static int send_msg(struct kiocb *iocb, struct socket *sock, &dest->addr.name.name, dest->addr.name.domain, m->msg_iovlen, - m->msg_iov); + m->msg_iov, + total_len); } else if (dest->addrtype == TIPC_ADDR_ID) { res = tipc_send2port(tport->ref, &dest->addr.id, m->msg_iovlen, - m->msg_iov); + m->msg_iov, + total_len); } else if (dest->addrtype == TIPC_ADDR_MCAST) { if (needs_conn) { res = -EOPNOTSUPP; @@ -590,7 +595,8 @@ static int send_msg(struct kiocb *iocb, struct socket *sock, res = tipc_multicast(tport->ref, &dest->addr.nameseq, m->msg_iovlen, - m->msg_iov); + m->msg_iov, + total_len); } if (likely(res != -ELINKCONG)) { if (needs_conn && (res >= 0)) @@ -640,6 +646,10 @@ static int send_packet(struct kiocb *iocb, struct socket *sock, if (unlikely(dest)) return send_msg(iocb, sock, m, total_len); + if ((total_len > TIPC_MAX_USER_MSG_SIZE) || + (m->msg_iovlen > (unsigned)INT_MAX)) + return -EMSGSIZE; + if (iocb) lock_sock(sk); @@ -652,7 +662,8 @@ static int send_packet(struct kiocb *iocb, struct socket *sock, break; } - res = tipc_send(tport->ref, m->msg_iovlen, m->msg_iov); + res = tipc_send(tport->ref, m->msg_iovlen, m->msg_iov, + total_len); if (likely(res != -ELINKCONG)) break; if (m->msg_flags & MSG_DONTWAIT) { @@ -723,6 +734,12 @@ static int send_stream(struct kiocb *iocb, struct socket *sock, goto exit; } + if ((total_len > (unsigned)INT_MAX) || + (m->msg_iovlen > (unsigned)INT_MAX)) { + res = -EMSGSIZE; + goto exit; + } + /* * Send each iovec entry using one or more messages * @@ -753,7 +770,7 @@ static int send_stream(struct kiocb *iocb, struct socket *sock, bytes_to_send = curr_left; my_iov.iov_base = curr_start; my_iov.iov_len = bytes_to_send; - res = send_packet(NULL, sock, &my_msg, 0); + res = send_packet(NULL, sock, &my_msg, bytes_to_send); if (res < 0) { if (bytes_sent) res = bytes_sent; |