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Diffstat (limited to 'net/tipc/socket.c')
-rw-r--r--net/tipc/socket.c27
1 files changed, 22 insertions, 5 deletions
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index 29d94d53198d..338837396642 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;