net: replace calls to sock->ops->connect() with kernel_connect()

commit 0bdf399342c5 ("net: Avoid address overwrite in kernel_connect")
ensured that kernel_connect() will not overwrite the address parameter
in cases where BPF connect hooks perform an address rewrite. This change
replaces direct calls to sock->ops->connect() in net with kernel_connect()
to make these call safe.

Link: https://lore.kernel.org/netdev/20230912013332.2048422-1-jrife@google.com/
Fixes: d74bad4e74ee ("bpf: Hooks for sys_connect")
Cc: stable@vger.kernel.org
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jordan Rife <jrife@google.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/netfilter/ipvs/ip_vs_sync.c b/net/netfilter/ipvs/ip_vs_sync.c
index da5af28..6e4ed1e 100644 (file)
--- a/net/netfilter/ipvs/ip_vs_sync.c
+++ b/net/netfilter/ipvs/ip_vs_sync.c
@@ -1505,8 +1505,8 @@ static int make_send_sock(struct netns_ipvs *ipvs, int id,
        }
 
        get_mcast_sockaddr(&mcast_addr, &salen, &ipvs->mcfg, id);
-       result = sock->ops->connect(sock, (struct sockaddr *) &mcast_addr,
-                                   salen, 0);
+       result = kernel_connect(sock, (struct sockaddr *)&mcast_addr,
+                               salen, 0);
        if (result < 0) {
                pr_err("Error connecting to the multicast addr\n");
                goto error;

diff --git a/net/rds/tcp_connect.c b/net/rds/tcp_connect.c
index f0c477c..d788c6d 100644 (file)
--- a/net/rds/tcp_connect.c
+++ b/net/rds/tcp_connect.c
@@ -173,7 +173,7 @@ int rds_tcp_conn_path_connect(struct rds_conn_path *cp)
         * own the socket
         */
        rds_tcp_set_callbacks(sock, cp);
-       ret = sock->ops->connect(sock, addr, addrlen, O_NONBLOCK);
+       ret = kernel_connect(sock, addr, addrlen, O_NONBLOCK);
 
        rdsdebug("connect to address %pI6c returned %d\n", &conn->c_faddr, ret);
        if (ret == -EINPROGRESS)