5.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jordan Rife <jrife@xxxxxxxxxx> commit 26297b4ce1ce4ea40bc9a48ec99f45da3f64d2e2 upstream. 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@xxxxxxxxxx/ Fixes: d74bad4e74ee ("bpf: Hooks for sys_connect") Cc: stable@xxxxxxxxxxxxxxx Reviewed-by: Willem de Bruijn <willemb@xxxxxxxxxx> Signed-off-by: Jordan Rife <jrife@xxxxxxxxxx> Reviewed-by: Simon Horman <horms@xxxxxxxxxx> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- net/netfilter/ipvs/ip_vs_sync.c | 4 ++-- net/rds/tcp_connect.c | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) --- a/net/netfilter/ipvs/ip_vs_sync.c +++ b/net/netfilter/ipvs/ip_vs_sync.c @@ -1510,8 +1510,8 @@ static int make_send_sock(struct netns_i } 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; --- a/net/rds/tcp_connect.c +++ b/net/rds/tcp_connect.c @@ -169,7 +169,7 @@ int rds_tcp_conn_path_connect(struct rds * 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)