From: Kishen Maloor <kishen.maloor@xxxxxxxxx>
This change updates mptcp_pm_nl_create_listen_socket() to create
listening sockets bound to IPv6 addresses (where IPv6 is supported).
Cc: stable@xxxxxxxxxxxxxxx
Fixes: 1729cf186d8a ("mptcp: create the listening socket for new port")
Acked-by: Geliang Tang <geliang.tang@xxxxxxxx>
Signed-off-by: Kishen Maloor <kishen.maloor@xxxxxxxxx>
Signed-off-by: Mat Martineau <mathew.j.martineau@xxxxxxxxxxxxxxx>
---
net/mptcp/pm_netlink.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c
index 782b1d452269..356f596e2032 100644
--- a/net/mptcp/pm_netlink.c
+++ b/net/mptcp/pm_netlink.c
@@ -925,6 +925,7 @@ static int mptcp_pm_nl_append_new_local_addr(struct pm_nl_pernet *pernet,
static int mptcp_pm_nl_create_listen_socket(struct sock *sk,
struct mptcp_pm_addr_entry *entry)
{
+ int addrlen = sizeof(struct sockaddr_in);
struct sockaddr_storage addr;
struct mptcp_sock *msk;
struct socket *ssock;
@@ -949,8 +950,11 @@ static int mptcp_pm_nl_create_listen_socket(struct sock *sk,
}
mptcp_info2sockaddr(&entry->addr, &addr, entry->addr.family);
- err = kernel_bind(ssock, (struct sockaddr *)&addr,
- sizeof(struct sockaddr_in));
+#if IS_ENABLED(CONFIG_MPTCP_IPV6)
+ if (entry->addr.family == AF_INET6)
+ addrlen = sizeof(struct sockaddr_in6);
+#endif
+ err = kernel_bind(ssock, (struct sockaddr *)&addr, addrlen);
if (err) {
pr_warn("kernel_bind error, err=%d", err);
goto out;
--
2.35.1
