6.6-stable review patch. If anyone has any objections, please let me know.
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From: Namjae Jeon linkinjeon@kernel.org
commit cc00bc83f26eb8f2d8d9f56b949b62fd774d8432 upstream.
ΕΛΕΝΗ reported that ksmbd binds to the IPV6 wildcard (::) by default for ipv4 and ipv6 binding. So IPV4 connections are successful only when the Linux system parameter bindv6only is set to 0 [default value]. If this parameter is set to 1, then the ipv6 wildcard only represents any IPV6 address. Samba creates different sockets for ipv4 and ipv6 by default. This patch off sk_ipv6only to support IPV4/IPV6 connections without creating two sockets.
Cc: stable@vger.kernel.org Reported-by: ΕΛΕΝΗ ΤΖΑΒΕΛΛΑ helentzavellas@yahoo.gr Signed-off-by: Namjae Jeon linkinjeon@kernel.org Signed-off-by: Steve French stfrench@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/smb/server/transport_tcp.c | 4 ++++ 1 file changed, 4 insertions(+)
--- a/fs/smb/server/transport_tcp.c +++ b/fs/smb/server/transport_tcp.c @@ -446,6 +446,10 @@ static int create_socket(struct interfac sin6.sin6_family = PF_INET6; sin6.sin6_addr = in6addr_any; sin6.sin6_port = htons(server_conf.tcp_port); + + lock_sock(ksmbd_socket->sk); + ksmbd_socket->sk->sk_ipv6only = false; + release_sock(ksmbd_socket->sk); }
ksmbd_tcp_nodelay(ksmbd_socket);