This is a note to let you know that I've just added the patch titled
ksmbd: off ipv6only for both ipv4/ipv6 binding
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ksmbd-off-ipv6only-for-both-ipv4-ipv6-binding.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From cc00bc83f26eb8f2d8d9f56b949b62fd774d8432 Mon Sep 17 00:00:00 2001
From: Namjae Jeon <linkinjeon@xxxxxxxxxx>
Date: Wed, 1 May 2024 21:41:50 +0900
Subject: ksmbd: off ipv6only for both ipv4/ipv6 binding
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From: Namjae Jeon <linkinjeon@xxxxxxxxxx>
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@xxxxxxxxxxxxxxx
Reported-by: ΕΛΕΝΗ ΤΖΑΒΕΛΛΑ <helentzavellas@xxxxxxxx>
Signed-off-by: Namjae Jeon <linkinjeon@xxxxxxxxxx>
Signed-off-by: Steve French <stfrench@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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);
Patches currently in stable-queue which might be from linkinjeon@xxxxxxxxxx are
queue-6.1/ksmbd-avoid-to-send-duplicate-lease-break-notifications.patch
queue-6.1/ksmbd-off-ipv6only-for-both-ipv4-ipv6-binding.patch
queue-6.1/ksmbd-do-not-grant-v2-lease-if-parent-lease-key-and-epoch-are-not-set.patch
