Re: [PATCH 4.19.y] udp: preserve the connected status if only UDP cmsg

[Greg KH <gregkh@linuxfoundation.org>]

On Tue, Apr 30, 2024 at 04:09:23PM +0800, Yick Xie wrote:
> If "udp_cmsg_send()" returned 0 (i.e. only UDP cmsg),
> "connected" should not be set to 0. Otherwise it stops
> the connected socket from using the cached route.
> 
> Fixes: 2e8de8576343 ("udp: add gso segment cmsg")
> Signed-off-by: Yick Xie <yick.xie@gmail.com>
> Cc: stable@vger.kernel.org
> Reviewed-by: Willem de Bruijn <willemb@google.com>
> Link: https://lore.kernel.org/r/20240418170610.867084-1-yick.xie@gmail.com
> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
> (cherry picked from commit 680d11f6e5427b6af1321932286722d24a8b16c1)
> Signed-off-by: Yick Xie <yick.xie@gmail.com>
> ---
>  net/ipv4/udp.c | 5 +++--
>  net/ipv6/udp.c | 5 +++--
>  2 files changed, 6 insertions(+), 4 deletions(-)

Sorry, but we can not take a 4.19.y only patch, without it also being
present in newer stable kernels.  If you provide versions for 5.4.y,
5.10.y, and 5.15.y then we can take this one.

thanks,

greg k-h