Re: [PATCH stable-6.18.y] io_uring/net: Avoid msghdr on op_connect/op_bind async data

[Greg KH <gregkh@linuxfoundation.org>]

On Wed, Jun 17, 2026 at 01:51:02PM -0400, Gabriel Krisman Bertazi wrote:
> [ Upstream commit 3979840cd858f30f43ea9f4e7f7f1f56de82d698 ]
> This fixes a memory leak due to the lack of the cleanup hook for the
> iovec.  The stable backport differs from upstream by dropping the
> io_connect_bpf_populate hunk, which didn't exist at the time and by
> fixing the merge conflict due to the introduction of
> io_bind_file_create.
> 
> Both IORING_OP_CONNECT and IORING_OP_BIND reuse the msghdr object just
> to store the sockaddr. Beyond allocating a much larger object than
> needed, msghdr can also wrap an iovec, which will be recycled
> unnecessarily. This uses the sockaddr directly.
> 
> Cc: stable@vger.kernel.org
> Signed-off-by: Gabriel Krisman Bertazi <krisman@suse.de>
> Link: https://patch.msgid.link/20260602215327.1885109-2-krisman@suse.de
> Signed-off-by: Jens Axboe <axboe@kernel.dk>
> Signed-off-by: Gabriel Krisman Bertazi <krisman@suse.de>
> ---
>  io_uring/net.c   | 36 ++++++++++++++++++------------------
>  io_uring/opdef.c |  4 ++--
>  2 files changed, 20 insertions(+), 20 deletions(-)

This isn't in any release yet, why just 6.18?  And why wan't it
originally tagged for stable?

thanks,

greg k-h