netdev - Re: Stable Backport: net: Avoid address overwrite in kernel

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Message-ID: <2023090243-curse-renovator-c5eb@gregkh>
Date: Sat, 2 Sep 2023 09:29:30 +0200
From: Greg KH <gregkh@...uxfoundation.org>
To: Daniel Borkmann <daniel@...earbox.net>
Cc: Jordan Rife <jrife@...gle.com>, netdev@...r.kernel.org
Subject: Re: Stable Backport: net: Avoid address overwrite in kernel_connect

On Thu, Aug 31, 2023 at 09:26:31PM +0200, Daniel Borkmann wrote:
> [ Adding Greg to Cc ]
> 
> On 8/31/23 8:47 PM, Jordan Rife wrote:
> > Upstream Commit ID: 0bdf399342c5acbd817c9098b6c7ed21f1974312
> > Patchwork Link:
> > https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=0bdf399342c5
> > Requested Kernel Versions: 4.19, 5.4, 5.10, 5.15, 6.1, 6.4, 6.5
> > 
> > This patch addresses an incompatibility between eBPF connect4/connect6
> > programs and kernel space clients such as NFS. At present, the issue
> > this patch fixes is a blocker for users that want to combine NFS with
> > Cilium. The fix has been applied upstream but the same bug exists with
> > older kernels.

Also, no one tested this, it doesn't even actually apply to any of those
trees :(

Jordan, please provide working backports after you have tested this, if
you wish to see it applied to any stable trees.

thanks,

greg k-h