Re: [PATCH] f2fs: fix UAF issue in f2fs_merge_page_bio()

[Greg KH <gregkh@linuxfoundation.org>]

On Fri, Jul 10, 2026 at 11:17:19AM +0800, Jiucheng Xu wrote:
> 
> On 7/9/2026 7:04 PM, Greg KH wrote:
> > [ EXTERNAL EMAIL ]
> > 
> > On Thu, Jul 09, 2026 at 05:35:40PM +0800, Jiucheng Xu via B4 Relay wrote:
> > > From: Jiucheng Xu <jiucheng.xu@amlogic.com>
> > > 
> > > commit edf7e9040fc52c922db947f9c6c36f07377c52ea upstream.
> > > 
> > > As JY reported in bugzilla [1],
> > 
> > What kernel(s) is this for?
> 
> I'm really sorry, Greg.
> 
> This is my first time submitting code to the stable git tree, and I'm not
> quite familiar with the process and rules yet. Please forgive me.
> 
> I hope this patch can be applied to the v5.15.y branch. I referred to other
> patches and added a "[Mark: backport to v5.15.y]" in the commit message. I'm
> not sure if this is correct.

It needs to go to the newer kernels first, so that you do not have a
regression when moving to a newer release.  So can you submit backports
for all of the relevant stable kernel trees, including 5.15.y, and we
will be glad to queue them all up then.

thanks,

greg k-h