Re: 5.10.225 stable kernel cgroup_mutex not held assertion failure

["gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>]

On Wed, Nov 20, 2024 at 05:47:36PM +0000, Siddh Raman Pant wrote:
> On Wed, Nov 20 2024 at 20:28:36 +0530, gregkh@linuxfoundation.org
> wrote:
> > On Wed, Nov 20, 2024 at 02:46:32PM +0000, Siddh Raman Pant wrote:
> > > On Wed, Nov 06 2024 at 11:54:32 +0530, Siddh Raman Pant wrote:
> > > > On Wed, Nov 06 2024 at 11:40:39 +0530, gregkh@linuxfoundation.org
> > > > wrote:
> > > > > On Wed, Oct 30, 2024 at 07:29:38AM +0000, Siddh Raman Pant wrote:
> > > > > > Hello maintainers,
> > > > > > 
> > > > > > On Fri, 20 Sep 2024 02:28:03 -0700, Shivani Agarwal wrote:
> > > > > > > Thanks Fedor.
> > > > > > > 
> > > > > > > Upstream commit 1be59c97c83c is merged in 5.4 with commit 10aeaa47e4aa and
> > > > > > > in 4.19 with commit 27d6dbdc6485. The issue is reproducible in 5.4 and 4.19
> > > > > > > also.
> > > > > > > 
> > > > > > > I am sending the backport patch of d23b5c577715 and a7fb0423c201 for 5.4 and
> > > > > > > 4.19 in the next email.
> > > > > > 
> > > > > > Please backport these changes to stable.
> > > > > > 
> > > > > > "cgroup/cpuset: Prevent UAF in proc_cpuset_show()" has already been
> > > > > > backported and bears CVE-2024-43853. As reported, we may already have
> > > > > > introduced another problem due to the missing backport.
> > > > > 
> > > > > What exact commits are needed here?  Please submit backported and tested
> > > > > commits and we will be glad to queue them up.
> > > > > 
> > > > > thanks,
> > > > > 
> > > > > greg k-h
> > > > 
> > > > Please see the following thread where Shivani posted the patches:
> > > > 
> > > > https://lore.kernel.org/all/20240920092803.101047-1-shivani.agarwal@broadcom.com/ 
> > > > 
> > > > Thanks,
> > > > Siddh
> > > 
> > > Ping...
> > 
> > I don't understand what you want here, sorry.
> 
> Please find attached the patch emails for 5.4 with this email. They
> apply cleanly to the linux-5.4.y branch.

Please resend these as patches, in the correct order, not as attachments
as it's hard to review and handle them this way.

thanks,

greg k-h