linux-kernel - Re: KASAN: null-ptr-deref Write in xlog_cil

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CACzhbgSdDBzTyqc3ci17U2DG8GKo=Fq=H3c+eTM7J5u_Xh2QmA@mail.gmail.com>
Date: Thu, 25 Apr 2024 13:31:06 -0700
From: Leah Rumancik <leah.rumancik@...il.com>
To: "Darrick J. Wong" <djwong@...nel.org>
Cc: Marius Fleischer <fleischermarius@...il.com>, Dave Chinner <david@...morbit.com>, 
	linux-xfs@...r.kernel.org, linux-kernel@...r.kernel.org, 
	harrisonmichaelgreen@...il.com, syzkaller@...glegroups.com
Subject: Re: KASAN: null-ptr-deref Write in xlog_cil_commit

Hi Marius,

Thanks for the bug report. If you can reliably reproduce this issue
and can provide a patch which fixes it, I can add that patch to the
next set of 5.15 backports. I am a bit limited for time at the moment
though and trying to work on the backlog of backports into 6.1.y as
well, so I am not sure what the exact timeline would look for a 5.15.y
set yet.

- Leah


On Tue, Apr 23, 2024 at 8:42 PM Darrick J. Wong <djwong@...nel.org> wrote:
>
> On Tue, Apr 23, 2024 at 08:05:22AM -0700, Marius Fleischer wrote:
> > Hi Dave,
> >
> > Thank you so much for your detailed explanations!
> >
> > > > Do you think it would make sense to backport that patch to 5.15.156 (the
> > > > LTS kernel)?
> > >
> > > That's up to the 5.15 LTS maintainers to decide. They also need to
> > > weigh up the fact that xlog_cil_kvmalloc() doesn't exist anymore in
> > > the upstream code base. i.e. we found other places that had the same
> > > kvmalloc() performance problems, and so lifted that code up further
> > > and used it in other places in XFS....
> > >
> >
> > Understood. Please allow me one last follow-up question. Did I add the correct
> > maintainers/mailing lists to reach the 5.15 LTS maintainers? If not,
> > how do I find
> > the correct addresses? I used scripts/get_maintainer.pl as suggested here
> > (https://www.kernel.org/doc/html/latest/admin-guide/reporting-issues.html)
> > to locate maintainers/mailing lists.
>
> You got it correct -- Leah is the 5.15 maintainer of record.
>
> --D
>
> > Wishing you a lovely week!
> >
> > Best,
> > Marius