linux-kernel - Re: BUG: general protection fault in get_mem_cgroup_from

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Message-ID: <CALAgD-5-8YjG=uOk_yAy_U8Dy9myRvC+pAiVe0R+Yt+xmEuCxQ@mail.gmail.com>
Date: Wed, 28 Aug 2024 22:20:04 -0700
From: Xingyu Li <xli399@....edu>
To: Roman Gushchin <roman.gushchin@...ux.dev>
Cc: hannes@...xchg.org, mhocko@...nel.org, shakeel.butt@...ux.dev, 
	muchun.song@...ux.dev, cgroups@...r.kernel.org, linux-mm@...ck.org, 
	linux-kernel@...r.kernel.org, Yu Hao <yhao016@....edu>, Juefei Pu <jpu007@....edu>
Subject: Re: BUG: general protection fault in get_mem_cgroup_from_objcg

Hi,

Here is the kernel config file:
https://gist.github.com/TomAPU/64f5db0fe976a3e94a6dd2b621887cdd

how long does it take to reproduce?
Juefei will follow on this, and I just CC'ed him.


On Wed, Aug 28, 2024 at 7:43 PM Roman Gushchin <roman.gushchin@...ux.dev> wrote:
>
> On Wed, Aug 28, 2024 at 04:09:49PM -0700, Xingyu Li wrote:
> > Hi,
> >
> > We found a bug in Linux 6.10 using syzkaller. It is possibly a  null
> > pointer dereference bug.
> > The reprodcuer is
> > https://gist.github.com/freexxxyyy/315733cb1dc3bc8cbe055b457c1918c0
>
> Hello,
>
> thank you for the report. Can you, please, share the kernel config file?
> Also, how long does it take to reproduce?
>
> Thanks!



--
Yours sincerely,
Xingyu