linux-hardening - Re: [BUG]: bad usercopy in kvm_stats

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Message-Id: <20230710133427.fb599ef486c7b764d9ca2cc3@linux-foundation.org>
Date:   Mon, 10 Jul 2023 13:34:27 -0700
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Zheng Zhang <zheng.zhang@...il.ucr.edu>
Cc:     keescook@...omium.org, linux-hardening@...r.kernel.org,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        kvm@...r.kernel.org
Subject: Re: [BUG]: bad usercopy in kvm_stats_read in mm/usercopy.c

On Sun, 9 Jul 2023 14:32:09 -0700 Zheng Zhang <zheng.zhang@...il.ucr.edu> wrote:

> Kees, Andrew, and  to whom it may concern:
> 
> Hello! We have found a bug in the Linux kernel version 6.2.0 by syzkaller
> with our own templates. It also produces a POC.
> Attached is the report, log, and reproducers generated by syzkaller
> Please let me know if there is any additional information that I can
> provide to help debug this issue.
> Thanks!

Let's cc the kvm mailing list.

Original email is at
https://lkml.kernel.org/r/CAC_GQSr3xzZaeZt85k_RCBd5kfiOve8qXo7a81Cq53LuVQ5r=Q@mail.gmail.com