Subject: Re: KASAN: slab-out-of-bounds Write in validate_chain

From: Eric Biggers <[email-masked]>
Date: Tue, 25 Jun 2019 16:48:09 -0700

Hi John,

On Tue, Jun 25, 2019 at 04:07:00PM -0700, syzbot wrote:
> syzbot has bisected this bug to:
> 
> commit e9db4ef6bf4ca9894bb324c76e01b8f1a16b2650
> Author: John Fastabend <[email-masked]>
> Date:   Sat Jun 30 13:17:47 2018 +0000
> 
>     bpf: sockhash fix omitted bucket lock in sock_close
> 

Are you working on this?  This is the 6th open syzbot report that has been
bisected to this commit, and I suspect it's the cause of many of the other
30 open syzbot reports I assigned to the bpf subsystem too
(https://lore.kernel.org/bpf/[email-masked]/).

Also, this is happening in mainline (v5.2-rc6).

- Eric