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Message-ID: <5d13f0ba3d1aa_25912acd0de805bcce@john-XPS-13-9370.notmuch>
Date: Wed, 26 Jun 2019 15:24:58 -0700
From: John Fastabend <john.fastabend@...il.com>
To: Eric Biggers <ebiggers@...nel.org>,
John Fastabend <john.fastabend@...il.com>
Cc: syzbot <syzbot+8893700724999566d6a9@...kaller.appspotmail.com>,
akpm@...ux-foundation.org, ast@...nel.org, cai@....pw,
crecklin@...hat.com, daniel@...earbox.net, keescook@...omium.org,
linux-kernel@...r.kernel.org, linux-mm@...ck.org,
netdev@...r.kernel.org, bpf@...r.kernel.org,
syzkaller-bugs@...glegroups.com
Subject: Re: KASAN: slab-out-of-bounds Write in validate_chain
Eric Biggers wrote:
> 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 <john.fastabend@...il.com>
> > 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/20190624050114.GA30702@sol.localdomain/).
>
> Also, this is happening in mainline (v5.2-rc6).
>
> - Eric
Should have a fix today. It seems syzbot has found this bug repeatedly.
.John
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