netdev - Re: KASAN: use-after-free Read in rds_tcp_dev

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Message-ID: <CACT4Y+bw9-H-dfN+XmwJ_XkMb9wPo2NNJ01UDSQJxBGQeHLymw@mail.gmail.com>
Date:   Tue, 14 Nov 2017 15:04:05 +0100
From:   Dmitry Vyukov <dvyukov@...gle.com>
To:     Sowmini Varadhan <sowmini.varadhan@...cle.com>
Cc:     Girish Moodalbail <girish.moodalbail@...cle.com>,
        syzbot 
        <bot+643ecad3f5bb49700e839363b608c4928f6db8f0@...kaller.appspotmail.com>,
        David Miller <davem@...emloft.net>,
        netdev <netdev@...r.kernel.org>, rds-devel@....oracle.com,
        santosh.shilimkar@...cle.com, syzkaller-bugs@...glegroups.com
Subject: Re: KASAN: use-after-free Read in rds_tcp_dev_event

On Tue, Nov 14, 2017 at 2:22 PM, Sowmini Varadhan
<sowmini.varadhan@...cle.com> wrote:
>
>
> A few questions.
>
> - First off, why am I not seeing the original mail in this thread
>   even when I search the mail archives, e.g.,
>     https://lkml.org/lkml/2017/11/13/954

Good question!

The original message was sent to 4 kernel mailing lists:

---------- Forwarded message ----------
From: syzbot <bot+643ecad3f5bb49700e839363b608c4928f6db8f0@...kaller.appspotmail.com>
Date: Tue, Nov 7, 2017 at 9:28 PM
Subject: KASAN: use-after-free Read in rds_tcp_dev_event
To: davem@, linux-kernel@...r.kernel.org, linux-rdma@...r.kernel.org,
netdev@...r.kernel.org, rds-devel@....oracle.com, santosh.shilimkar@,
syzkaller-bugs@...glegroups.com

but does not appear to appear on any of them. Only on syzkaller-bugs list:
https://groups.google.com/d/msg/syzkaller-bugs/nEeIAsNLWL4/1GzamOmRAwAJ

I guess it was bounced for some reason. Does anybody know why it could
happen with this particular email? Or how to contact mailing list
owners? LKML faq mentions some Majordomo-owner, but I can't find any
details.

The email wasn't HTML, no multipart/alternative, no windows encoding,
subject did not match taboo regexps as subsequent emails appear on the
lists....

Unfortunately I don't have original (I received a duplicate Message-ID
from mailing list and my email client decided to store only the dup).
Here it is:
https://gist.githubusercontent.com/dvyukov/9b4e19605a80ebd103d94f69631a645c/raw/974891f90ef873a4bf568187c1a85ffe83f50b5a/gistfile1.txt

It indeed contains Mailing-list/List-ID headers which could have been
bounced. But I have original of another syzbot email received
directly, it gives idea about original headers and they don't contain
any mailing list headers:
https://gist.githubusercontent.com/dvyukov/9034b567ed6a2a88aec4d5cce1a0b2ac/raw/c81b4b4efde0d44983d263e594a1fc746c556607/gistfile1.txt