Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Subject: Re: KMSAN: uninit-value in can_receive
To:     Oliver Hartkopp <socketcan@hartkopp.net>,
        Eric Dumazet <eric.dumazet@gmail.com>,
        syzbot <syzbot+b02ff0707a97e4e79ebb@syzkaller.appspotmail.com>,
        davem@davemloft.net, glider@google.com, linux-can@vger.kernel.org,
        linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
        syzkaller-bugs@googlegroups.com
References: <0000000000005c08d10597a3a05d@google.com>
 <a5f73d92-fdf2-2590-c863-39a181dca8e1@hartkopp.net>
 <deedd609-6f3b-8035-47e1-252ab221faa1@pengutronix.de>
 <7934bc2b-597f-0bb3-be2d-32f3b07b4de9@hartkopp.net>
 <7f5c4546-0c1a-86ae-581e-0203b5fca446@pengutronix.de>
 <1f7d6ea7-152e-ff18-549c-b196d8b5e3a7@hartkopp.net>
 <9e06266a-67f3-7352-7b87-2b9144c7c9a9@gmail.com>
 <3142c032-e46a-531c-d1b8-d532e5b403a6@hartkopp.net>
 <92c04159-b83a-3e33-91da-25a727a692d0@gmail.com>
 <c1f80bac-bb75-e671-ba32-05cfae86569c@hartkopp.net>
 <0f395f1e-b7d4-6254-2a0c-54029b4dc38f@pengutronix.de>
 <82b02a62-51ff-4568-c33d-90223a2aed86@hartkopp.net>
From:   Marc Kleine-Budde <mkl@pengutronix.de>
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Message-ID: <5d539fdf-dcd8-3bab-1347-dbcbe63c646d@pengutronix.de>
Date:   Tue, 3 Dec 2019 11:40:07 +0100
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101
 Thunderbird/60.9.0
MIME-Version: 1.0
In-Reply-To: <82b02a62-51ff-4568-c33d-90223a2aed86@hartkopp.net>
Content-Type: multipart/signed; micalg=pgp-sha512;
 protocol="application/pgp-signature";
 boundary="wTDiHAZ40UyZRmeXKAzo1IfJUECuaBNE4"
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
--wTDiHAZ40UyZRmeXKAzo1IfJUECuaBNE4
Content-Type: multipart/mixed; boundary="erGAT8plmeXGe87IUrkUEGtfmoKpbKo9C";
 protected-headers="v1"
From: Marc Kleine-Budde <mkl@pengutronix.de>
To: Oliver Hartkopp <socketcan@hartkopp.net>,
 Eric Dumazet <eric.dumazet@gmail.com>,
 syzbot <syzbot+b02ff0707a97e4e79ebb@syzkaller.appspotmail.com>,
 davem@davemloft.net, glider@google.com, linux-can@vger.kernel.org,
 linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
 syzkaller-bugs@googlegroups.com
Message-ID: <5d539fdf-dcd8-3bab-1347-dbcbe63c646d@pengutronix.de>
Subject: Re: KMSAN: uninit-value in can_receive
References: <0000000000005c08d10597a3a05d@google.com>
 <a5f73d92-fdf2-2590-c863-39a181dca8e1@hartkopp.net>
 <deedd609-6f3b-8035-47e1-252ab221faa1@pengutronix.de>
 <7934bc2b-597f-0bb3-be2d-32f3b07b4de9@hartkopp.net>
 <7f5c4546-0c1a-86ae-581e-0203b5fca446@pengutronix.de>
 <1f7d6ea7-152e-ff18-549c-b196d8b5e3a7@hartkopp.net>
 <9e06266a-67f3-7352-7b87-2b9144c7c9a9@gmail.com>
 <3142c032-e46a-531c-d1b8-d532e5b403a6@hartkopp.net>
 <92c04159-b83a-3e33-91da-25a727a692d0@gmail.com>
 <c1f80bac-bb75-e671-ba32-05cfae86569c@hartkopp.net>
 <0f395f1e-b7d4-6254-2a0c-54029b4dc38f@pengutronix.de>
 <82b02a62-51ff-4568-c33d-90223a2aed86@hartkopp.net>
In-Reply-To: <82b02a62-51ff-4568-c33d-90223a2aed86@hartkopp.net>

--erGAT8plmeXGe87IUrkUEGtfmoKpbKo9C
Content-Type: text/plain; charset=utf-8
Content-Language: en-GB
Content-Transfer-Encoding: quoted-printable

Hey Oliver,

On 12/3/19 11:37 AM, Oliver Hartkopp wrote:
> No. I have analyzed several solutions which turn out to be either unsaf=
e=20
> in processing or need some changes in af_packet :-(
>=20
> I'm currently very busy @work

I know this problem :/
Thanks for your quick feedback, although your busy.

> but will come up with a discussion until end of this week.

Looking forward to this.

> There is no big pressure as the problem is more unpleasant than causing=
=20
> a real problem right now.

regards,
Marc

--=20
Pengutronix e.K.                 | Marc Kleine-Budde           |
Embedded Linux                   | https://www.pengutronix.de  |
Vertretung West/Dortmund         | Phone: +49-231-2826-924     |
Amtsgericht Hildesheim, HRA 2686 | Fax:   +49-5121-206917-5555 |


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