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Tue, 05 Nov 2019 09:35:22 +0100 Received: from [IPv6:2a03:f580:87bc:d400:9178:2522:c6a9:b2bb] (unknown [IPv6:2a03:f580:87bc:d400:9178:2522:c6a9:b2bb]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-384) server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) (Authenticated sender: mkl@blackshift.org) by smtp.blackshift.org (Postfix) with ESMTPSA id 3084C474D58; Tue, 5 Nov 2019 08:33:38 +0000 (UTC) To: Jose Abreu , syzbot , "arvid.brodin@alten.se" , "davem@davemloft.net" , "ilias.apalodimas@linaro.org" , "kernel@pengutronix.de" , "linux-can@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux@rempel-privat.de" , "netdev@vger.kernel.org" , "robin@protonic.nl" , "socketcan@hartkopp.net" , "syzkaller-bugs@googlegroups.com" References: <0000000000009393ba059691c6a3@google.com> <0000000000009427b5059694e33c@google.com> From: Marc Kleine-Budde Openpgp: preference=signencrypt Autocrypt: addr=mkl@pengutronix.de; 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Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="E8urJeMqxkxvn0jAIW1CNDli4LjSlEgIi" X-SA-Exim-Connect-IP: 2001:67c:670:201:5054:ff:fe8d:eefb X-SA-Exim-Mail-From: mkl@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --E8urJeMqxkxvn0jAIW1CNDli4LjSlEgIi Content-Type: multipart/mixed; boundary="qaAOKCEwENO8qPkNE1tUAKCm02QBejh9u"; protected-headers="v1" From: Marc Kleine-Budde To: Jose Abreu , syzbot , "arvid.brodin@alten.se" , "davem@davemloft.net" , "ilias.apalodimas@linaro.org" , "kernel@pengutronix.de" , "linux-can@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux@rempel-privat.de" , "netdev@vger.kernel.org" , "robin@protonic.nl" , "socketcan@hartkopp.net" , "syzkaller-bugs@googlegroups.com" Message-ID: <969f940b-05ba-3fbf-79ba-95dc1cebc40d@pengutronix.de> Subject: Re: KASAN: use-after-free Read in j1939_session_get_by_addr References: <0000000000009393ba059691c6a3@google.com> <0000000000009427b5059694e33c@google.com> In-Reply-To: --qaAOKCEwENO8qPkNE1tUAKCm02QBejh9u Content-Type: text/plain; charset=utf-8 Content-Language: en-GB Content-Transfer-Encoding: quoted-printable On 11/5/19 9:21 AM, Jose Abreu wrote: > From: syzbot > Date: Nov/05/2019, 08:05:01 (UTC+00:00) >=20 >> syzbot has bisected this bug to: >> >> commit 2af6106ae949651d529c8c3f0734c3a7babd0d4b >> Author: Jose Abreu >> Date: Tue Jul 9 08:03:00 2019 +0000 >> >> net: stmmac: Introducing support for Page Pool >=20 > From the config provided, stmmac driver is not even enabled. Can you=20 > please confirm the bisection process ? Looks like a false positive, as j1939 (net/can/j1939/) hit mainline with v5.4-rc1~131^2~78^2. While the bisected commit is v5.3-rc1~140^2~13^2. regards, Marc --=20 Pengutronix e.K. | Marc Kleine-Budde | Industrial Linux Solutions | Phone: +49-231-2826-924 | Vertretung West/Dortmund | Fax: +49-5121-206917-5555 | Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de | --qaAOKCEwENO8qPkNE1tUAKCm02QBejh9u-- --E8urJeMqxkxvn0jAIW1CNDli4LjSlEgIi Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCgAdFiEEmvEkXzgOfc881GuFWsYho5HknSAFAl3BM90ACgkQWsYho5Hk nSClyAf/aRbtnXNxbxKfoZYB1Hxes/baBaYlNG3vMNllR0AY3Fvxq0x5+CoWS2le c6yaUcZjjkh51ibpWknN7mlpyYDf4dH0iP+SkdinNv5uSrJuTcJvB+D2LxcxFc4S oT43qKBa1u4jt3YFp9Kt7GavMbSu/JvZ9P1PVTLhyzjsQ4l7JTMsPuE6p9l4cCBc HVo08ihz6GVW3EbE0Z4VyNW9SdD/4Ax1NmlcP3y/NwFg3/P7msep8jtZxmzHpsbw /FB5ptLWi0nF263l5pZJ7R3NZyRJhIxX7UfGquIxb1NncegOdPdJYnM7iPR9iRKu EKAF9rTeYemswBfJt4cEXKvgospZvA== =CxHt -----END PGP SIGNATURE----- --E8urJeMqxkxvn0jAIW1CNDli4LjSlEgIi--