netdev - RE: KASAN: use-after-free Read in j1939_session_get_by

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Message-ID: <BN8PR12MB3266A0CC1496ED5D532EA6D5D37E0@BN8PR12MB3266.namprd12.prod.outlook.com>
Date:   Tue, 5 Nov 2019 08:21:16 +0000
From:   Jose Abreu <Jose.Abreu@...opsys.com>
To:     syzbot <syzbot+d9536adc269404a984f8@...kaller.appspotmail.com>,
        "Jose.Abreu@...opsys.com" <Jose.Abreu@...opsys.com>,
        "arvid.brodin@...en.se" <arvid.brodin@...en.se>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "ilias.apalodimas@...aro.org" <ilias.apalodimas@...aro.org>,
        "jose.abreu@...opsys.com" <Jose.Abreu@...opsys.com>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "linux-can@...r.kernel.org" <linux-can@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux@...pel-privat.de" <linux@...pel-privat.de>,
        "mkl@...gutronix.de" <mkl@...gutronix.de>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "robin@...tonic.nl" <robin@...tonic.nl>,
        "socketcan@...tkopp.net" <socketcan@...tkopp.net>,
        "syzkaller-bugs@...glegroups.com" <syzkaller-bugs@...glegroups.com>
Subject: RE: KASAN: use-after-free Read in j1939_session_get_by_addr

From: syzbot <syzbot+d9536adc269404a984f8@...kaller.appspotmail.com>
Date: Nov/05/2019, 08:05:01 (UTC+00:00)

> syzbot has bisected this bug to:
> 
> commit 2af6106ae949651d529c8c3f0734c3a7babd0d4b
> Author: Jose Abreu <Jose.Abreu@...opsys.com>
> Date:   Tue Jul 9 08:03:00 2019 +0000
> 
>      net: stmmac: Introducing support for Page Pool

From the config provided, stmmac driver is not even enabled. Can you 
please confirm the bisection process ?

---
Thanks,
Jose Miguel Abreu