From: Dmitry Vyukov <dvyukov@google.com>
To: Marc Kleine-Budde <mkl@pengutronix.de>
Cc: Jose Abreu <Jose.Abreu@synopsys.com>,
syzbot <syzbot+d9536adc269404a984f8@syzkaller.appspotmail.com>,
"arvid.brodin@alten.se" <arvid.brodin@alten.se>,
"davem@davemloft.net" <davem@davemloft.net>,
"ilias.apalodimas@linaro.org" <ilias.apalodimas@linaro.org>,
"kernel@pengutronix.de" <kernel@pengutronix.de>,
"linux-can@vger.kernel.org" <linux-can@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux@rempel-privat.de" <linux@rempel-privat.de>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
"robin@protonic.nl" <robin@protonic.nl>,
"socketcan@hartkopp.net" <socketcan@hartkopp.net>,
"syzkaller-bugs@googlegroups.com"
<syzkaller-bugs@googlegroups.com>
Subject: Re: KASAN: use-after-free Read in j1939_session_get_by_addr
Date: Tue, 5 Nov 2019 09:39:26 +0100 [thread overview]
Message-ID: <CACT4Y+Y+zudxSaNc4-b02QWu9hPXHrReCKsOLBpscMub5KN7+A@mail.gmail.com> (raw)
In-Reply-To: <969f940b-05ba-3fbf-79ba-95dc1cebc40d@pengutronix.de>
On Tue, Nov 5, 2019 at 9:35 AM Marc Kleine-Budde <mkl@pengutronix.de> wrote:
>
> On 11/5/19 9:21 AM, Jose Abreu wrote:
> > From: syzbot <syzbot+d9536adc269404a984f8@syzkaller.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@synopsys.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 ?
>
> 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.
Yes, the commit is most likely irrelevant. As you can see in the
bisection log the process was diverged by "WARNING: ODEBUG bug in
netdev_freemem". I think it's not the first and not the second time I
see that crash breaks bisection:
https://syzkaller.appspot.com/bug?id=96a64fde216dca408a5c25db4e57838c51e435aa
next prev parent reply other threads:[~2019-11-05 8:39 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-05 4:22 KASAN: use-after-free Read in j1939_session_get_by_addr syzbot
2019-11-05 8:05 ` syzbot
2019-11-05 8:21 ` Jose Abreu
2019-11-05 8:33 ` Marc Kleine-Budde
2019-11-05 8:39 ` Dmitry Vyukov [this message]
2023-07-11 13:52 ` [syzbot] " syzbot
2023-07-25 13:53 ` syzbot
2023-08-08 14:34 ` Aleksandr Nogikh
2023-08-08 13:54 ` syzbot
2023-11-06 14:35 ` syzbot
2023-11-20 14:35 ` syzbot
2023-12-04 14:35 ` syzbot
2023-12-18 14:36 ` syzbot
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