From: Marc Kleine-Budde <mkl@pengutronix.de>
To: Eric Dumazet <edumazet@google.com>
Cc: syzbot <syzbot+4c63f36709a642f801c5@syzkaller.appspotmail.com>,
anthony.l.nguyen@intel.com, changbin.du@intel.com,
Christian Brauner <christian.brauner@ubuntu.com>,
David Miller <davem@davemloft.net>,
Eric Dumazet <eric.dumazet@gmail.com>,
Jesper Dangaard Brouer <hawk@kernel.org>,
Heiner Kallweit <hkallweit1@gmail.com>,
intel-wired-lan-owner@osuosl.org,
intel-wired-lan@lists.osuosl.org,
Jesse Brandeburg <jesse.brandeburg@intel.com>,
Jakub Kicinski <kuba@kernel.org>,
linux-can@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>,
netdev <netdev@vger.kernel.org>,
Oliver Hartkopp <socketcan@hartkopp.net>,
syzkaller-bugs <syzkaller-bugs@googlegroups.com>,
Yajun Deng <yajun.deng@linux.dev>
Subject: Re: [syzbot] kernel BUG in pskb_expand_head
Date: Wed, 5 Jan 2022 15:04:43 +0100 [thread overview]
Message-ID: <20220105140443.vwobz3yx4z3rux6a@pengutronix.de> (raw)
In-Reply-To: <CANn89i+LbcWn3xoYU-eMjjmQPz0x1pSAat2OpF=i0+RByc-h4w@mail.gmail.com>
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On 05.01.2022 05:59:35, Eric Dumazet wrote:
> On Wed, Jan 5, 2022 at 3:20 AM syzbot
> <syzbot+4c63f36709a642f801c5@syzkaller.appspotmail.com> wrote:
> >
> > syzbot has found a reproducer for the following issue on:
> >
> > HEAD commit: c9e6606c7fe9 Linux 5.16-rc8
> > git tree: upstream
> > console output: https://syzkaller.appspot.com/x/log.txt?x=148351c3b00000
> > kernel config: https://syzkaller.appspot.com/x/.config?x=32f9fa260d7413b4
> > dashboard link: https://syzkaller.appspot.com/bug?extid=4c63f36709a642f801c5
> > compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
> > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15435e2bb00000
> > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12f4508db00000
> >
>
> This C repro looks legit, bug should be in CAN layer.
ACK - it's bug in CAN's ISOTP
> > The issue was bisected to:
> >
> > commit e4b8954074f6d0db01c8c97d338a67f9389c042f
> > Author: Eric Dumazet <edumazet@google.com>
> > Date: Tue Dec 7 01:30:37 2021 +0000
> >
> > netlink: add net device refcount tracker to struct ethnl_req_info
>
> Ignore this bisection, an unrelated commit whent in its way.
ACK - We have a RFC fix for this:
https://lore.kernel.org/all/20220105132429.1170627-1-mkl@pengutronix.de
regards,
Marc
--
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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WARNING: multiple messages have this Message-ID (diff)
From: Marc Kleine-Budde <mkl@pengutronix.de>
To: intel-wired-lan@osuosl.org
Subject: [Intel-wired-lan] [syzbot] kernel BUG in pskb_expand_head
Date: Wed, 5 Jan 2022 15:04:43 +0100 [thread overview]
Message-ID: <20220105140443.vwobz3yx4z3rux6a@pengutronix.de> (raw)
In-Reply-To: <CANn89i+LbcWn3xoYU-eMjjmQPz0x1pSAat2OpF=i0+RByc-h4w@mail.gmail.com>
On 05.01.2022 05:59:35, Eric Dumazet wrote:
> On Wed, Jan 5, 2022 at 3:20 AM syzbot
> <syzbot+4c63f36709a642f801c5@syzkaller.appspotmail.com> wrote:
> >
> > syzbot has found a reproducer for the following issue on:
> >
> > HEAD commit: c9e6606c7fe9 Linux 5.16-rc8
> > git tree: upstream
> > console output: https://syzkaller.appspot.com/x/log.txt?x=148351c3b00000
> > kernel config: https://syzkaller.appspot.com/x/.config?x=32f9fa260d7413b4
> > dashboard link: https://syzkaller.appspot.com/bug?extid=4c63f36709a642f801c5
> > compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
> > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15435e2bb00000
> > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12f4508db00000
> >
>
> This C repro looks legit, bug should be in CAN layer.
ACK - it's bug in CAN's ISOTP
> > The issue was bisected to:
> >
> > commit e4b8954074f6d0db01c8c97d338a67f9389c042f
> > Author: Eric Dumazet <edumazet@google.com>
> > Date: Tue Dec 7 01:30:37 2021 +0000
> >
> > netlink: add net device refcount tracker to struct ethnl_req_info
>
> Ignore this bisection, an unrelated commit whent in its way.
ACK - We have a RFC fix for this:
https://lore.kernel.org/all/20220105132429.1170627-1-mkl at pengutronix.de
regards,
Marc
--
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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next prev parent reply other threads:[~2022-01-05 14:05 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-15 8:38 [syzbot] kernel BUG in pskb_expand_head syzbot
2021-11-15 8:38 ` [Intel-wired-lan] " syzbot
2021-12-20 0:19 ` syzbot
2021-12-20 0:19 ` [Intel-wired-lan] " syzbot
2022-01-05 11:44 ` Marc Kleine-Budde
2022-01-05 11:44 ` [Intel-wired-lan] " Marc Kleine-Budde
2022-01-05 12:46 ` Oliver Hartkopp
2022-01-05 12:46 ` [Intel-wired-lan] " Oliver Hartkopp
2021-12-20 4:15 ` syzbot
2021-12-20 4:15 ` [Intel-wired-lan] " syzbot
2022-01-05 11:20 ` syzbot
2022-01-05 11:20 ` [Intel-wired-lan] " syzbot
2022-01-05 13:59 ` Eric Dumazet
2022-01-05 13:59 ` [Intel-wired-lan] " Eric Dumazet
2022-01-05 14:04 ` Marc Kleine-Budde [this message]
2022-01-05 14:04 ` Marc Kleine-Budde
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