From: Sabrina Dubroca <sd@queasysnail.net>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: syzbot <syzbot+41f9c04b50ef70c66947@syzkaller.appspotmail.com>,
christian.brauner@ubuntu.com, davem@davemloft.net,
dsahern@gmail.com, fw@strlen.de, jbenc@redhat.com,
ktkhai@virtuozzo.com, linux-kernel@vger.kernel.org,
lucien.xin@gmail.com, netdev@vger.kernel.org,
syzkaller-bugs@googlegroups.com
Subject: Re: KASAN: use-after-free Read in rtnetlink_put_metrics
Date: Tue, 31 Jul 2018 15:40:14 +0200 [thread overview]
Message-ID: <20180731134014.GA32114@bistromath.localdomain> (raw)
In-Reply-To: <c8ffd001-8c67-19b9-7223-34ca8d436db2@gmail.com>
2018-07-31, 05:41:56 -0700, Eric Dumazet wrote:
>
>
> On 07/31/2018 05:31 AM, syzbot wrote:
> > Hello,
> >
> > syzbot found the following crash on:
> >
> > HEAD commit: 61f4b23769f0 netlink: Don't shift with UB on nlk->ngroups
> > git tree: net
> > console output: https://syzkaller.appspot.com/x/log.txt?x=14a9de58400000
> > kernel config: https://syzkaller.appspot.com/x/.config?x=ffb4428fdc82f93b
> > dashboard link: https://syzkaller.appspot.com/bug?extid=41f9c04b50ef70c66947
> > compiler: gcc (GCC) 8.0.1 20180413 (experimental)
> >
> > Unfortunately, I don't have any reproducer for this crash yet.
[...]
> Probably also caused by :
>
>
> commit df18b50448fab1dff093731dfd0e25e77e1afcd1
> Author: Sabrina Dubroca <sd@queasysnail.net>
> Date: Mon Jul 30 16:23:10 2018 +0200
>
> net/ipv6: fix metrics leak
Yeah, I'm looking into both those reports :/
--
Sabrina
next prev parent reply other threads:[~2018-07-31 13:40 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-31 12:31 KASAN: use-after-free Read in rtnetlink_put_metrics syzbot
2018-07-31 12:41 ` Eric Dumazet
2018-07-31 13:40 ` Sabrina Dubroca [this message]
2018-07-31 21:53 ` David Miller
2018-07-31 23:03 ` Cong Wang
2018-08-01 8:15 ` Sabrina Dubroca
2018-08-01 8:28 ` David Ahern
2018-08-02 5:23 ` Cong Wang
2018-08-01 18:46 ` David Miller
2018-08-01 19:26 ` Sabrina Dubroca
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