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Message-ID: <CAM_iQpXdTNVywYm6+vmAKMsBRcC6ySOX9Rcg70xhgdjJgbDJkw@mail.gmail.com>
Date: Mon, 16 Sep 2019 09:49:27 -0700
From: Cong Wang <xiyou.wangcong@...il.com>
To: syzbot <syzbot+fae39afd2101a17ec624@...kaller.appspotmail.com>
Cc: Arvid Brodin <arvid.brodin@...en.se>,
David Miller <davem@...emloft.net>,
LKML <linux-kernel@...r.kernel.org>, linux-rdma@...r.kernel.org,
Linux Kernel Network Developers <netdev@...r.kernel.org>,
rds-devel@....oracle.com,
Santosh Shilimkar <santosh.shilimkar@...cle.com>,
syzkaller-bugs <syzkaller-bugs@...glegroups.com>
Subject: Re: BUG: unable to handle kernel NULL pointer dereference in rds_bind
On Mon, Sep 16, 2019 at 6:29 AM syzbot
<syzbot+fae39afd2101a17ec624@...kaller.appspotmail.com> wrote:
>
> Hello,
>
> syzbot found the following crash on:
>
> HEAD commit: f4b752a6 mlx4: fix spelling mistake "veify" -> "verify"
> git tree: net
> console output: https://syzkaller.appspot.com/x/log.txt?x=16cbebe6600000
> kernel config: https://syzkaller.appspot.com/x/.config?x=b89bb446a3faaba4
> dashboard link: https://syzkaller.appspot.com/bug?extid=fae39afd2101a17ec624
> compiler: gcc (GCC) 9.0.0 20181231 (experimental)
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10753bc1600000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=111dfc11600000
>
> The bug was bisected to:
>
> commit b9a1e627405d68d475a3c1f35e685ccfb5bbe668
> Author: Cong Wang <xiyou.wangcong@...il.com>
> Date: Thu Jul 4 00:21:13 2019 +0000
>
> hsr: implement dellink to clean up resources
The crash has nothing to do with this commit. It is probably caused
by the lack of ->laddr_check in rds_loop_transport.
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