netdev - Re: general protection fault in cgroup_fd_array_put

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Message-ID: <c71beb90-51c6-099d-2078-fcc972414cfd@iogearbox.net>
Date:   Wed, 10 Jan 2018 16:30:24 +0100
From:   Daniel Borkmann <daniel@...earbox.net>
To:     syzbot <syzbot+b0efb8e572d01bce1ae0@...kaller.appspotmail.com>,
        ast@...nel.org, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: general protection fault in cgroup_fd_array_put_ptr

On 01/10/2018 01:58 PM, syzbot wrote:
> Hello,
> 
> syzkaller hit the following crash on b4464bcab38d3f7fe995a7cb960eeac6889bec08
> git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/master
> compiler: gcc (GCC) 7.1.1 20170620
> .config is attached
> Raw console output is attached.
> C reproducer is attached
> syzkaller reproducer is attached. See https://goo.gl/kgGztJ
> for information about syzkaller reproducers

Currently looking into all of the reports. Looks they're all related to fd array
map. Will get back once I have some more data & managed to reproduce.

Thanks,
Daniel