linux-kernel - Re: WARNING: kmalloc bug in bpf_prog_array_copy

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Message-ID: <1171a3b4-67b2-dc8b-af87-d9378d42ab4c@iogearbox.net>
Date:   Wed, 14 Feb 2018 13:36:46 +0100
From:   Daniel Borkmann <daniel@...earbox.net>
To:     syzbot <syzbot+cab5816b0edbabf598b3@...kaller.appspotmail.com>,
        ast@...nel.org, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: WARNING: kmalloc bug in bpf_prog_array_copy_info

On 02/14/2018 12:59 AM, syzbot wrote:
> Hello,
> 
> syzbot hit the following crash on bpf-next commit
> 7928b2cbe55b2a410a0f5c1f154610059c57b1b2 (Sun Feb 11 23:04:29 2018 +0000)
> Linux 4.16-rc1
> 
> So far this crash happened 362 times on bpf-next.
> C reproducer is attached.
> syzkaller reproducer is attached.
> Raw console output is attached.
> compiler: gcc (GCC) 7.1.1 20170620
> .config is attached.

Will send a fix for this in a bit.