linux-kernel - Re: BUG: unable to handle kernel paging request in is_bpf_text

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Message-ID: <20191018130128.GC26267@pc-63.home>
Date:   Fri, 18 Oct 2019 15:01:28 +0200
From:   Daniel Borkmann <daniel@...earbox.net>
To:     syzbot <syzbot+710043c5d1d5b5013bc7@...kaller.appspotmail.com>
Cc:     ast@...nel.org, bpf@...r.kernel.org, davem@...emloft.net,
        hawk@...nel.org, jakub.kicinski@...ronome.com,
        john.fastabend@...il.com, kafai@...com,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        songliubraving@...com, syzkaller-bugs@...glegroups.com, yhs@...com
Subject: Re: BUG: unable to handle kernel paging request in
 is_bpf_text_address

On Thu, Oct 17, 2019 at 10:45:09PM -0700, syzbot wrote:
> Hello,
> 
> syzbot found the following crash on:
> 
> HEAD commit:    283ea345 coccinelle: api/devm_platform_ioremap_resource: r..
> git tree:       upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=122f199b600000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=f0a8b0a0736a2ac1
> dashboard link: https://syzkaller.appspot.com/bug?extid=710043c5d1d5b5013bc7
> compiler:       clang version 9.0.0 (/home/glider/llvm/clang
> 80fee25776c2fb61e74c1ecb1a523375c2500b69)
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=142676bb600000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=11a2cebb600000

I'll take a look, thanks!