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From:   Dmitry Vyukov <dvyukov@google.com>
Date:   Sat, 17 Nov 2018 09:08:09 -0800
Message-ID: <CACT4Y+adVR4eoWpgn1syqbCitYn9hnnqvC2815V94B9yyBhtwQ@mail.gmail.com>
Subject: Re: WARNING in static_key_disable_cpuslocked
To:     Paolo Abeni <pabeni@redhat.com>
Cc:     Ard Biesheuvel <ard.biesheuvel@linaro.org>,
        syzbot+6cffdef928852907751c@syzkaller.appspotmail.com,
        "David S. Miller" <davem@davemloft.net>,
        Borislav Petkov <bp@suse.de>, Jason Baron <jbaron@akamai.com>,
        Josh Poimboeuf <jpoimboe@redhat.com>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Ingo Molnar <mingo@kernel.org>,
        Peter Zijlstra <peterz@infradead.org>,
        syzkaller-bugs@googlegroups.com,
        Thomas Gleixner <tglx@linutronix.de>
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On Sat, Nov 17, 2018 at 8:25 AM, Paolo Abeni <pabeni@redhat.com> wrote:
> Hi,
>
> On Sat, 2018-11-17 at 06:52 -0800, Ard Biesheuvel wrote:
>> (+ Paolo, Dave)
>>
>> On Sat, 17 Nov 2018 at 01:59, syzbot
>> <syzbot+6cffdef928852907751c@syzkaller.appspotmail.com> wrote:
>> >
>> > Hello,
>> >
>> > syzbot found the following crash on:
>> >
>> > HEAD commit:    442b8cea2477 Add linux-next specific files for 20181109
>> > git tree:       linux-next
>> > console output: https://syzkaller.appspot.com/x/log.txt?x=11f1dc25400000
>> > kernel config:  https://syzkaller.appspot.com/x/.config?x=2f72bdb11df9fbe8
>> > dashboard link: https://syzkaller.appspot.com/bug?extid=6cffdef928852907751c
>> > compiler:       gcc (GCC) 8.0.1 20180413 (experimental)
>> > syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10126533400000
>> >
>> > IMPORTANT: if you fix the bug, please add the following tag to the commit:
>> > Reported-by: syzbot+6cffdef928852907751c@syzkaller.appspotmail.com
>
> This should be addressed in current net-next, by commit:
>
> commit 9c48060141bd937497774546e4bb89b8992be383
> Author: Paolo Abeni <pabeni@redhat.com>
> Date:   Thu Nov 15 02:34:50 2018 +0100
>
>     udp: fix jump label misuse
>
> Cheers,
>
> Paolo


#syz fix: udp: fix jump label misuse