linux-kernel - Re: WARNING: bad usercopy in corrupted (2)

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Date:   Tue, 19 Mar 2019 17:49:00 -0700
From:   syzbot <syzbot+d89b30c46434c433dbf8@...kaller.appspotmail.com>
To:     crecklin@...hat.com, davem@...emloft.net, dvyukov@...gle.com,
        keescook@...omium.org, kuznet@....inr.ac.ru,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        linux-net@...r.kernel.org, netdev@...r.kernel.org,
        sbrivio@...hat.com, sd@...asysnail.net,
        syzkaller-bugs@...glegroups.com, willy@...radead.org,
        yoshfuji@...ux-ipv6.org
Subject: Re: WARNING: bad usercopy in corrupted (2)

syzbot has bisected this bug to:

commit b8a51b38e4d4dec3e379d52c0fe1a66827f7cf1e
Author: Stefano Brivio <sbrivio@...hat.com>
Date:   Thu Nov 8 11:19:23 2018 +0000

     fou, fou6: ICMP error handlers for FoU and GUE

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=14a57f83200000
start commit:   b8a51b38 fou, fou6: ICMP error handlers for FoU and GUE
git tree:       net-next
console output: https://syzkaller.appspot.com/x/log.txt?x=12a57f83200000
kernel config:  https://syzkaller.appspot.com/x/.config?x=c36a72af2123e78a
dashboard link: https://syzkaller.appspot.com/bug?extid=d89b30c46434c433dbf8
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=170f6a47400000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=12e1df7b400000

Reported-by: syzbot+d89b30c46434c433dbf8@...kaller.appspotmail.com
Fixes: b8a51b38 ("fou, fou6: ICMP error handlers for FoU and GUE")