linux-kernel - Re: WARNING in dma_buf

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Date:   Wed, 20 Mar 2019 18:21:00 -0700
From:   syzbot <syzbot+a9317fe7ad261fc76b88@...kaller.appspotmail.com>
To:     andy@...yhouse.net, davem@...emloft.net,
        dri-devel@...ts.freedesktop.org, gregkh@...uxfoundation.org,
        j.vosburgh@...il.com, linaro-mm-sig-owner@...ts.linaro.org,
        linaro-mm-sig@...ts.linaro.org, linux-kernel@...r.kernel.org,
        linux-media@...r.kernel.org, maheshb@...gle.com,
        netdev@...r.kernel.org, sumit.semwal@...aro.org,
        syzkaller-bugs@...glegroups.com, vfalico@...il.com
Subject: Re: WARNING in dma_buf_vunmap

syzbot has bisected this bug to:

commit d5e73f7be850323ae3adbbe84ed37a38b0c31476
Author: Mahesh Bandewar <maheshb@...gle.com>
Date:   Wed Mar 8 18:55:51 2017 +0000

     bonding: restructure arp-monitor

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=15e679f7200000
start commit:   d5e73f7b bonding: restructure arp-monitor
git tree:       upstream
final crash:    https://syzkaller.appspot.com/x/report.txt?x=17e679f7200000
console output: https://syzkaller.appspot.com/x/log.txt?x=13e679f7200000
kernel config:  https://syzkaller.appspot.com/x/.config?x=4a0a89f12ca9b0f5
dashboard link: https://syzkaller.appspot.com/bug?extid=a9317fe7ad261fc76b88
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=16f7b6f5400000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=105a2783400000

Reported-by: syzbot+a9317fe7ad261fc76b88@...kaller.appspotmail.com
Fixes: d5e73f7b ("bonding: restructure arp-monitor")