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Date:   Mon, 20 Jan 2020 10:22:00 -0800
From:   syzbot <syzbot+c1a1fb435465986efe35@...kaller.appspotmail.com>
To:     a@...table.cc, b.a.t.m.a.n@...ts.open-mesh.org,
        coreteam@...filter.org, davem@...emloft.net, fw@...len.de,
        gregkh@...uxfoundation.org, info@...ux.net, jeremy@...zel.net,
        kadlec@...filter.org, kstewart@...uxfoundation.org,
        linux-kernel@...r.kernel.org, lipeng321@...wei.com,
        liuyonglong@...wei.com, mareklindner@...mailbox.ch,
        netdev@...r.kernel.org, netfilter-devel@...r.kernel.org,
        pablo@...filter.org, salil.mehta@...wei.com, sbrivio@...hat.com,
        shuliubin@...wei.com, sw@...onwunderlich.de,
        syzkaller-bugs@...glegroups.com, tglx@...utronix.de,
        yisen.zhuang@...wei.com
Subject: Re: KASAN: slab-out-of-bounds Read in bitmap_ipmac_gc

syzbot has bisected this bug to:

commit 0d581ba311a27762fe1a14e5db5f65d225b3d844
Author: Yonglong Liu <liuyonglong@...wei.com>
Date:   Wed Jul 3 11:12:30 2019 +0000

    net: hns: add support for vlan TSO

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=16d5dfaee00000
start commit:   def9d278 Linux 5.5-rc7
git tree:       upstream
final crash:    https://syzkaller.appspot.com/x/report.txt?x=15d5dfaee00000
console output: https://syzkaller.appspot.com/x/log.txt?x=11d5dfaee00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=cf8e288883e40aba
dashboard link: https://syzkaller.appspot.com/bug?extid=c1a1fb435465986efe35
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=153ac495e00000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=153471d1e00000

Reported-by: syzbot+c1a1fb435465986efe35@...kaller.appspotmail.com
Fixes: 0d581ba311a2 ("net: hns: add support for vlan TSO")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection

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