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Date:   Mon, 16 Mar 2020 05:49:02 -0700
From:   syzbot <syzbot+c1a1fb435465986efe35@...kaller.appspotmail.com>
To:     a@...table.cc, allison@...utok.net,
        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@...ckhole.kfki.hu,
        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 suspects this bug was fixed by commit:

commit 32c72165dbd0e246e69d16a3ad348a4851afd415
Author: Kadlecsik József <kadlec@...ckhole.kfki.hu>
Date:   Sun Jan 19 21:06:49 2020 +0000

    netfilter: ipset: use bitmap infrastructure completely

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1074c2a9e00000
start commit:   d96d875e Merge tag 'fixes_for_v5.5-rc8' of git://git.kerne..
git tree:       upstream
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=14e36185e00000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=104a7a11e00000

If the result looks correct, please mark the bug fixed by replying with:

#syz fix: netfilter: ipset: use bitmap infrastructure completely

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

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