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Date:   Sat, 14 Mar 2020 10:20:02 -0700
From:   syzbot <syzbot+a85062dec5d65617cc1c@...kaller.appspotmail.com>
To:     a@...table.cc, arvid.brodin@...en.se,
        b.a.t.m.a.n@...ts.open-mesh.org, coreteam@...filter.org,
        davem@...emloft.net, florent.fourcot@...irst.fr, fw@...len.de,
        jeremy@...zel.net, johannes.berg@...el.com,
        kadlec@...ckhole.kfki.hu, kadlec@...filter.org,
        linux-kernel@...r.kernel.org, mareklindner@...mailbox.ch,
        netdev@...r.kernel.org, netfilter-devel@...r.kernel.org,
        pablo@...filter.org, sw@...onwunderlich.de,
        syzkaller-bugs@...glegroups.com, xiyou.wangcong@...il.com
Subject: Re: KASAN: slab-out-of-bounds Read in bitmap_ipmac_destroy

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=10aef753e00000
start commit:   4703d911 Merge tag 'xarray-5.5' of git://git.infradead.org..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=83c00afca9cf5153
dashboard link: https://syzkaller.appspot.com/bug?extid=a85062dec5d65617cc1c
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1301ed85e00000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=14b7b79ee00000

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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