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Date:   Sun, 19 Jan 2020 17:35:01 -0800
From:   syzbot <syzbot+6491ea8f6dddbf04930e@...kaller.appspotmail.com>
To:     a@...table.cc, akpm@...ux-foundation.org, allison@...utok.net,
        arnd@...db.de, axboe@...nel.dk, b.a.t.m.a.n@...ts.open-mesh.org,
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        christian@...uner.io, coreteam@...filter.org, davem@...emloft.net,
        elena.reshetova@...el.com, florent.fourcot@...irst.fr,
        fw@...len.de, geert@...ux-m68k.org, hare@...e.com,
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        jcmvbkbc@...il.com, jeremy@...zel.net, johannes.berg@...el.com,
        kadlec@...filter.org, linux-api@...r.kernel.org,
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        syzkaller-bugs@...glegroups.com, tglx@...utronix.de,
        viro@...iv.linux.org.uk, will@...nel.org, x86@...nel.org
Subject: Re: KASAN: slab-out-of-bounds Read in bitmap_ip_ext_cleanup

syzbot has bisected this bug to:

commit d68dbb0c9ac8b1ff52eb09aa58ce6358400fa939
Author: Christian Brauner <christian@...uner.io>
Date:   Thu Jun 20 23:26:35 2019 +0000

    arch: handle arches who do not yet define clone3

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1456fed1e00000
start commit:   09d4f10a net: sched: act_ctinfo: fix memory leak
git tree:       net
final crash:    https://syzkaller.appspot.com/x/report.txt?x=1656fed1e00000
console output: https://syzkaller.appspot.com/x/log.txt?x=1256fed1e00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=7e89bd00623fe71e
dashboard link: https://syzkaller.appspot.com/bug?extid=6491ea8f6dddbf04930e
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=141af959e00000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1067fa85e00000

Reported-by: syzbot+6491ea8f6dddbf04930e@...kaller.appspotmail.com
Fixes: d68dbb0c9ac8 ("arch: handle arches who do not yet define clone3")

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

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