linux-kernel - Re: WARNING in debug_check_no_obj

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Date:   Sun, 23 Jun 2019 02:47:00 -0700
From:   syzbot <syzbot+b972214bb803a343f4fe@...kaller.appspotmail.com>
To:     alexander.h.duyck@...el.com, amritha.nambiar@...el.com,
        andriy.shevchenko@...ux.intel.com, ast@...nel.org,
        bpf@...r.kernel.org, daniel@...earbox.net, davem@...emloft.net,
        dmitry.torokhov@...il.com, f.fainelli@...il.com,
        idosch@...lanox.com, jeffrey.t.kirsher@...el.com,
        jiri@...lanox.com, kafai@...com, kgraul@...ux.ibm.com,
        linux-kernel@...r.kernel.org, linux-s390@...r.kernel.org,
        netdev@...r.kernel.org, songliubraving@...com,
        syzkaller-bugs@...glegroups.com, tyhicks@...onical.com,
        ubraun@...ux.ibm.com, wanghai26@...wei.com, yhs@...com,
        yuehaibing@...wei.com
Subject: Re: WARNING in debug_check_no_obj_freed

syzbot has bisected this bug to:

commit 99182beed858a1bde22f60046602b9b223225f73
Author: Daniel Borkmann <daniel@...earbox.net>
Date:   Tue Apr 2 21:17:19 2019 +0000

     Merge branch 'bpf-selftest-clang-fixes'

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=12faf81aa00000
start commit:   bed3c0d8 Merge tag 'for-5.2-rc5-tag' of git://git.kernel.o..
git tree:       upstream
final crash:    https://syzkaller.appspot.com/x/report.txt?x=11faf81aa00000
console output: https://syzkaller.appspot.com/x/log.txt?x=16faf81aa00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=28ec3437a5394ee0
dashboard link: https://syzkaller.appspot.com/bug?extid=b972214bb803a343f4fe
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12fcf0b2a00000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=17a22ad6a00000

Reported-by: syzbot+b972214bb803a343f4fe@...kaller.appspotmail.com
Fixes: 99182beed858 ("Merge branch 'bpf-selftest-clang-fixes'")

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