netdev - Re: [syzbot] inconsistent lock state in find_vmap

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Date:   Thu, 11 Aug 2022 03:43:07 -0700
From:   syzbot <syzbot+8d19062486784d15dda9@...kaller.appspotmail.com>
To:     alan.maguire@...cle.com, andrii@...nel.org, ast@...nel.org,
        bp@...en8.de, bpf@...r.kernel.org, daniel@...earbox.net,
        dave.hansen@...ux.intel.com, gor@...ux.ibm.com, hpa@...or.com,
        john.fastabend@...il.com, kafai@...com, kpsingh@...nel.org,
        linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
        luto@...nel.org, mingo@...hat.com, netdev@...r.kernel.org,
        peterz@...radead.org, rdunlap@...radead.org, songliubraving@...com,
        syzkaller-bugs@...glegroups.com, tglx@...utronix.de,
        x86@...nel.org, yhs@...com
Subject: Re: [syzbot] inconsistent lock state in find_vmap_area

syzbot has bisected this issue to:

commit 43174f0d4597325cb91f1f1f55263eb6e6101036
Author: Alan Maguire <alan.maguire@...cle.com>
Date:   Mon Nov 29 10:00:40 2021 +0000

    libbpf: Silence uninitialized warning/error in btf_dump_dump_type_data

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1350eb05080000
start commit:   200e340f2196 Merge tag 'pull-work.dcache' of git://git.ker..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=10d0eb05080000
console output: https://syzkaller.appspot.com/x/log.txt?x=1750eb05080000
kernel config:  https://syzkaller.appspot.com/x/.config?x=a3f4d6985d3164cd
dashboard link: https://syzkaller.appspot.com/bug?extid=8d19062486784d15dda9
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1252c5a7080000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1160a8e3080000

Reported-by: syzbot+8d19062486784d15dda9@...kaller.appspotmail.com
Fixes: 43174f0d4597 ("libbpf: Silence uninitialized warning/error in btf_dump_dump_type_data")

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