netdev - Re: [syzbot] BUG: stack guard page was hit in inet6

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Date:   Fri, 20 Jan 2023 18:06:27 -0800
From:   syzbot <syzbot+04c21ed96d861dccc5cd@...kaller.appspotmail.com>
To:     andrii@...nel.org, ast@...nel.org, bpf@...r.kernel.org,
        daniel@...earbox.net, davem@...emloft.net, edumazet@...gle.com,
        error27@...il.com, hdanton@...a.com, jakub@...udflare.com,
        john.fastabend@...il.com, kafai@...com, kernel-team@...udflare.com,
        kpsingh@...nel.org, kuba@...nel.org, linux-kernel@...r.kernel.org,
        lkp@...el.com, lmb@...udflare.com, netdev@...r.kernel.org,
        oe-kbuild-all@...ts.linux.dev, oe-kbuild@...ts.linux.dev,
        pabeni@...hat.com, songliubraving@...com,
        syzkaller-bugs@...glegroups.com, yhs@...com
Subject: Re: [syzbot] BUG: stack guard page was hit in inet6_release

syzbot has bisected this issue to:

commit 38207a5e81230d6ffbdd51e5fa5681be5116dcae
Author: John Fastabend <john.fastabend@...il.com>
Date:   Fri Nov 19 18:14:17 2021 +0000

    bpf, sockmap: Attach map progs to psock early for feature probes

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=106884b9480000
start commit:   c8451c141e07 Merge tag 'acpi-6.2-rc2' of git://git.kernel...
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=126884b9480000
console output: https://syzkaller.appspot.com/x/log.txt?x=146884b9480000
kernel config:  https://syzkaller.appspot.com/x/.config?x=2651619a26b4d687
dashboard link: https://syzkaller.appspot.com/bug?extid=04c21ed96d861dccc5cd
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14a1a692480000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1575dc34480000

Reported-by: syzbot+04c21ed96d861dccc5cd@...kaller.appspotmail.com
Fixes: 38207a5e8123 ("bpf, sockmap: Attach map progs to psock early for feature probes")

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