linux-kernel - Re: [syzbot] unexpected kernel reboot (8)

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Date:   Fri, 10 Mar 2023 12:53:34 -0800
From:   syzbot <syzbot+8346a1aeed52cb04c9ba@...kaller.appspotmail.com>
To:     alexandr.lobakin@...el.com, dvyukov@...gle.com,
        jirislaby@...nel.org, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, miklos@...redi.hu, mingo@...nel.org,
        nogikh@...gle.com, penguin-kernel@...ove.SAKURA.ne.jp,
        penguin-kernel@...ove.sakura.ne.jp, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] unexpected kernel reboot (8)

syzbot suspects this issue was fixed by commit:

commit 7734a0f31e99c433df3063bbb7e8ee5a16a2cb82
Author: Alexander Lobakin <alexandr.lobakin@...el.com>
Date:   Mon Jan 9 17:04:02 2023 +0000

    x86/boot: Robustify calling startup_{32,64}() from the decompressor code

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=14606624c80000
start commit:   1fe4fd6f5cad Merge tag 'xfs-6.2-fixes-2' of git://git.kern..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=edc860b1c9b6751
dashboard link: https://syzkaller.appspot.com/bug?extid=8346a1aeed52cb04c9ba
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12baac4a480000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=118bf42c480000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: x86/boot: Robustify calling startup_{32,64}() from the decompressor code

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