linux-kernel - Re: [syzbot] BUG: unable to handle kernel paging request in bitfill

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Date:   Sat, 29 Jan 2022 06:07:09 -0800
From:   syzbot <syzbot+a4edd73d589b0b7efbeb@...kaller.appspotmail.com>
To:     b.zolnierkie@...sung.com, bugs-a21@...nlit-rail.com,
        dri-devel@...ts.freedesktop.org, javierm@...hat.com,
        linux-fbdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        maxime@...no.tech, ngraniel@...obongo.net,
        syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] BUG: unable to handle kernel paging request in
 bitfill_aligned (2)

syzbot suspects this issue was fixed by commit:

commit 0499f419b76f94ede08304aad5851144813ac55c
Author: Javier Martinez Canillas <javierm@...hat.com>
Date:   Mon Jan 10 09:56:25 2022 +0000

    video: vga16fb: Only probe for EGA and VGA 16 color graphic cards

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1752f5c0700000
start commit:   2a987e65025e Merge tag 'perf-tools-fixes-for-v5.16-2021-12..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=7d5e878e3399b6cc
dashboard link: https://syzkaller.appspot.com/bug?extid=a4edd73d589b0b7efbeb
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=16671badb00000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=122beabdb00000

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

#syz fix: video: vga16fb: Only probe for EGA and VGA 16 color graphic cards

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