linux-kernel - Re: [syzbot] WARNING in drm_gem_shmem_vm

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Message-ID: <000000000000942c2205d6dc0896@google.com>
Date:   Sun, 30 Jan 2022 23:50:08 -0800
From:   syzbot <syzbot+91525b2bd4b5dff71619@...kaller.appspotmail.com>
To:     airlied@...ux.ie, bugs-a21@...nlit-rail.com,
        christian.koenig@....com, daniel.vetter@...ll.ch,
        daniel.vetter@...el.com, daniel@...ll.ch,
        dri-devel@...ts.freedesktop.org, javierm@...hat.com,
        linaro-mm-sig-owner@...ts.linaro.org,
        linaro-mm-sig@...ts.linaro.org, linux-kernel@...r.kernel.org,
        linux-media@...r.kernel.org, maarten.lankhorst@...ux.intel.com,
        maxime@...no.tech, melissa.srw@...il.com, mripard@...nel.org,
        sumit.semwal@...aro.org, syzkaller-bugs@...glegroups.com,
        tzimmermann@...e.de
Subject: Re: [syzbot] WARNING in drm_gem_shmem_vm_open

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=126571e0700000
start commit:   5d6ab0bb408f Merge tag 'xtensa-20211008' of git://github.c..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=32e6048063923b7b
dashboard link: https://syzkaller.appspot.com/bug?extid=91525b2bd4b5dff71619
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=11073300b00000

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