Re: BUG: unable to handle kernel paging request in pvclock_gtod_notify

From: Dmitry Vyukov
Date: Wed Nov 11 2020 - 06:11:35 EST


On Sun, Nov 1, 2020 at 11:11 AM syzbot
<syzbot+815c663e220da75b02b6@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> syzbot suspects this issue was fixed by commit:
>
> commit a49145acfb975d921464b84fe00279f99827d816
> Author: George Kennedy <george.kennedy@xxxxxxxxxx>
> Date: Tue Jul 7 19:26:03 2020 +0000
>
> fbmem: add margin check to fb_check_caps()
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17499724500000
> start commit: 60e72093 Merge tag 'clk-fixes-for-linus' of git://git.kern..
> git tree: upstream
> kernel config: https://syzkaller.appspot.com/x/.config?x=89ab6a0c48f30b49
> dashboard link: https://syzkaller.appspot.com/bug?extid=815c663e220da75b02b6
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1162b04d900000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=135e7383900000
>
> If the result looks correct, please mark the issue as fixed by replying with:
>
> #syz fix: fbmem: add margin check to fb_check_caps()
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection

#syz fix: fbmem: add margin check to fb_check_caps()