Re: KASAN: out-of-bounds Read in __switch_to (2)

[Dmitry Vyukov]

On Thu, Oct 29, 2020 at 3:10 PM syzbot
<syzbot+2667188e965125ab6e7a@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=174684b8500000
> start commit:   fb0155a0 Merge tag 'nfs-for-5.9-3' of git://git.linux-nfs...
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=41b736b7ce1b3ea4
> dashboard link: https://syzkaller.appspot.com/bug?extid=2667188e965125ab6e7a
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=11743a37900000
>
> 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()