Re: [syzbot] general protection fault in list_lru_add

From: Fabio M. De Francesco
Date: Fri Mar 25 2022 - 08:38:10 EST


On venerdì 25 marzo 2022 06:47:36 CET Fabio M. De Francesco wrote:
> On giovedì 24 marzo 2022 20:45:00 CET Linus Torvalds wrote:
> > On Thu, Mar 24, 2022 at 12:41 PM syzbot
> > <syzbot+f8c45ccc7d5d45fc5965@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
> > >
> > > syzbot has tested the proposed patch and the reproducer did not trigger any issue:
> >
> > Heh, well that's unfortunate.
> >
> > I think the issue is that it triggered a new BUG() that didn't match
> > the previous NULL pointer dereference, so it thinks things are
> > "fixed".
> >
> > Linus
> >
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> >
>
> No, not at all, Linus!
>
> Unless I'm still sleeping with wide open eyes (it's 6.30 AM here), you are misunderstanding
> this message from Syzbot :)

Oh sorry for the noise.

I hadn't read his changes, so I didn't know that they were a no-op patch that wasn't meant
to fix the reported issue :(

Regards,

Fabio