[PATCH v2 35/37] kasan, slub: reset tags when accessing metadata

Andrey Konovalov andreyknvl at google.com
Fri Sep 18 10:55:45 EDT 2020


On Fri, Sep 18, 2020 at 4:44 PM Marco Elver <elver at google.com> wrote:
>
> On Tue, Sep 15, 2020 at 11:16PM +0200, Andrey Konovalov wrote:
> [...]
> >  static void set_track(struct kmem_cache *s, void *object,
> > @@ -583,7 +585,8 @@ static void set_track(struct kmem_cache *s, void *object,
> >               unsigned int nr_entries;
> >
> >               metadata_access_enable();
> > -             nr_entries = stack_trace_save(p->addrs, TRACK_ADDRS_COUNT, 3);
> > +             nr_entries = stack_trace_save(kasan_reset_tag(p->addrs),
> > +                                             TRACK_ADDRS_COUNT, 3);
>
> Suggested edit (below 100 cols):
>
> -               nr_entries = stack_trace_save(kasan_reset_tag(p->addrs),
> -                                               TRACK_ADDRS_COUNT, 3);
> +               nr_entries = stack_trace_save(kasan_reset_tag(p->addrs), TRACK_ADDRS_COUNT, 3);
>

Ah, yes, it's a 100 lines now :) Will do in v3, thanks!



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