Re: [PATCH v4] bpf: Fix KASAN use-after-free Read in compute_effective_progs

[Tadeusz Struk]

Hi Andrii,
On 5/23/22 15:47, Andrii Nakryiko wrote:
> > Hi Andrii,
> > Do you have any more feedback? Does it look better to you now?
> Hi, this is on my TODO list, but I need a bit more focused time to
> think all this through and I haven't managed to get it in last week.
> I'm worried about the percpu_ref_is_zero(&desc->bpf.refcnt) portion
> and whether it can cause some skew in the calculated array index, I
> need to look at this a bit more in depth. Sorry for the delay.

Did you get a chance to look at this yet?

--
Thanks,
Tadeusz