On Thu, Jun 2, 2022 at 7:37 AM Tadeusz Struk tadeusz.struk@linaro.org wrote:
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?
Hm.. I've applied it two days ago, but for some reason there was no notification from the bot. It's now c89c79fda9b6 ("bpf: Fix KASAN use-after-free Read in compute_effective_progs").
-- Thanks, Tadeusz