Messages in this thread | | | From | Toke Høiland-Jørgensen <> | Subject | Re: [PATCH] bpf: validate bpf_func when BPF_JIT is enabled | Date | Fri, 13 Sep 2019 14:19:26 +0200 |
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Sami Tolvanen <samitolvanen@google.com> writes:
> On Thu, Sep 12, 2019 at 3:52 AM Toke Høiland-Jørgensen <toke@redhat.com> wrote: >> I think it would be good if you do both. I'm a bit worried that XDP >> performance will end up in a "death by a thousand paper cuts" situation, >> so I'd rather push back on even relatively small overheads like this; so >> being able to turn it off in the config would be good. > > OK, thanks for the feedback. In that case, I think it's probably > better to wait until we have CFI ready for upstreaming and use the > same config for this one.
SGTM, thanks!
>> Can you share more details about what the "future CFI checking" is >> likely to look like? > > Sure, I posted an overview of CFI and what we're doing in Pixel devices here: > > https://android-developers.googleblog.com/2018/10/control-flow-integrity-in-android-kernel.html
Great, thank you.
-Toke
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