[PATCH v2 1/2] seccomp: notify user trap about unused filter

Kees Cook keescook at chromium.org
Fri May 29 07:56:50 UTC 2020


On Fri, May 29, 2020 at 09:51:37AM +0200, Christian Brauner wrote:
> Aside from this being not an issue now, can we please not dump seccomp
> filter contents in proc. That sounds terrible and what's the rationale,
> libseccomp already let's you dump filter contents while loading and you
> could ptrace it. But maybe I'm missing a giant need for this...

The use-case comes from Android wanting to audit seccomp filters at
runtime. I think this is stalled until there is a good answer to "what
are you going to audit for, and how, given raw BPF?"

-- 
Kees Cook


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