Re: selftests: seccomp_bpf failure on 5.15

Eric W. Biederman
2021-11-02T18:22:32Z

Kees Cook <keescook@chromium.org> writes:

> On Thu, Oct 28, 2021 at 05:06:53PM -0500, Eric W. Biederman wrote:
>> Kees Cook <keescook@chromium.org> writes:
>>
>> > On Thu, Oct 28, 2021 at 12:26:26PM -0500, Eric W. Biederman wrote:
>>
>> Is it a problem that the debugger can see the signal if the process does
>> not?
>
> Right, I'm trying to understand that too. However, my neighbor just lost
> power. :|
>
> What I was in the middle of checking was what ptrace "sees" going
> through a fatal SIGSYS; my initial debugging attempts were weird.

Kees have you regained power and had a chance to see my SA_IMMUTABLE
patch?

Does what I implemented seem like it will work for you?

I think it is a solid and simple solution to a pair of problems with my
change to use the ordinary coredump path for seccomp. But I would very
much love to hear it seems reasonable to you, as you were looking at the
problem as well.

Eric