linux-kernel - Re: [PATCH 00/15] selftests/seccomp: Refactor change

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Date:   Mon, 14 Sep 2020 13:32:09 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Michael Ellerman <mpe@...erman.id.au>
Cc:     linux-kernel@...r.kernel.org,
        Thadeu Lima de Souza Cascardo <cascardo@...onical.com>,
        Max Filippov <jcmvbkbc@...il.com>,
        Christian Brauner <christian@...uner.io>,
        Andy Lutomirski <luto@...capital.net>,
        Will Drewry <wad@...omium.org>,
        linux-kselftest@...r.kernel.org, linux-mips@...r.kernel.org,
        linux-xtensa@...ux-xtensa.org,
        linux-arm-kernel@...ts.infradead.org, linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH 00/15] selftests/seccomp: Refactor change_syscall()

On Mon, Sep 14, 2020 at 10:15:18PM +1000, Michael Ellerman wrote:
> Kees Cook <keescook@...omium.org> writes:
> > Hi,
> >
> > This refactors the seccomp selftest macros used in change_syscall(),
> > in an effort to remove special cases for mips, arm, arm64, and xtensa,
> > which paves the way for powerpc fixes.
> >
> > I'm not entirely done testing, but all-arch build tests and x86_64
> > selftests pass. I'll be doing arm, arm64, and i386 selftests shortly,
> > but I currently don't have an easy way to check xtensa, mips, nor
> > powerpc. Any help there would be appreciated!
> 
> The series builds fine for me, and all the tests pass (see below).
> 
> Thanks for picking up those changes to deal with powerpc being oddball.
> 
> Tested-by: Michael Ellerman <mpe@...erman.id.au> (powerpc)

Awesome; thanks!

However...

> 
> cheers
> 
> 
> ./seccomp_bpf
> TAP version 13
> 1..86
> # Starting 86 tests from 7 test cases.
> #  RUN           global.kcmp ...
> #            OK  global.kcmp
> ok 1 global.kcmp
> [...]
> #  RUN           global.KILL_thread ...
> TAP version 13
> 1..86
> # Starting 86 tests from 7 test cases.

Was this a mis-paste, or has something very very bad happened here in
global.KILL_one_arg_six finishes?

> #  RUN           global.kcmp ...
> #            OK  global.kcmp
> ok 1 global.kcmp
> [...]
> #  RUN           global.user_notification_basic ...
> TAP version 13
> 1..86
> # Starting 86 tests from 7 test cases.
> [...]
> #  RUN           global.user_notification_basic ...
> TAP version 13
> 1..86
> # Starting 86 tests from 7 test cases.
> [...]
> #  RUN           global.user_notification_signal ...
> TAP version 13
> 1..86
> # Starting 86 tests from 7 test cases.
> [...]
> #  RUN           global.user_notification_closed_listener ...
> TAP version 13
> 1..86
> # Starting 86 tests from 7 test cases.
> [...]
> #  RUN           global.user_notification_child_pid_ns ...
> TAP version 13
> 1..86
> # Starting 86 tests from 7 test cases.
> [...]
> #  RUN           global.user_notification_sibling_pid_ns ...
> TAP version 13
> 1..86
> # Starting 86 tests from 7 test cases.
> [...]
> #  RUN           global.user_notification_sibling_pid_ns ...
> TAP version 13
> 1..86
> # Starting 86 tests from 7 test cases.
> [...]
> #  RUN           global.user_notification_sibling_pid_ns ...
> TAP version 13
> 1..86
> # Starting 86 tests from 7 test cases.
> [...]
> #  RUN           global.user_notification_fault_recv ...
> TAP version 13
> 1..86
> # Starting 86 tests from 7 test cases.
> [...]
> #  RUN           global.user_notification_continue ...
> TAP version 13
> 1..86
> # Starting 86 tests from 7 test cases.
> [...]
> #  RUN           global.user_notification_filter_empty ...
> TAP version 13
> 1..86
> # Starting 86 tests from 7 test cases.
> [...]
> #  RUN           global.user_notification_filter_empty_threaded ...
> TAP version 13
> 1..86
> # Starting 86 tests from 7 test cases.
> [...]
> #  RUN           global.user_notification_addfd ...
> TAP version 13
> 1..86
> # Starting 86 tests from 7 test cases.
> [...]
> #  RUN           global.user_notification_addfd_rlimit ...
> TAP version 13
> 1..86
> # Starting 86 tests from 7 test cases.
> [...]
> # PASSED: 86 / 86 tests passed.
> # Totals: pass:86 fail:0 xfail:0 xpass:0 skip:0 error:0

And after every user_notification test? O_O

-- 
Kees Cook