From: Michael Ellerman <mpe@ellerman.id.au>
To: Andy Lutomirski <luto@amacapital.net>
Cc: Andy Lutomirski <luto@kernel.org>, Ingo Molnar <mingo@kernel.org>,
X86 ML <x86@kernel.org>, Shuah Khan <shuah.kh@samsung.com>,
Borislav Petkov <bp@alien8.de>,
Denys Vlasenko <vda.linux@googlemail.com>,
Steven Rostedt <rostedt@goodmis.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v4] x86, selftests: Add sigreturn selftest
Date: Wed, 08 Apr 2015 13:42:10 +1000 [thread overview]
Message-ID: <1428464530.29968.3.camel@ellerman.id.au> (raw)
In-Reply-To: <CALCETrUg4dgnLa7NTtpz4qPjf3rTZEZZD2Kc7J6hbEjUtTzr9Q@mail.gmail.com>
On Mon, 2015-04-06 at 23:11 -0700, Andy Lutomirski wrote:
> On Mon, Apr 6, 2015 at 8:39 PM, Michael Ellerman <mpe@ellerman.id.au> wrote:
> > On Mon, 2015-04-06 at 19:01 -0700, Andy Lutomirski wrote:
> >> This is my sigreturn test, added mostly unchanged from its old home.
> >> It exercises the sigreturn(2) syscall, specifically focusing on its
> >> interactions with various IRET corner cases. It tests for correct
> >> behavior in several areas that were historically dangerously buggy.
> >> For example, it exercises espfix on kernels of both bitnesses under
> >> various conditions, and it contains exploits for several now-fixed
> >> bugs in IRET error handling.
> >>
> >> If you run it on older kernels, your system will crash. It probably
> >> won't eat your data in the process.
> >>
> >> There is no released kernel on which the sigreturn_64 test will
> >> pass, but it passes on tip:x86/asm.
> >>
> >> IMO it's unfortunate that I need to provide a special script to run
> >> tests. I'd rather just list my targets.
> >
> > If you use lib.mk you can.
> >
> > https://git.kernel.org/cgit/linux/kernel/git/shuah/linux-kselftest.git/log/?h=next
> >
> > See for example:
> >
> > https://git.kernel.org/cgit/linux/kernel/git/shuah/linux-kselftest.git/commit/?h=next&id=5744de542dd4b963c2975e6f70844ce2899864e4
>
> Will do for 4.2. In the mean time, there's no base on which lib.mk
> exists and the test works.
OK.
Shua seems to have already sent a pull request for 4.1, which is rather early
to say the least, but suggests you've missed 4.1 anyway - unless you want it to
go via some other tree.
cheers
next prev parent reply other threads:[~2015-04-08 3:42 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-07 2:01 [PATCH v4] x86, selftests: Add sigreturn selftest Andy Lutomirski
2015-04-07 3:39 ` Michael Ellerman
2015-04-07 6:11 ` Andy Lutomirski
2015-04-08 3:42 ` Michael Ellerman [this message]
2015-04-08 4:39 ` Andy Lutomirski
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