linux-kernel - Re: [PATCH 1/2] kselftest: Add a ksft

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <202309291031.1B2A2EE@keescook>
Date:   Fri, 29 Sep 2023 10:31:56 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Mark Brown <broonie@...nel.org>
Cc:     Shuah Khan <shuah@...nel.org>,
        Eric Biederman <ebiederm@...ssion.com>,
        linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org
Subject: Re: [PATCH 1/2] kselftest: Add a ksft_perror() helper

On Fri, Sep 29, 2023 at 09:50:53AM +0200, Mark Brown wrote:
> On Thu, Sep 28, 2023 at 05:48:22PM -0700, Kees Cook wrote:
> 
> > > nolibc doesn't have a strerror() and adding the table of strings required
> > > doesn't seem like a good fit for what it's trying to do so when we're using
> > > that only print the errno.
> 
> > Oh, interesting... what environment ends up without strerror()?
> 
> Like I say it's for nolibc - it's just some header files (all in the
> kernel source), while it generally aims to be libc compatible it's
> intentionally very small.

Right, I mean, how would one normally encounter this environment? Running
the selftests on m68k userspace or something?

-- 
Kees Cook