linux-kernel - Re: [PATCH] selftests/nolibc: libc-test: avoid -Wstringop-overflow warnings

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 for Android: free password hash cracker in your pocket

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

Date:   Mon, 11 Sep 2023 08:04:49 +0200
From:   Willy Tarreau <w@....eu>
To:     Thomas Weißschuh <linux@...ssschuh.net>
Cc:     Shuah Khan <shuah@...nel.org>, linux-kselftest@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] selftests/nolibc: libc-test: avoid -Wstringop-overflow
 warnings

Hi Thomas,

On Sun, Sep 10, 2023 at 09:29:01PM +0200, Thomas Weißschuh wrote:
> Newer versions of glibc annotate the poll() function with
> __attribute__(access) which triggers a compiler warning inside the
> testcase poll_fault.
> Avoid this by using a plain NULL which is enough for the testcase.
> To avoid potential future warnings also adapt the other EFAULT
> testcases, except select_fault as NULL is a valid value for its
> argument.
(...)

Looks good to me. I wouldn't be surprised if we're soon forced to do
the same with select() on some archs where it might be emulated.

Feel free to push it to the shared repo.

Thanks!
Willy