linux-kernel - Re: [PATCH 0/6] tools/nolibc: fix some undefined behaviour and enable UBSAN

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Message-ID: <acffaf72-aca5-4301-ade4-ea12571e4392@paulmck-laptop>
Date: Fri, 18 Apr 2025 10:32:27 -0700
From: "Paul E. McKenney" <paulmck@...nel.org>
To: Thomas Weißschuh <linux@...ssschuh.net>
Cc: Willy Tarreau <w@....eu>, Shuah Khan <shuah@...nel.org>,
	linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org
Subject: Re: [PATCH 0/6] tools/nolibc: fix some undefined behaviour and
 enable UBSAN

On Wed, Apr 16, 2025 at 08:40:15PM +0200, Thomas Weißschuh wrote:
> Fix some issues uncovered by UBSAN and enable UBSAN for nolibc-test to
> avoid regressions.
> 
> Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>

Thank you, Thomas!  Are these intended to go into the current v6.15
release, or are you instead thinking in terms of the v6.16 merge window?
Either works for me, but left to myself, I would assume the v6.16
merge window.  ;-)

							Thanx, Paul

> ---
> Thomas Weißschuh (6):
>       tools/nolibc: add __nolibc_has_feature()
>       tools/nolibc: disable function sanitizer for _start_c()
>       tools/nolibc: properly align dirent buffer
>       tools/nolibc: fix integer overflow in i{64,}toa_r() and
>       selftests/nolibc: disable ubsan for smash_stack()
>       selftests/nolibc: enable UBSAN if available
> 
>  tools/include/nolibc/compiler.h              |  6 ++++++
>  tools/include/nolibc/crt.h                   |  5 +++++
>  tools/include/nolibc/dirent.h                |  1 +
>  tools/include/nolibc/stdlib.h                | 24 ++++++++----------------
>  tools/testing/selftests/nolibc/Makefile      |  3 ++-
>  tools/testing/selftests/nolibc/nolibc-test.c |  1 +
>  6 files changed, 23 insertions(+), 17 deletions(-)
> ---
> base-commit: 7c73c10b906778384843b9d3ac6c2224727bbf5c
> change-id: 20250416-nolibc-ubsan-028401698654
> 
> Best regards,
> -- 
> Thomas Weißschuh <linux@...ssschuh.net>
>