linux-kernel - Re: [PATCH] stackinit: Keep selftest union size small on m68k

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Message-ID: <CAMuHMdUzKpJ_RaOxctfkL+=TJ=U-oKdF1iWH6or+UcwUTJNpcg@mail.gmail.com>
Date: Thu, 6 Feb 2025 08:49:19 +0100
From: Geert Uytterhoeven <geert@...ux-m68k.org>
To: Kees Cook <kees@...nel.org>
Cc: linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH] stackinit: Keep selftest union size small on m68k

Hi Kees,

On Tue, 4 Feb 2025 at 18:45, Kees Cook <kees@...nel.org> wrote:
> The stack frame on m68k is very sensitive to the size of what needs to
> be stored. Like done for long string testing, reduce the size of the
> large trailing struct in the union initialization testing.
>
> Reported-by: Geert Uytterhoeven <geert@...ux-m68k.org>
> Closes: https://lore.kernel.org/all/CAMuHMdXW8VbtOAixO7w+aDOG70aZtZ50j1Ybcr8B3eYnRUcrcA@mail.gmail.com
> Fixes: e71a29db79da ("stackinit: Add union initialization to selftests")
> Signed-off-by: Kees Cook <kees@...nel.org>

Thanks for your patch!

# stackinit: pass:102 fail:0 skip:6 total:108

Tested-by: Geert Uytterhoeven <geert@...ux-m68k.org>

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds