From: Kees Cook <keescook@chromium.org>
To: James Jones <linux@theinnocuous.com>
Cc: bp@alien8.de, x86@kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] x86: Remove a.out support
Date: Wed, 16 Mar 2022 09:10:39 -0700 [thread overview]
Message-ID: <202203160909.B1A022B@keescook> (raw)
In-Reply-To: <bfbd9394-161b-0e70-00c5-79d0dd722e08@theinnocuous.com>
On Wed, Mar 16, 2022 at 05:06:10AM +0000, James Jones wrote:
> I dug the scripts up in the state they were in when I gave up (September
> 2020 according to mtime), and put them on github in case anyone wants to
> have a go at it:
>
> https://github.com/cubanismo/aout-to-elf/
>
> It was an interesting problem in its own right, and I'd be curious to
> know what I missed.
Yeah, this is a good start. I think the main problem is with how program
entry works, specifically that %esp is pointing to argc (with all the
args in memory above there), which isn't the way ELF sets %esp.
It might be possible to make a userspace loader, though. Hmm.
--
Kees Cook
next prev parent reply other threads:[~2022-03-16 16:10 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-12 17:54 [PATCH] x86: Remove a.out support James Jones
2022-03-12 18:06 ` James Jones
2022-03-13 11:56 ` Borislav Petkov
2022-03-13 18:26 ` James Jones
2022-03-15 9:44 ` Borislav Petkov
2022-03-15 19:51 ` Kees Cook
2022-03-16 5:06 ` James Jones
2022-03-16 12:38 ` Arnd Bergmann
2022-03-16 22:30 ` Kees Cook
2022-03-17 2:04 ` James Jones
2022-03-17 2:08 ` David Laight
2022-03-17 10:17 ` Borislav Petkov
2022-03-17 18:53 ` Kees Cook
2022-03-17 2:32 ` David Laight
2022-03-17 3:22 ` Kees Cook
2022-03-16 16:10 ` Kees Cook [this message]
2022-03-16 17:05 ` David Laight
2022-04-02 22:14 ` Maciej W. Rozycki
2022-04-03 2:24 ` Kees Cook
2022-04-04 11:03 ` Maciej W. Rozycki
2022-04-04 17:07 ` David Laight
2022-04-04 18:18 ` Kees Cook
2022-04-04 8:24 ` Geert Uytterhoeven
-- strict thread matches above, loose matches on Subject: below --
2022-01-13 16:01 Borislav Petkov
2022-01-13 18:08 ` Kees Cook
2022-01-13 18:47 ` Theodore Ts'o
2022-01-13 22:56 ` Borislav Petkov
2022-01-14 4:06 ` Theodore Ts'o
2022-01-14 10:40 ` Arnd Bergmann
2022-01-14 19:09 ` Borislav Petkov
2022-01-14 9:51 ` David Laight
2022-01-14 14:52 ` Geert Uytterhoeven
2022-01-14 18:57 ` Theodore Ts'o
2022-01-14 19:00 ` Geert Uytterhoeven
2022-01-14 19:12 ` Borislav Petkov
2022-01-14 19:21 ` Geert Uytterhoeven
2022-01-14 19:35 ` Borislav Petkov
2022-01-15 11:37 ` Borislav Petkov
2022-01-15 19:42 ` John Paul Adrian Glaubitz
2022-03-09 20:03 ` [PATCH] a.out: Stop building a.out/osf1 support on alpha and m68k Eric W. Biederman
2022-03-09 22:04 ` Kees Cook
2022-03-10 23:29 ` [PATCH] x86: Remove a.out support Eric W. Biederman
2022-03-10 23:35 ` Linus Torvalds
2022-03-11 8:47 ` Arnd Bergmann
2022-03-11 10:03 ` Borislav Petkov
2022-01-15 4:54 ` David Laight
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