From: Sebastian Ott <sebott@redhat.com>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: "Thomas Weißschuh" <linux@weissschuh.net>,
"Alexander Viro" <viro@zeniv.linux.org.uk>,
"Christian Brauner" <brauner@kernel.org>,
"Kees Cook" <keescook@chromium.org>,
"Mark Brown" <broonie@kernel.org>, "Willy Tarreau" <w@1wt.eu>,
linux-fsdevel@vger.kernel.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, stable@vger.kernel.org
Subject: Re: [PATCH] binfmt_elf: Support segments with 0 filesz and misaligned starts
Date: Mon, 25 Sep 2023 17:27:12 +0200 (CEST) [thread overview]
Message-ID: <84e974d3-ae0d-9eb5-49b2-3348b7dcd336@redhat.com> (raw)
In-Reply-To: <87jzsemmsd.fsf_-_@email.froward.int.ebiederm.org>
[-- Attachment #1: Type: text/plain, Size: 881 bytes --]
On Mon, 25 Sep 2023, Eric W. Biederman wrote:
>
> Implement a helper elf_load that wraps elf_map and performs all
> of the necessary work to ensure that when "memsz > filesz"
> the bytes described by "memsz > filesz" are zeroed.
>
> Link: https://lkml.kernel.org/r/20230914-bss-alloc-v1-1-78de67d2c6dd@weissschuh.net
> Reported-by: Sebastian Ott <sebott@redhat.com>
> Reported-by: Thomas Weißschuh <linux@weissschuh.net>
> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
> ---
> fs/binfmt_elf.c | 111 +++++++++++++++++++++---------------------------
> 1 file changed, 48 insertions(+), 63 deletions(-)
>
> Can you please test this one?
>
That one did the trick! The arm box booted successful, ran the binaries
that were used for the repo of this issue, and ran the nolibc compiled
binaries from kselftests that initially triggered the loader issues.
Thanks,
Sebastian
next prev parent reply other threads:[~2023-09-25 15:28 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-14 15:59 [PATCH RFC] binfmt_elf: fully allocate bss pages Thomas Weißschuh
2023-09-14 19:49 ` Eric W. Biederman
2023-09-14 22:18 ` Thomas Weißschuh
2023-09-15 19:35 ` Sebastian Ott
2023-09-15 22:15 ` Pedro Falcato
2023-09-15 22:41 ` Thomas Weißschuh
2023-09-18 14:11 ` kernel test robot
2023-09-21 10:36 ` Sebastian Ott
2023-09-25 0:50 ` Eric W. Biederman
2023-09-25 9:20 ` Sebastian Ott
2023-09-25 9:50 ` Eric W. Biederman
2023-09-25 12:59 ` [PATCH] binfmt_elf: Support segments with 0 filesz and misaligned starts Eric W. Biederman
2023-09-25 13:00 ` kernel test robot
2023-09-25 13:07 ` Eric W. Biederman
2023-09-25 15:27 ` Sebastian Ott [this message]
2023-09-25 17:06 ` Kees Cook
2023-09-26 3:27 ` Eric W. Biederman
2023-09-27 2:34 ` Kees Cook
2023-09-26 13:49 ` Dan Carpenter
2023-09-26 14:42 ` [PATCH v2] " Eric W. Biederman
2023-09-26 11:31 [PATCH] " kernel test robot
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