linux-kernel - Re: [PATCH v5 1/2] module: Overwrite st_size instead of st

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: Windows password security audit tool. GUI, reports in PDF.

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

Message-ID: <alpine.LSU.2.21.1812061045320.17628@pobox.suse.cz>
Date:   Thu, 6 Dec 2018 10:45:49 +0100 (CET)
From:   Miroslav Benes <mbenes@...e.cz>
To:     Vincent Whitchurch <vincent.whitchurch@...s.com>
cc:     linux@...linux.org.uk, jeyu@...nel.org, dave.martin@....com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Vincent Whitchurch <rabinv@...s.com>
Subject: Re: [PATCH v5 1/2] module: Overwrite st_size instead of st_info

On Tue, 4 Dec 2018, Vincent Whitchurch wrote:

> st_info is currently overwritten after relocation and used to store the
> elf_type().  However, we're going to need it fix kallsyms on ARM's
> Thumb-2 kernels, so preserve st_info and overwrite the st_size field
> instead.  st_size is neither used by the module core nor by any
> architecture.
> 
> Reviewed-by: Dave Martin <Dave.Martin@....com>
> Signed-off-by: Vincent Whitchurch <vincent.whitchurch@...s.com>

Reviewed-by: Miroslav Benes <mbenes@...e.cz>

M