linux-kernel - Re: [PATCH 2/2] arm/mm : Report actual image regions in /proc/iomem

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: <ZAXKHDb4QY1awyRA@shell.armlinux.org.uk>
Date:   Mon, 6 Mar 2023 11:10:20 +0000
From:   "Russell King (Oracle)" <linux@...linux.org.uk>
To:     Jungseung Lee <js07.lee@...sung.com>
Cc:     linus.walleij@...aro.org, amit.kachhap@....com, ardb@...nel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        keescook@...omium.org, js07.lee@...il.com
Subject: Re: [PATCH 2/2] arm/mm : Report actual image regions in /proc/iomem

On Mon, Mar 06, 2023 at 02:51:55PM +0900, Jungseung Lee wrote:
>  The resource reservations in /proc/iomem made for the kernel image did
>  not reflect the gaps between text, rodata, and data.
>  Add the "rodata" resource and update the start/end calculations.
> 
>  Before :
> 04000000-2f7fffff : System RAM
>   04100000-04cfffff : Kernel code
>   04e00000-05369a27 : Kernel data
> 
>  After :
> 04000000-2f7fffff : System RAM
>   04100000-049fffff : Kernel code
>   04a00000-04cb2fff : Kernel rodata
>   04e00000-05369a27 : Kernel data

NAK. This is API, and programs do read and parse this file. It is
important that this file reports these parameters in a similar way
to other architectures. Other architectures do not split up the
individual regions.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!