linux-kernel - Re: [RFC FIX PATCH] x86/e820: Stop kernel boot when RAM resource reservation fails

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: <YtV3Ipvt96X/iO2J@zn.tnic>
Date:   Mon, 18 Jul 2022 17:07:14 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Bharata B Rao <bharata@....com>
Cc:     linux-kernel@...r.kernel.org, tglx@...utronix.de, mingo@...hat.com,
        x86@...nel.org, dave.hansen@...ux.intel.com, nikunj@....com,
        hpa@...or.com, Abraham.Shaju@....com
Subject: Re: [RFC FIX PATCH] x86/e820: Stop kernel boot when RAM resource
 reservation fails

On Mon, Jul 18, 2022 at 08:24:08PM +0530, Bharata B Rao wrote:
> It may be a weird guest configuration, but it looks like
> a kernel bug exposed by QEMU.

I betcha you can generate a lot of "kernel bugs" with weird qemu
options. If it is not a real use case, nobody cares.

And even if it were a real use case, panicking the machine is not the
right fix.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette