linux-kernel - Re: [PATCH v2] x86/mce: fix wrong no-return-ip logic in do_machine

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]

Date:   Mon, 22 Feb 2021 10:24:03 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Aili Yao <yaoaili@...gsoft.com>
Cc:     tony.luck@...el.com, mingo@...hat.com, tglx@...utronix.de,
        hpa@...or.com, x86@...nel.org, linux-edac@...r.kernel.org,
        linux-kernel@...r.kernel.org, yangfeng1@...gsoft.com
Subject: Re: [PATCH v2] x86/mce: fix wrong no-return-ip logic in
 do_machine_check()

On Mon, Feb 22, 2021 at 11:50:07AM +0800, Aili Yao wrote:
> From commit b2f9d678e28c ("x86/mce: Check for faults tagged in
> EXTABLE_CLASS_FAULT exception table entries"), When there is a
> memory MCE_AR_SEVERITY error with no return ip,

What is a "no return ip" - MCG_STATUS_RIPV?

How do you trigger this error?

-- 
Regards/Gruss,
    Boris.

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