linux-kernel - RE: [PATCH v2 2/5] x86/mce/inject: Warn the user on a not set valid bit in MCA

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:   Wed, 20 Oct 2021 15:06:58 +0000
From:   "Luck, Tony" <tony.luck@...el.com>
To:     Smita Koralahalli <Smita.KoralahalliChannabasappa@....com>,
        "x86@...nel.org" <x86@...nel.org>,
        "linux-edac@...r.kernel.org" <linux-edac@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     "H . Peter Anvin" <hpa@...or.com>,
        "yazen.ghannam@....com" <yazen.ghannam@....com>
Subject: RE: [PATCH v2 2/5] x86/mce/inject: Warn the user on a not set valid
 bit in MCA_STATUS

+	if (!(i_mce.status & MCI_STATUS_VAL))
+		pr_warn("Handlers might ignore signatures with Val=0 in MCA_STATUS\n");

I don't think there is any "might" about this. All code paths start by checking for MCI_STATUS_VAL
and skipping if it isn't set.

s/might/will/

-Tony