linux-kernel - [BUG] blacklist: Problem blacklisting hash (-13) during boot

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-next>] [day] [month] [year] [list]

Message-ID: <c8c65713-5cda-43ad-8018-20f2e32e4432@t-8ch.de>
Date:   Sat, 15 Oct 2022 05:16:49 +0200
From:   Thomas Weißschuh <thomas@...ch.de>
To:     Mickaël Salaün <mic@...ux.microsoft.com>,
        Jarkko Sakkinen <jarkko@...nel.org>,
        David Howells <dhowells@...hat.com>,
        David Woodhouse <dwmw2@...radead.org>, keyrings@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, Mark Pearson <markpearson@...ovo.com>
Subject: [BUG] blacklist: Problem blacklisting hash (-13) during boot

Hi,

Since 5.19 during boot I see lots of the following entries in dmesg:

blacklist: Problem blacklisting hash (-13)

This happens because the firmware contains duplicate blacklist entries.
As commit 6364d106e041 [0] modified the "blacklist" keyring to reject updates
this now leads to the spurious error messages.

The machine is a Thinkpad X1 Cargon Gen9 with BIOS revision 1.56 and firmware
revision 1.33.

[0] 6364d106e041 ("certs: Allow root user to append signed hashes to the blacklist keyring")