linux-kernel - Re: [PATCH v2] ima_fs: Avoid creating measurement lists for unsupported hash algos

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] [day] [month] [year] [list]

Message-ID: <CAGrbwDQWo8Eebtu4FHsahtJTOkw4jXgncm4paFY6uyU_GkqVtQ@mail.gmail.com>
Date: Tue, 27 Jan 2026 14:30:46 +0000
From: Dmitry Safonov <dima@...sta.com>
To: Roberto Sassu <roberto.sassu@...weicloud.com>
Cc: Mimi Zohar <zohar@...ux.ibm.com>, Roberto Sassu <roberto.sassu@...wei.com>, 
	Dmitry Kasatkin <dmitry.kasatkin@...il.com>, Eric Snowberg <eric.snowberg@...cle.com>, 
	Paul Moore <paul@...l-moore.com>, James Morris <jmorris@...ei.org>, 
	"Serge E. Hallyn" <serge@...lyn.com>, Silvia Sisinni <silvia.sisinni@...ito.it>, 
	Enrico Bravi <enrico.bravi@...ito.it>, linux-integrity@...r.kernel.org, 
	linux-security-module@...r.kernel.org, linux-kernel@...r.kernel.org, 
	stable@...r.kernel.org, Dmitry Safonov <0x7f454c46@...il.com>
Subject: Re: [PATCH v2] ima_fs: Avoid creating measurement lists for
 unsupported hash algos

On Tue, Jan 27, 2026 at 2:28 PM Roberto Sassu
<roberto.sassu@...weicloud.com> wrote:
>
> On Tue, 2026-01-27 at 14:18 +0000, Dmitry Safonov via B4 Relay wrote:
[..]
> >       /* 2nd: template hash */
> > -     ima_print_digest(m, e->digests[algo_idx].digest, hash_digest_size[algo]);
> > +     if (algo == HASH_ALGO__LAST)
> > +             ima_putc(m, "0", 1);
> > +     else
> > +             ima_print_digest(m, e->digests[algo_idx].digest, hash_digest_size[algo]);
>
> No need, the last one is ok with ima_tpm_chip->allocated_banks[algo_idx].digest_size.

Cool, let me check it and I'll update it in v4.

Thanks,
           Dmitry