linux-kernel - Re: [PATCH v4] ima: silence measurement list hexdump during kexec

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Date:   Wed, 05 Jan 2022 08:35:40 -0500
From:   Mimi Zohar <zohar@...ux.ibm.com>
To:     Bruno Meneguele <bmeneg@...hat.com>
Cc:     linux-integrity@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4] ima: silence measurement list hexdump during kexec

On Tue, 2021-12-28 at 23:03 -0300, Bruno Meneguele wrote:
> Direclty calling print_hex_dump() dumps the IMA measurement list on soft

^Directly

> resets (kexec) straight to the syslog (kmsg/dmesg) without considering the
> DEBUG flag or the dynamic debug state, causing the output to be always
> printed, including during boot time.
> 
> Since this output is only valid for IMA debugging, but not necessary on
> normal kexec operation, print_hex_dump_debug() adheres to the pr_debug()
> behavior: the dump is only printed to syslog when DEBUG is defined or when
> explicitly requested by the user through dynamic debugging.
> 
> Signed-off-by: Bruno Meneguele <bmeneg@...hat.com>

Thanks, Bruno.  This patch is now queued in #next-integrity-testing.

Mimi