From: Ricardo Ribalda <ribalda@chromium.org>
To: Philipp Rudo <prudo@redhat.com>,
Eric Biederman <ebiederm@xmission.com>,
Jonathan Corbet <corbet@lwn.net>,
"Guilherme G. Piccoli" <gpiccoli@igalia.com>
Cc: linux-doc@vger.kernel.org,
Sergey Senozhatsky <senozhatsky@chromium.org>,
Steven Rostedt <rostedt@goodmis.org>,
linux-kernel@vger.kernel.org,
"Joel Fernandes (Google)" <joel@joelfernandes.org>,
Ricardo Ribalda <ribalda@chromium.org>,
Ross Zwisler <zwisler@kernel.org>,
kexec@lists.infradead.org
Subject: [PATCH v3 0/3] kexec: Add new parameter to limit the access to kexec
Date: Tue, 20 Dec 2022 23:05:42 +0100 [thread overview]
Message-ID: <20221114-disable-kexec-reset-v3-0-4ef4e929adf6@chromium.org> (raw)
Add two parameter to specify how many times a kexec kernel can be loaded.
These parameter allow hardening the system.
While we are at it, fix a documentation issue and refactor some code.
To: Jonathan Corbet <corbet@lwn.net>
To: Eric Biederman <ebiederm@xmission.com>
Cc: linux-doc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: kexec@lists.infradead.org
Cc: Joel Fernandes (Google) <joel@joelfernandes.org>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ross Zwisler <zwisler@kernel.org>
To: Philipp Rudo <prudo@redhat.com>
To: Guilherme G. Piccoli <gpiccoli@igalia.com>
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
---
Changes in v3:
- s/paramter/parameter/ Thanks Ghilherme!
- s/permited/permitted/ Thanks Joel!
- Link to v2: https://lore.kernel.org/r/20221114-disable-kexec-reset-v2-0-c498313c1bb5@chromium.org
Changes in v2:
- Instead of kexec_reboot_disabled, add two new counters (Thanks Philipp!)
- Link to v1: https://lore.kernel.org/r/20221114-disable-kexec-reset-v1-0-fb51d20cf871@chromium.org
---
Ricardo Ribalda (3):
Documentation: sysctl: Correct kexec_load_disabled
kexec: Factor out kexec_load_permitted
kexec: Introduce parameters load_limit_reboot and load_limit_panic
Documentation/admin-guide/kernel-parameters.txt | 14 ++++
Documentation/admin-guide/sysctl/kernel.rst | 7 +-
include/linux/kexec.h | 3 +-
kernel/kexec.c | 2 +-
kernel/kexec_core.c | 98 ++++++++++++++++++++++++-
kernel/kexec_file.c | 2 +-
6 files changed, 119 insertions(+), 7 deletions(-)
---
base-commit: 479174d402bcf60789106eedc4def3957c060bad
change-id: 20221114-disable-kexec-reset-19b7e117338f
Best regards,
--
Ricardo Ribalda <ribalda@chromium.org>
next reply other threads:[~2022-12-20 22:06 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-20 22:05 Ricardo Ribalda [this message]
2022-12-20 22:05 ` [PATCH v3 1/3] Documentation: sysctl: Correct kexec_load_disabled Ricardo Ribalda
2022-12-20 22:05 ` [PATCH v3 2/3] kexec: Factor out kexec_load_permitted Ricardo Ribalda
2022-12-20 22:05 ` [PATCH v3 3/3] kexec: Introduce parameters load_limit_reboot and load_limit_panic Ricardo Ribalda
2022-12-21 0:22 ` Steven Rostedt
2022-12-21 1:22 ` Ricardo Ribalda
2022-12-21 2:52 ` Steven Rostedt
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