linux-hardening - Re: [PATCH] cap_syslog: remove CAP_SYS_ADMIN when dmesg

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Message-ID: <4660f3ea.625f.18d0ab83c58.Coremail.mengjingzi@iie.ac.cn>
Date: Mon, 15 Jan 2024 09:24:22 +0800 (GMT+08:00)
From: 孟敬姿 <mengjingzi@....ac.cn>
To: "Kees Cook" <keescook@...omium.org>
Cc: gregkh@...uxfoundation.org, gpiccoli@...lia.com, 
	john.ogness@...utronix.de, linux-hardening@...r.kernel.org, 
	linux-kernel@...r.kernel.org, pmladek@...e.com, rostedt@...dmis.org, 
	senozhatsky@...omium.org, tony.luck@...el.com
Subject: Re: [PATCH] cap_syslog: remove CAP_SYS_ADMIN when dmesg_restrict

I tested on ubuntu 22.04.3 LTS kernel 6.2.16 and Fedora 39 kernel 6.6.11,
the warning is gone, and CAP_SYS_ADMIN is no longer authorized to bypass 
check_syslog_permissions().

Best regards,
Jingzi