linux-hardening - Re: [RFC PATCH v2 1/8] mseal: Add mseal(2) syscall.

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

Message-ID: <cba3771f-09bb-4b2b-af13-00dd2f9c4e64@infradead.org>
Date: Tue, 17 Oct 2023 08:45:36 -0700
From: Randy Dunlap <rdunlap@...radead.org>
To: jeffxu@...omium.org, akpm@...ux-foundation.org, keescook@...omium.org,
 jannh@...gle.com, sroettger@...gle.com, willy@...radead.org,
 gregkh@...uxfoundation.org, torvalds@...ux-foundation.org
Cc: jeffxu@...gle.com, jorgelo@...omium.org, groeck@...omium.org,
 linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
 linux-mm@...ck.org, surenb@...gle.com, alex.sierra@....com,
 apopple@...dia.com, aneesh.kumar@...ux.ibm.com, axelrasmussen@...gle.com,
 ben@...adent.org.uk, catalin.marinas@....com, david@...hat.com,
 dwmw@...zon.co.uk, ying.huang@...el.com, hughd@...gle.com,
 joey.gouly@....com, corbet@....net, wangkefeng.wang@...wei.com,
 Liam.Howlett@...cle.com, lstoakes@...il.com, mawupeng1@...wei.com,
 linmiaohe@...wei.com, namit@...are.com, peterx@...hat.com,
 peterz@...radead.org, ryan.roberts@....com, shr@...kernel.io,
 vbabka@...e.cz, xiujianfeng@...wei.com, yu.ma@...el.com,
 zhangpeng362@...wei.com, dave.hansen@...el.com, luto@...nel.org,
 linux-hardening@...r.kernel.org
Subject: Re: [RFC PATCH v2 1/8] mseal: Add mseal(2) syscall.

nit:

On 10/17/23 02:08, jeffxu@...omium.org wrote:

| diff --git a/mm/Kconfig b/mm/Kconfig
| index 264a2df5ecf5..db8a567cb4d3 100644
| --- a/mm/Kconfig
| +++ b/mm/Kconfig
| @@ -1258,6 +1258,14 @@ config LOCK_MM_AND_FIND_VMA
|  	bool
|  	depends on !STACK_GROWSUP
|  
| +config MSEAL
| +	default n
| +	bool "Enable mseal() system call"
| +	depends on MMU
| +	help
| +	  Enable the mseal() system call. Make memory areas's metadata immutable

	                                              areas'

$search_engine is your friend.

| +	  by selected system calls, i.e. mprotect(), munmap(), mremap(), mmap().

-- 
~Randy