linux-kernel - Re: [PATCH v4 03/12] mm: Reserve asm-generic prot flag 0x10 for arch use

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]

Date:   Thu, 12 Dec 2019 16:16:38 +0000
From:   Mark Brown <broonie@...nel.org>
To:     Catalin Marinas <catalin.marinas@....com>
Cc:     Will Deacon <will@...nel.org>, Paul Elliott <paul.elliott@....com>,
        Peter Zijlstra <peterz@...radead.org>,
        Yu-cheng Yu <yu-cheng.yu@...el.com>,
        Amit Kachhap <amit.kachhap@....com>,
        Vincenzo Frascino <vincenzo.frascino@....com>,
        Marc Zyngier <maz@...nel.org>,
        Eugene Syromiatnikov <esyr@...hat.com>,
        Szabolcs Nagy <szabolcs.nagy@....com>,
        "H.J. Lu" <hjl.tools@...il.com>, Andrew Jones <drjones@...hat.com>,
        Kees Cook <keescook@...omium.org>,
        Arnd Bergmann <arnd@...db.de>, Jann Horn <jannh@...gle.com>,
        Richard Henderson <richard.henderson@...aro.org>,
        Kristina Martšenko <kristina.martsenko@....com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Florian Weimer <fweimer@...hat.com>,
        Sudakshina Das <sudi.das@....com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-arch@...r.kernel.org, Dave Martin <Dave.Martin@....com>
Subject: Re: [PATCH v4 03/12] mm: Reserve asm-generic prot flag 0x10 for arch
 use

On Thu, Dec 12, 2019 at 10:48:32AM +0000, Catalin Marinas wrote:
> On Wed, Dec 11, 2019 at 03:41:57PM +0000, Mark Brown wrote:

> >  #define PROT_GROWSDOWN	0x01000000	/* mprotect flag: extend change to start of growsdown vma */
> >  #define PROT_GROWSUP	0x02000000	/* mprotect flag: extend change to end of growsup vma */

> Since the BTI will likely be merged before the MTE series, please
> consider reserving 0x20 as well. The updated patch, acked by Arnd:

Sure.

Download attachment "signature.asc" of type "application/pgp-signature" (489 bytes)