linux-kernel - Re: [PATCH RFC RFT v2 2/5] fork: Add shadow stack support to clone3()

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] [day] [month] [year] [list]

Message-ID: <0f7747d2-f2ee-4e3e-be70-231673365339@sirena.org.uk>
Date:   Mon, 20 Nov 2023 16:11:05 +0000
From:   Mark Brown <broonie@...nel.org>
To:     "Edgecombe, Rick P" <rick.p.edgecombe@...el.com>
Cc:     "dietmar.eggemann@....com" <dietmar.eggemann@....com>,
        "keescook@...omium.org" <keescook@...omium.org>,
        "shuah@...nel.org" <shuah@...nel.org>,
        "Szabolcs.Nagy@....com" <Szabolcs.Nagy@....com>,
        "linux-api@...r.kernel.org" <linux-api@...r.kernel.org>,
        "debug@...osinc.com" <debug@...osinc.com>,
        "mgorman@...e.de" <mgorman@...e.de>,
        "dave.hansen@...ux.intel.com" <dave.hansen@...ux.intel.com>,
        "fweimer@...hat.com" <fweimer@...hat.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "mingo@...hat.com" <mingo@...hat.com>,
        "hjl.tools@...il.com" <hjl.tools@...il.com>,
        "rostedt@...dmis.org" <rostedt@...dmis.org>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "vschneid@...hat.com" <vschneid@...hat.com>,
        "brauner@...nel.org" <brauner@...nel.org>,
        "vincent.guittot@...aro.org" <vincent.guittot@...aro.org>,
        "bristot@...hat.com" <bristot@...hat.com>,
        "will@...nel.org" <will@...nel.org>,
        "catalin.marinas@....com" <catalin.marinas@....com>,
        "peterz@...radead.org" <peterz@...radead.org>,
        "hpa@...or.com" <hpa@...or.com>,
        "jannh@...gle.com" <jannh@...gle.com>,
        "bp@...en8.de" <bp@...en8.de>,
        "bsegall@...gle.com" <bsegall@...gle.com>,
        "linux-kselftest@...r.kernel.org" <linux-kselftest@...r.kernel.org>,
        "Pandey, Sunil K" <sunil.k.pandey@...el.com>,
        "x86@...nel.org" <x86@...nel.org>,
        "juri.lelli@...hat.com" <juri.lelli@...hat.com>
Subject: Re: [PATCH RFC RFT v2 2/5] fork: Add shadow stack support to clone3()

On Fri, Nov 17, 2023 at 05:43:26PM +0000, Edgecombe, Rick P wrote:

> Either of those seem fine to me, but it would be nice to get it vetted
> by the libc folks before committing. I'd maybe lean towards the one you
> suggested without the new flag.

I'll go with just taking the stack size as a parameter then, less
validation, hopefully the userspace people will be OK with that - I
agree it'd be best to get their buy in.

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