linux-kernel - Re: Shadow stack enabling from dynamic loader v/s kernel on exec

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Message-ID: <ZWZNothlvzQKStOc@debug.ba.rivosinc.com>
Date:   Tue, 28 Nov 2023 12:29:22 -0800
From:   Deepak Gupta <debug@...osinc.com>
To:     Mark Brown <broonie@...nel.org>
Cc:     "Edgecombe, Rick P" <rick.p.edgecombe@...el.com>,
        "keescook@...omium.org" <keescook@...omium.org>,
        "szabolcs.nagy@....com" <szabolcs.nagy@....com>,
        "hjl.tools@...il.com" <hjl.tools@...il.com>,
        "kito.cheng@...ive.com" <kito.cheng@...ive.com>,
        "libc-alpha@...rceware.org" <libc-alpha@...rceware.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: Shadow stack enabling from dynamic loader v/s kernel on exec

On Tue, Nov 28, 2023 at 12:51:44PM +0000, Mark Brown wrote:
>On Mon, Nov 27, 2023 at 05:41:16PM +0000, Edgecombe, Rick P wrote:
>> On Wed, 2023-11-22 at 16:19 -0800, Deepak Gupta wrote:
>
>> Thanks. As we look at adding some final glibc support, I've wondered if
>> there might be enough topics to warrant an occasional meeting to
>> discuss stuff like this. I'd also like to discuss the shadow stack life
>> cycle issues (uncontext, etc), alt shadow stacks and all of the
>> compatibility last mile problems. Towards the goal of avoiding
>> unnecessary divergence on app developer expectations.
>
>It'd definitely be good to ensure we're coordinating well, I'd be
>willing to give it a go.

Same here.