linux-kernel - Re: [PATCH 1/2] x86/arch_prctl: Fix ARCH_REQ_XCOMP

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Message-ID: <C5D433AE-80DD-4EDF-8365-5D628B1FFD7F@intel.com>
Date:   Tue, 9 Nov 2021 04:55:28 +0000
From:   "Bae, Chang Seok" <chang.seok.bae@...el.com>
To:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     "x86@...nel.org" <x86@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        "bp@...en8.de" <bp@...en8.de>,
        "mingo@...hat.com" <mingo@...hat.com>,
        "Zhong, Yang" <yang.zhong@...el.com>,
        "Liu, Jing2" <jing2.liu@...el.com>
Subject: Re: [PATCH 1/2] x86/arch_prctl: Fix ARCH_REQ_XCOMP_PERM

On Nov 8, 2021, at 15:35, Bae, Chang Seok <chang.seok.bae@...el.com> wrote:
> But the code updates the current task's bitmap instead of the group
> leader's. 

This statement is wrong, sorry. The code already writes to the group leader’s.

V2 is here: 
    https://lore.kernel.org/lkml/20211109012122.1142-1-chang.seok.bae@intel.com/

Thanks,
Chang