linux-kernel - Re: [PATCH v4 03/14] arm64: Consider stack randomization for mmap base only when necessary

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Message-ID: <20190603173712.GJ63283@arrakis.emea.arm.com>
Date:   Mon, 3 Jun 2019 18:37:12 +0100
From:   Catalin Marinas <catalin.marinas@....com>
To:     Alexandre Ghiti <alex@...ti.fr>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Christoph Hellwig <hch@....de>,
        Russell King <linux@...linux.org.uk>,
        Will Deacon <will.deacon@....com>,
        Ralf Baechle <ralf@...ux-mips.org>,
        Paul Burton <paul.burton@...s.com>,
        James Hogan <jhogan@...nel.org>,
        Palmer Dabbelt <palmer@...ive.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Luis Chamberlain <mcgrof@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mips@...r.kernel.org, linux-riscv@...ts.infradead.org,
        linux-fsdevel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH v4 03/14] arm64: Consider stack randomization for mmap
 base only when necessary

On Sun, May 26, 2019 at 09:47:35AM -0400, Alexandre Ghiti wrote:
> Do not offset mmap base address because of stack randomization if
> current task does not want randomization.
> Note that x86 already implements this behaviour.
> 
> Signed-off-by: Alexandre Ghiti <alex@...ti.fr>
> Acked-by: Kees Cook <keescook@...omium.org>
> Reviewed-by: Christoph Hellwig <hch@....de>

Acked-by: Catalin Marinas <catalin.marinas@....com>