linux-kernel - Re: [PATCH] fs/binfmt_elf.c: allocate initialized memory in fill_thread_core

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Message-ID: <20200527190456.GD1721@zn.tnic>
Date:   Wed, 27 May 2020 21:04:56 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Al Viro <viro@...iv.linux.org.uk>
Cc:     Alexander Potapenko <glider@...gle.com>,
        Kees Cook <keescook@...omium.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Alexey Dobriyan <adobriyan@...il.com>,
        LKML <linux-kernel@...r.kernel.org>, sunhaoyl@...look.com,
        x86@...nel.org
Subject: Re: [PATCH] fs/binfmt_elf.c: allocate initialized memory in
 fill_thread_core_info()

On Tue, May 26, 2020 at 11:38:17PM +0100, Al Viro wrote:
> Folks, could you test the following?
> 
> copy_xstate_to_kernel(): don't leave parts of destination uninitialized
> 
> copy the corresponding pieces of init_fpstate into the gaps instead.
> 
> Signed-off-by: Al Viro <viro@...iv.linux.org.uk>

Am I taking this through tip (would prefer to as there's other FPU stuff
pending) or should I ack this so that you can send it upwards?

Thx.

-- 
Regards/Gruss,
    Boris.

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