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Date: Wed, 21 Feb 2018 17:35:24 -0800
From: Laura Abbott <>
To: Mark Rutland <>
Cc: Alexander Popov <>, Kees Cook
 <>, Ard Biesheuvel <>,,,
Subject: Re: [PATCH 2/2] arm64: Clear the stack

On 02/21/2018 03:53 PM, Laura Abbott wrote:
>> I *think* this should happen in finish_ret_to_user a few lines down, since we
>> can call C code if we branch to work_pending, dirtying the stack.
> I think you're right but this didn't immediately work when I tried it.
> I'll have to dig into this some more.

Okay I figured this out. Not corrupting registers works wonders.

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