linux-kernel - Re: [PATCH 0/3] x86/entry/64: Fixes for syscall rework

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Message-ID: <20160131214626.GF22584@pd.tnic>
Date:	Sun, 31 Jan 2016 22:46:26 +0100
From:	Borislav Petkov <bp@...en8.de>
To:	Andy Lutomirski <luto@...nel.org>
Cc:	x86@...nel.org, linux-kernel@...r.kernel.org,
	Brian Gerst <brgerst@...il.com>
Subject: Re: [PATCH 0/3] x86/entry/64: Fixes for syscall rework

On Sun, Jan 31, 2016 at 09:33:25AM -0800, Andy Lutomirski wrote:
> I broke iopl(2) with my syscall rework.  Fix it up.  While debugging
> it, I found a bug in my IRQ state handling.  Fix that, too.
> 
> Andy Lutomirski (3):
>   x86/entry/64: Fix an IRQ state error on ptregs-using syscalls
>   x86/entry/64: Fix fast-path syscall return register state
>   x86/syscalls/64: Mark sys_iopl as using ptregs
> 
>  arch/x86/entry/entry_64.S              | 23 ++++++++++++++++-------
>  arch/x86/entry/syscalls/syscall_64.tbl |  2 +-
>  2 files changed, 17 insertions(+), 8 deletions(-)

Looks good so far:

Reported-and-tested-by: Borislav Petkov <bp@...e.de>

We better hammer on those a lot more until the next merge window for
more confidence.

-- 
Regards/Gruss,
    Boris.

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