linux-kernel - Re: [PATCH] x86/ldt: correct ldt access in single stepping logic

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Message-ID: <CALCETrVKBC6j-kaN4A2jO7y+oGE2+LHTLHkgFqWhQsuEZdsFrA@mail.gmail.com>
Date:	Thu, 6 Aug 2015 11:37:07 -0700
From:	Andy Lutomirski <luto@...capital.net>
To:	Juergen Gross <jgross@...e.com>
Cc:	Andrew Lutomirski <luto@...nel.org>, Borislav Petkov <bp@...e.de>,
	X86 ML <x86@...nel.org>, "H. Peter Anvin" <hpa@...or.com>,
	Ingo Molnar <mingo@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	stable <stable@...r.kernel.org>
Subject: Re: [PATCH] x86/ldt: correct ldt access in single stepping logic

On Thu, Aug 6, 2015 at 1:04 AM, Juergen Gross <jgross@...e.com> wrote:
> Commit 37868fe113ff ("x86/ldt: Make modify_ldt synchronous") introduced
> a new struct ldt_struct anchored at mm->context.ldt.
>
> convert_ip_to_linear() was changed to reflect this, but indexing into
> the ldt has to be changed as the pointer is no longer void *.

Good catch.

Reviewed-by: Andy Lutomirski <luto@...nel.org>
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