Re: [PATCH v4.4] x86/uaccess: Don't leak the AC flag into __put_user() value evaluation

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Subject: Re: [PATCH v4.4] x86/uaccess: Don't leak the AC flag into __put_user() value evaluation
From: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Date: Sun, 3 Mar 2019 18:57:26 +0100
Cc: Nathan Chancellor <natechancellor@xxxxxxxxx>, Maxim Zhukov <mussitantesmortem@xxxxxxxxx>, Andy Lutomirski <luto@xxxxxxxxxx>, Borislav Petkov <bp@xxxxxxx>, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Brian Gerst <brgerst@xxxxxxxxx>, Josh Poimboeuf <jpoimboe@xxxxxxxxxx>, Denys Vlasenko <dvlasenk@xxxxxxxxxx>, stable@xxxxxxxxxxxxxxx
In-reply-to: <CAFqsdWn2a4Q5kpmoei2WMix-cjVXuaciKQQYZJKmoNRhD9TSrA@mail.gmail.com>
User-agent: Mutt/1.11.3 (2019-02-01)

On Sun, Mar 03, 2019 at 08:28:01PM +0300, Maxim Zhukov wrote:
> Whoops, this patch generated on old tree, sorry. I regenerate patch from
> new 4.4 tree. And test for all kernels (its work). Resend one patch for all
> stable branches?

If that is what works and is needed, yes.

References:
- [PATCH v4.4] x86/uaccess: Don't leak the AC flag into __put_user() value evaluation
  - From: Maxim Zhukov
- Re: [PATCH v4.4] x86/uaccess: Don't leak the AC flag into __put_user() value evaluation
  - From: Nathan Chancellor

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