linux-kernel - Re: [PATCH] x86/asm/memcpy_mcsafe: Fix copy_to_user

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Message-ID: <20180703083040.GB971@gmail.com>
Date:   Tue, 3 Jul 2018 10:30:40 +0200
From:   Ingo Molnar <mingo@...nel.org>
To:     Dan Williams <dan.j.williams@...el.com>,
        Al Viro <viro@...iv.linux.org.uk>
Cc:     Al Viro <viro@...iv.linux.org.uk>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Andy Lutomirski <luto@...capital.net>,
        Borislav Petkov <bp@...en8.de>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Tony Luck <tony.luck@...el.com>,
        Ross Zwisler <ross.zwisler@...ux.intel.com>,
        linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        x86@...nel.org
Subject: Re: [PATCH] x86/asm/memcpy_mcsafe: Fix copy_to_user_mcsafe()
 exception handling


* Dan Williams <dan.j.williams@...el.com> wrote:

> Hi Ingo,
> 
> Here is an additional copy_to_iter_mcsafe() fix to address the crash
> reported by Ross. This now passes xfstests:generic/323 on my system.

The lib/iov_iter fix would need an Acked-by from Al.

Thanks,

	Ingo