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Date:   Wed, 16 Jun 2021 08:52:01 +0200
From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     Liu Shixin <liushixin2@huawei.com>
Cc:     Suren Baghdasaryan <surenb@google.com>,
        Vlastimil Babka <vbabka@suse.cz>, stable@vger.kernel.org,
        "Jann Horn," <jannh@google.com>,
        Mikulas Patocka <mpatocka@redhat.com>
Subject: Re: Questions about backports of fixes for "CoW after fork() issue"
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On Wed, Jun 16, 2021 at 02:47:15PM +0800, Liu Shixin wrote:
> Hi, Suren,
> 
> I read the previous discussion about fixing CVE-2020-29374 in stable 4.14 and 4.19 in
> <https://lore.kernel.org/linux-mm/20210401181741.168763-1-surenb@google.com/>
> 
> https://lore.kernel.org/linux-mm/20210401181741.168763-1-surenb@google.com/
> 
> And the results of the discussion is that you backports of 17839856fd58 for 4.14 and
> 
> 4.19 kernels.
> 
> But the bug about dax and strace in the discussion has not been solved, right? I don't
> 
> find a conclusion on this issue, am I missing something? Does this problem still exist in
> 
> the stable 4.14 and 4.19 kernel?

As the code is all there for you, can you just test them and see for
yourself?

thanks,

greg k-h