Re: Questions about backports of fixes for "CoW after fork() issue"

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On Tue, Jun 15, 2021 at 11:52 PM Greg Kroah-Hartman
<gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
>
> 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@xxxxxxxxxx/>
> >
> > https://lore.kernel.org/linux-mm/20210401181741.168763-1-surenb@xxxxxxxxxx/
> >
> > 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?

That is my understanding after discussions with Andrea but I did not
verify that myself. As Greg pointed out, the best way would be to try
it out.
Thanks,
Suren.

>
> As the code is all there for you, can you just test them and see for
> yourself?
>
> thanks,
>
> greg k-h



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