Re: [Xen-devel] [PATCH] x86/p2m-pt: fix (latent) page table mapping leak on do_recalc() error paths

[Jürgen Groß <jgross@xxxxxxxx>]

On 25.11.19 15:39, George Dunlap wrote:
> On 11/25/19 1:49 PM, Jan Beulich wrote:
> > There are two mappings active in the middle of do_recalc(), and hence
> > commit 0d0f4d78e5d1 ("p2m: change write_p2m_entry to return an error
> > code") should have added (or otherwise invoked) unmapping code just
> > like it did in p2m_next_level(), despite us not expecting any errors
> > here. Arrange for the existing unmap invocation to take effect in all
> > cases.
> >
> > Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
> Reviewed-by: George Dunlap <george.dunlap@xxxxxxxxxx>
Release-acked-by: Juergen Gross <jgross@xxxxxxxx>


Juergen

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