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



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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