xen/netfront: fix leaking data in shared pages
When allocating pages to be used for shared communication with the backend always zero them, this avoids leaking unintended data present on the pages. This is CVE-2022-33740, part of XSA-403. Signed-off-by:Roger Pau Monné <roger.pau@citrix.com> Reviewed-by:
Jan Beulich <jbeulich@suse.com> Reviewed-by:
Juergen Gross <jgross@suse.com> Signed-off-by:
Juergen Gross <jgross@suse.com>
parent
2f446ffe
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