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(parent: b3fc5ae) | patch
xen/netfront: fix leaking data in shared pages
authorRoger Pau Monne <roger.pau@citrix.com>
Wed, 6 Apr 2022 15:38:04 +0000 (17:38 +0200)
committerJuergen Gross <jgross@suse.com>
Fri, 1 Jul 2022 08:00:14 +0000 (10:00 +0200)
commita34431598e051e119d74a3f1c83f783c61b3ac5d
tree528e53d9d27eea583793dd2a9c7e7057c3e8ebd7tree | snapshot
parentb3fc5ae6acb31a55dd5bc4533304802ce1b7c2f1commit | diff
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>
drivers/net/xen-netfront.c diff | blob | history
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