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(parent: 6019102) | patch
xen/blkfront: fix leaking data in shared pages
authorRoger Pau Monne <roger.pau@citrix.com>
Fri, 1 Jul 2022 06:23:54 +0000 (08:23 +0200)
committerJuergen Gross <jgross@suse.com>
Fri, 1 Jul 2022 06:23:54 +0000 (08:23 +0200)
commitb3fc5ae6acb31a55dd5bc4533304802ce1b7c2f1
tree0607aec81ba0807181d8101a5ed135ad344c90e4tree | snapshot
parent6019102849d9dab7bf33c75972d260c8f2e49723commit | diff
xen/blkfront: 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-2022-26365, 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/block/xen-blkfront.c diff | blob | history
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