[4.14.35-2047.500.9.1] - xen-blkback: fix error handling in xen_blkbk_map [Orabug: 32492110] {CVE-2021-26930} - xen-scsiback: dont "handle" error by BUG [Orabug: 32492102] {CVE-2021-26931} - xen-netback: dont "handle" error by BUG [Orabug: 32492102] {CVE-2021-26931} - xen-blkback: dont "handle" error by BUG [Orabug: 32492102] {CVE-2021-26931} - Xen/gntdev: correct error checking in gntdev_map_ ...