main/xen: fix various security issues

For #11400

Fixed CVEs:

- CVE-2020-11739
- CVE-2020-11740
- CVE-2020-11741
- CVE-2020-11742
- CVE-2020-11743
7 jobs for !6999 with 3.8-xen in 6 minutes and 7 seconds
detached
Status Job ID Name Coverage
  Lint
passed #97054
x86_64 docker-alpine
lint

00:01:21

 
  Build
passed #97059
aarch64 ci-build docker-alpine
build-aarch64

00:02:05

passed #97060
armv7 ci-build docker-alpine
build-armv7

00:02:13

passed #97058
ppc64le ci-build docker-alpine
build-ppc64le

00:04:42

failed #97057
s390x ci-build docker-alpine
build-s390x

00:00:21

passed #97056
x86 ci-build docker-alpine
build-x86

00:01:04

passed #97055
x86_64 ci-build docker-alpine
build-x86_64

00:01:06

 
Name Stage Failure
failed
build-s390x Build
No job log