A xen security update has been released for Fedora 35.

SECURITY: Fedora 35 Update: xen-4.15.1-5.fc35

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Fedora Update Notification
FEDORA-2022-420bf9fc1e
2022-02-04 01:19:29.204559
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Name : xen
Product : Fedora 35
Version : 4.15.1
Release : 5.fc35
URL :   http://xen.org/
Summary : Xen is a virtual machine monitor
Description :
This package contains the XenD daemon and xm command line
tools, needed to manage virtual machines running under the
Xen hypervisor

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Update Information:

frontends vulnerable to backends [XSA-376] (document change only) arm:
guest_physmap_remove_page not removing the p2m mappings [XSA-393,
CVE-2022-23033] (#2045044) A PV guest could DoS Xen while unmapping a grant
[XSA-394, CVE-2022-23034] (#2045042) Insufficient cleanup of passed-through
device IRQs [XSA-395, CVE-2022-23035] (#2045040)
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ChangeLog:

* Tue Jan 25 2022 Michael Young - 4.15.1-5
- frontends vulnerable to backends [XSA-376] (document change only)
- arm: guest_physmap_remove_page not removing the p2m mappings [XSA-393,
CVE-2022-23033] (#2045044)
- A PV guest could DoS Xen while unmapping a grant [XSA-394, CVE-2022-23034]
(#2045042)
- Insufficient cleanup of passed-through device IRQs [XSA-395,
CVE-2022-23035] (#2045040)
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References:

[ 1 ] Bug #2045039 - CVE-2022-23035 xen: Insufficient cleanup of passed-through device IRQs (XSA-395)
  https://bugzilla.redhat.com/show_bug.cgi?id=2045039
[ 2 ] Bug #2045041 - CVE-2022-23034 xen: A PV guest could DoS Xen while unmapping a grant (XSA-394)
  https://bugzilla.redhat.com/show_bug.cgi?id=2045041
[ 3 ] Bug #2045043 - CVE-2022-23033 xen: arm: guest_physmap_remove_page not removing the p2m mappings (XSA-393)
  https://bugzilla.redhat.com/show_bug.cgi?id=2045043
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2022-420bf9fc1e' at the command
line. For more information, refer to the dnf documentation available at
  http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
  https://fedoraproject.org/keys
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