Security update for xen (important)

An update that solves 5 vulnerabilities and has 7 fixes is
now available.

Description:

This update for xen fixes the following issues:

Security issues fixed:

• CVE-2020-11742: Bad continuation handling in GNTTABOP_copy (bsc#1169392).
• CVE-2020-11740, CVE-2020-11741: xen: XSA-313 multiple xenoprof issues
  (bsc#1168140).
• CVE-2020-11739: Missing memory barriers in read-write unlock paths
  (bsc#1168142).
• CVE-2020-11743: Bad error path in GNTTABOP_map_grant (bsc#1168143).
• arm: a CPU may speculate past the ERET instruction (bsc#1160932).

Non-security issues fixed:

• Xenstored Crashed during VM install (bsc#1167152)
• DomU hang: soft lockup CPU #0 stuck under high load (bsc#1165206,
  bsc#1134506)
• Update API compatibility versions, fixes issues for libvirt.
  (bsc#1167007, bsc#1157490)
• aacraid blocks xen commands (bsc#1155200)

This update was imported from the SUSE:SLE-15-SP1:Update update project.

Patch Instructions:

To install this openSUSE Security Update use the SUSE recommended installation methods
like YaST online_update or “zypper patch”.

Alternatively you can run the command listed for your product:

• openSUSE Leap 15.1:

  zypper in -t patch openSUSE-2020-599=1