UpHeron
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Servers and applications

CVE-2022-23034

A PV guest could DoS Xen while unmapping a grant To address XSA-380, reference counting was introduced for grant mappings for the case where a PV guest would have the IOMMU enabled. PV guests can request two forms of mappings. When both are in use for any individual mapping, unmapping of such a mapping can be requested in two steps. The reference count for such a mapping would then mistakenly be…

Severity
Medium 5.5
Published
25 Jan 2022
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
4.13.0
Sources
NVD

Affected software

SoftwareAffected versions
XenServers and applications · cpe:o:xen:xen
  • From 3.2.0 before 4.13.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2022-23034
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2022-23034