CVE-2022-23034
- State
- Published
- Severity
- Not scored
- Published
- Jan 25, 2022
- Updated
- Aug 3, 2024
- Reserved
- Jan 10, 2022
Description
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 decremented twice. Underflow of the counters gets detected, resulting in the triggering of a hypervisor bug check.
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
xenXen |
|
References
- https://xenbits.xenproject.org/xsa/advisory-394.txt
- [oss-security] 20220125 Xen Security Advisory 394 v3 (CVE-2022-23034) - A PV guest could DoS Xen while unmapping a grantmailing-list
- FEDORA-2022-0cc3916e08vendor-advisory
- DSA-5117vendor-advisory
- GLSA-202208-23vendor-advisory
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