ALPINE-CVE-2022-26362
- Source
- https://security.alpinelinux.org/vuln/CVE-2022-26362
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2022-26362.json
- JSON Data
- https://api.osv.dev/v1/vulns/ALPINE-CVE-2022-26362
- Upstream
- Published
- 2022-06-09T17:15:08Z
- Modified
- 2026-08-27T22:18:01Z
- Severity
-
- 6.4 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
x86 pv: Race condition in typeref acquisition Xen maintains a type reference count for pages, in addition to a regular reference count. This scheme is used to maintain invariants required for Xen's safety, e.g. PV guests may not have direct writeable access to pagetables; updates need auditing by Xen. Unfortunately, the logic for acquiring a type reference has a race condition, whereby a safely TLB flush is issued too early and creates a window where the guest can re-establish the read/write mapping before writeability is prohibited.
- References