ALPINE-CVE-2026-42492
- Source
- https://security.alpinelinux.org/vuln/CVE-2026-42492
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-42492.json
- JSON Data
- https://api.osv.dev/v1/vulns/ALPINE-CVE-2026-42492
- Upstream
- Published
- 2026-07-28T13:18:32.123Z
- Modified
- 2026-08-27T22:18:03.545113605Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
Xenstore, to have an up-to-date picture of the entire system, wants to know of domains appearing and disappearing. To make this more robust, a new XENDOMCTLgetdomainstate was introduced. The management of the bitmap underlying that operation is tied into the binding of the VIRQDOMEXC virtual IRQ. Unfortunately an error path there would tear down the bitmap even in cases when it wasn't set up. Unprivileged domains can trigger that error path.
- References