VDB
ALPINE-CVE-2022-26362
ALPINE-CVE-2022-26362
PUBLISHED
CVSS 6.400000095367432 MEDIUM
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.
Risk Scores
CVSS 3.1
6.400000095367432
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.16 | xen | 4.11.1-r0, 4.12.0-r0, 4.12.0-r1 |
| Alpine:v3.17 | xen | 4.1.1-r2, 4.1.2-r10, 4.1.2-r12 |
| Alpine:v3.22 | xen | 4.7.0-r3, 0, 0 |
| Alpine:v3.19 | xen | 4.0.1-r0, 4.0.1-r2, 4.0.1-r3 |
| Alpine:v3.21 | xen | 4.3.2-r2, 4.3.2-r3, 4.3.2-r4 |
| Alpine:v3.15 | xen | 4.1.1-r0, 4.1.0-r1, 4.1.0-r0 |
| Alpine:v3.24 | xen | 0, 0 |
| Alpine:v3.23 | xen | 4.1.1-r1, 0, 4.1.1-r0 |
| Alpine:v3.14 | xen | 4.7.2-r0, 4.8.1-r0, 4.8.1-r1 |
| Alpine:v3.20 | xen | 4.6.0-r2, 0, 0 |
| Alpine:v3.18 | xen | 4.6.1-r0, 4.1.2-r10, 4.1.2-r11 |
| Alpine:v3.13 | xen | 0, 4.0.1-r1, 4.0.1-r2 |
Timeline
- Jun 9, 2022 CVE Published
- Jun 15, 2026 CVE Updated
- Aug 8, 2026 Distribution Patch