VDB
ALPINE-CVE-2022-26356
ALPINE-CVE-2022-26356
PUBLISHED
CVSS 5.599999904632568 MEDIUM
Racy interactions between dirty vram tracking and paging log dirty hypercalls Activation of log dirty mode done by XEN_DMOP_track_dirty_vram (was named HVMOP_track_dirty_vram before Xen 4.9) is racy with ongoing log dirty hypercalls. A suitably timed call to XEN_DMOP_track_dirty_vram can enable log dirty while another CPU is still in the process of tearing down the structures related to a previously enabled log dirty mode (XEN_DOMCTL_SHADOW_OP_OFF). This is due to lack of mutually exclusive locking between both operations and can lead to entries being added in already freed slots, resulting in a memory leak.
Risk Scores
CVSS 3.1
5.599999904632568
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.19 | xen | 0, 4.0.1-r0, 4.0.1-r1 |
| Alpine:v3.21 | xen | 0, 4.0.0, 4.9.1-r3 |
| Alpine:v3.17 | xen | 4.10.1-r0, 0, 4.0.1-r0 |
| Alpine:v3.16 | xen | 4.7.0-r5, 4.0.0, 4.9.1-r3 |
| Alpine:v3.23 | xen | 4.0.0, 0, 4.0.1-r1 |
| Alpine:v3.22 | xen | 4.10.0-r1, 4.6.0-r5, 0 |
| Alpine:v3.14 | xen | 4.7.1-r2, 4.0.0, 4.9.1-r3 |
| Alpine:v3.15 | xen | 4.2.0-r2, 4.15.0-r0, 4.15.2-r0 |
| Alpine:v3.18 | xen | 4.1.1-r1, 4.0.0, 4.9.1-r3 |
| Alpine:v3.24 | xen | 4.0.0 |
| Alpine:v3.20 | xen | 4.0.0, 4.6.3-r1, 4.7.0-r0 |
| Alpine:v3.13 | xen | 4.6.3-r0, 4.9.0-r0, 4.8.1-r4 |
| Alpine:v3.12 | xen | 0, 4.0.1-r3, 4.1.0-r0 |
Timeline
- Apr 5, 2022 CVE Published
- Apr 30, 2026 Distribution Patch
- Jul 8, 2026 CVE Updated