Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings
Published Jul 5, 2022
4.7
MEDIUMCVSS 3.1
EPSS 0.31%
Description
Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged guests via PV devices to cause inconsistencies of the rbtree. These inconsistencies can lead to Denial of Service (DoS) of dom0, e.g. by causing crashes or the inability to perform further mappings of other guests' memory pages.
Affected products
No data.
Configuration 1
- ≥ 3.13 · ≤ 5.18
Configuration 2
- 10.0
- 11.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
AV:L/AC:M/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.31% (0.00313) | 21.85th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.30% (0.00299) | 21.30th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.02% (0.00019) | 2.92th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00045) | 16.02th | v3 (v2023.03.01) |
| Jul 10, 2024 | 0.04% (0.00045) | 14.44th | v3 (v2023.03.01) |
| Oct 10, 2023 | 0.04% (0.00045) | 12.43th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00950) | 32.28th | v2 (v2022.01.01) |
| Feb 23, 2023 | 0.95% (0.00950) | 32.19th | v2 (v2022.01.01) |
| Jul 28, 2022 | 0.95% (0.00950) | 30.16th | v2 (v2022.01.01) |
| Jul 6, 2022 | 0.89% (0.00890) | 27.84th | v2 (v2022.01.01) |
No CWE recorded.
References (5)
- http://www.openwall.com/lists/oss-security/2022/07/05/4 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://xenbits.xen.org/xsa/advisory-406.html x_refsource_CONFIRMPatchVendor Advisory
- https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://www.debian.org/security/2022/dsa-5191 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- https://xenbits.xenproject.org/xsa/advisory-406.txt x_refsource_MISCVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2022/07/05/4 | mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory | |
| http://xenbits.xen.org/xsa/advisory-406.html | x_refsource_CONFIRMPatchVendor Advisory | |
| https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://www.debian.org/security/2022/dsa-5191 | vendor-advisoryx_refsource_DEBIANThird Party Advisory | |
| https://xenbits.xenproject.org/xsa/advisory-406.txt | x_refsource_MISCVendor Advisory |
Change history (0)
No recorded changes yet.