CVE-2022-26363
Fixed in a distro release EPSS <1%
x86 pv: Insufficient care with non-coherent mappings T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] 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, Xen's safety logic doesn't account for CPU-induced cache non-coherency; cases where the CPU can cause the content of the cache to be different to the content in main memory. In such cases, Xen's safety logic can incorrectly conclude that the contents of a page is safe.
Products: xen
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Alpine 3.13 | xen | 4.14.5-r1 |
| Alpine 3.14 | xen | 4.15.2-r1 |
| Alpine 3.15 | xen | 4.15.2-r1 |
| Alpine 3.16 | xen | 4.16.1-r1 |
| Alpine 3.17 | xen | 4.16.1-r2 |
| Alpine 3.18 | xen | 4.16.1-r2 |
| Alpine 3.19 | xen | 4.16.1-r2 |
| Alpine 3.20 | xen | 4.16.1-r2 |
| Alpine 3.21 | xen | 4.16.1-r2 |
| Alpine 3.22 | xen | 4.16.1-r2 |
| Alpine 3.23 | xen | 4.16.1-r2 |
| Alpine 3.24 | xen | 4.16.1-r2 |
| Debian 11 | xen | 4.14.5+24-g87d90d511c-1 |
| Debian 12 | xen | 4.16.2-1 |
| Debian 13 | xen | 4.16.2-1 |
| Debian 14 | xen | 4.16.2-1 |
| SUSE Enterprise Storage 6 | xen | 4.12.4_24-150100.3.72.1 |
| SUSE Enterprise Storage 6 | xen | 4.12.4_26-150100.3.75.1 |
| SUSE Enterprise Storage 7 | xen | 4.13.4_12-150200.3.58.1 |
| SUSE Enterprise Storage 7 | xen | 4.13.4_10-150200.3.55.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | xen | 4.12.4_26-150100.3.75.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | xen | 4.12.4_24-150100.3.72.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | xen | 4.12.4_26-150100.3.75.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | xen | 4.12.4_24-150100.3.72.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | xen | 4.13.4_10-150200.3.55.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | xen | 4.13.4_12-150200.3.58.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | xen | 4.13.4_10-150200.3.55.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | xen | 4.13.4_12-150200.3.58.1 |
| SUSE Linux Enterprise High Performance Computing 15-ESPOS | xen | 4.10.4_36-150000.3.77.1 |
| SUSE Linux Enterprise High Performance Computing 15-LTSS | xen | 4.10.4_36-150000.3.77.1 |
| SUSE Linux Enterprise Micro 5.1 | xen | 4.14.5_04-150300.3.32.1 |
| SUSE Linux Enterprise Micro 5.1 | xen | 4.14.5_02-150300.3.29.1 |
| SUSE Linux Enterprise Micro 5.2 | xen | 4.14.5_04-150300.3.32.1 |
| SUSE Linux Enterprise Micro 5.2 | xen | 4.14.5_02-150300.3.29.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP3 | xen | 4.14.5_04-150300.3.32.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP3 | xen | 4.14.5_02-150300.3.29.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP4 | xen | 4.16.1_06-150400.4.8.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP4 | xen | 4.16.1_04-150400.4.5.2 |
| SUSE Linux Enterprise Module for Server Applications 15 SP3 | xen | 4.14.5_04-150300.3.32.1 |
| SUSE Linux Enterprise Module for Server Applications 15 SP3 | xen | 4.14.5_02-150300.3.29.1 |
| SUSE Linux Enterprise Module for Server Applications 15 SP4 | xen | 4.16.1_04-150400.4.5.2 |
| SUSE Linux Enterprise Module for Server Applications 15 SP4 | xen | 4.16.1_06-150400.4.8.1 |
| SUSE Linux Enterprise Server 12 SP2-BCL | xen | 4.7.6_24-43.91.1 |
| SUSE Linux Enterprise Server 12 SP3-BCL | xen | 4.9.4_30-3.106.1 |
| SUSE Linux Enterprise Server 12 SP4-LTSS | xen | 4.11.4_30-2.76.1 |
| SUSE Linux Enterprise Server 12 SP5 | xen | 4.12.4_24-3.71.1 |
| SUSE Linux Enterprise Server 15 SP1-BCL | xen | 4.12.4_24-150100.3.72.1 |
| SUSE Linux Enterprise Server 15 SP1-BCL | xen | 4.12.4_26-150100.3.75.1 |
| SUSE Linux Enterprise Server 15 SP1-LTSS | xen | 4.12.4_24-150100.3.72.1 |
| SUSE Linux Enterprise Server 15 SP1-LTSS | xen | 4.12.4_26-150100.3.75.1 |
| SUSE Linux Enterprise Server 15 SP2-BCL | xen | 4.13.4_10-150200.3.55.1 |
| SUSE Linux Enterprise Server 15 SP2-BCL | xen | 4.13.4_12-150200.3.58.1 |
| SUSE Linux Enterprise Server 15 SP2-LTSS | xen | 4.13.4_12-150200.3.58.1 |
| SUSE Linux Enterprise Server 15 SP2-LTSS | xen | 4.13.4_10-150200.3.55.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | xen | 4.11.4_30-2.76.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | xen | 4.12.4_24-3.71.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 | xen | 4.10.4_36-150000.3.77.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | xen | 4.12.4_26-150100.3.75.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | xen | 4.12.4_24-150100.3.72.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | xen | 4.13.4_10-150200.3.55.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | xen | 4.13.4_12-150200.3.58.1 |
| SUSE Linux Enterprise Software Development Kit 12 SP5 | xen | 4.12.4_24-3.71.1 |
| SUSE Manager Proxy 4.1 | xen | 4.13.4_10-150200.3.55.1 |
| SUSE Manager Proxy 4.1 | xen | 4.13.4_12-150200.3.58.1 |
| SUSE Manager Retail Branch Server 4.1 | xen | 4.13.4_12-150200.3.58.1 |
| SUSE Manager Retail Branch Server 4.1 | xen | 4.13.4_10-150200.3.55.1 |
| SUSE Manager Server 4.1 | xen | 4.13.4_12-150200.3.58.1 |
| SUSE Manager Server 4.1 | xen | 4.13.4_10-150200.3.55.1 |
| SUSE OpenStack Cloud 9 | xen | 4.11.4_30-2.76.1 |
| SUSE OpenStack Cloud Crowbar 9 | xen | 4.11.4_30-2.76.1 |
| Ubuntu 16.04 LTS | xen | no fix |
| Ubuntu 18.04 LTS | xen | no fix |
| Ubuntu 20.04 LTS | xen | no fix |
| Ubuntu 22.04 LTS | xen | no fix |
| Ubuntu 24.04 LTS | xen | no fix |
| Ubuntu 25.10 | xen | no fix |
| Ubuntu 26.04 LTS | xen | no fix |
| Ubuntu 26.10 | xen | no fix |
| openSUSE Leap 15.3 | xen | 4.14.5_04-150300.3.32.1 |
| openSUSE Leap 15.3 | xen | 4.14.5_02-150300.3.29.1 |
| openSUSE Leap 15.4 | xen | 4.16.1_04-150400.4.5.2 |
| openSUSE Leap 15.4 | xen | 4.16.1_06-150400.4.8.1 |
| openSUSE Leap Micro 5.2 | xen | 4.14.5_04-150300.3.32.1 |
| openSUSE Tumbleweed | xen | 4.16.1_02-3.1 |