CVE-2022-26362
Fixed in a distro release EPSS <1%
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.
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 |