CVE-2026-62428
Fixed in a distro release EPSS <1%CVSS 7.8
When grant-copy operations are processed, the respective grant may or may not already be in use by another operation (a mapping or another copy). For all copy operations the referenced guest frame is looked up. When another operation is already active for the grant (the grant is "pinned"), what is being supplied back to actually carry out permission checks and copy operation may not be consistent: The permission check may be carried out on a page different from the one involved in the copy.
Products: xen
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Alpine 3.21 | xen | 4.19.6-r0 |
| Alpine 3.22 | xen | 4.20.4-r0 |
| Alpine 3.23 | xen | 4.20.4-r0 |
| Alpine 3.24 | xen | 4.21.2-r0 |
| Debian 12 | xen | 4.17.7-0+deb12u1 |
| Debian 13 | xen | 4.20.3+127-gc42374a105-0+deb13u1 |
| Debian 14 | xen | 4.20.3+127-gc42374a105-1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | xen | 4.16.7_12-150400.4.89.3 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | xen | 4.16.7_12-150400.4.89.3 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | xen | 4.17.6_14-150500.3.76.3 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | xen | 4.17.6_14-150500.3.76.3 |
| SUSE Linux Enterprise Micro 5.3 | xen | 4.16.7_12-150400.4.89.3 |
| SUSE Linux Enterprise Micro 5.4 | xen | 4.16.7_12-150400.4.89.3 |
| SUSE Linux Enterprise Micro 5.5 | xen | 4.17.6_14-150500.3.76.3 |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | xen | 4.20.4_04-150700.3.46.1 |
| SUSE Linux Enterprise Module for Server Applications 15 SP7 | xen | 4.20.4_04-150700.3.46.1 |
| SUSE Linux Enterprise Server 12 SP5-LTSS | xen | 4.12.4_72-3.148.4 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | xen | 4.16.7_12-150400.4.89.3 |
| SUSE Linux Enterprise Server 15 SP5-LTSS | xen | 4.17.6_14-150500.3.76.3 |
| SUSE Linux Enterprise Server 15 SP6-LTSS | xen | 4.18.5_20-150600.3.53.3 |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | xen | 4.12.4_72-3.148.4 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | xen | 4.16.7_12-150400.4.89.3 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | xen | 4.17.6_14-150500.3.76.3 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | xen | 4.18.5_20-150600.3.53.3 |
| 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 26.04 LTS | xen | no fix |
| Ubuntu 26.10 | xen | no fix |
| openSUSE Tumbleweed | xen | 4.22.0_02-1.1 |