Description
A flaw was found in the KVM's AMD nested virtualization (SVM). A malicious L1 guest could purposely fail to intercept the shutdown of a cooperative nested guest (L2), possibly leading to a page fault and kernel panic in the host (L0).
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | Linux kernel | Affected versions <= 6.0.3 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | linux | 6.0.12-1 | — |
| Debian 13 | linux | 6.0.12-1 | — |
| Debian 12 | linux | 6.0.12-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Nvidia-BlueField 22.04 LTS | linux-bluefield | 5.15.0-1014.16 | — |
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux +1 | 5.15.0-67.74 | USN-5912-1 |
| Ubuntu 22.04 LTS | linux-aws | 5.15.0-1031.35 | USN-5912-1 |
| Ubuntu 22.04 LTS | linux-azure | 5.15.0-1034.41 | USN-5912-1 |
| Ubuntu 22.04 LTS | linux-azure-5.19 | 5.19.0-1021.22~22.04.1 | — |
| Ubuntu 22.04 LTS | linux-azure-fde | 5.15.0-1034.41.1 | USN-5912-1 |
| Ubuntu 22.04 LTS | linux-gcp | 5.15.0-1030.37 | USN-5912-1 |
| Ubuntu 22.04 LTS | linux-gke | 5.15.0-1028.33 | USN-5912-1 |
| Ubuntu 22.04 LTS | linux-gkeop | 5.15.0-1016.21 | USN-5938-1 |
| Ubuntu 22.04 LTS | linux-hwe-5.19 | 5.19.0-35.36~22.04.1 | USN-5911-1 |
| Ubuntu 22.04 LTS | linux-ibm | 5.15.0-1026.29 | USN-5935-1 |
| Ubuntu 22.04 LTS | linux-intel-iotg | 5.15.0-1026.31 | USN-5962-1 |
| Ubuntu 22.04 LTS | linux-kvm | 5.15.0-1029.34 | USN-5941-1 |
| Ubuntu 22.04 LTS | linux-nvidia | 5.15.0-1023.23 | — |
| Ubuntu 22.04 LTS | linux-oracle | 5.15.0-1030.36 | USN-5912-1 |
| Ubuntu 22.04 LTS | linux-raspi | 5.15.0-1025.27 | USN-5935-1 |
| Ubuntu 22.04 LTS | linux-riscv +3 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-aws-5.15 | 5.15.0-1031.35~20.04.1 | USN-5912-1 |
| Ubuntu 20.04 LTS | linux-azure-5.15 | 5.15.0-1034.41~20.04.1 | USN-5912-1 |
| Ubuntu 20.04 LTS | linux-gcp-5.15 | 5.15.0-1030.37~20.04.1 | USN-5912-1 |
| Ubuntu 20.04 LTS | linux-gke +26 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gke-5.15 | 5.15.0-1028.33~20.04.1 | USN-5912-1 |
| Ubuntu 20.04 LTS | linux-gkeop-5.15 | 5.15.0-1016.21~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-hwe-5.15 +1 | 5.15.0-67.74~20.04.1 | USN-5912-1 |
| Ubuntu 20.04 LTS | linux-intel-iotg-5.15 | 5.15.0-1026.31~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-nvidia-tegra-5.15 | 5.15.0-1014.14~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-oracle-5.15 | 5.15.0-1030.36~20.04.1 | USN-5912-1 |
| Ubuntu 20.04 LTS | linux-riscv-5.15 | 5.15.0-1030.34~20.04.1 | — |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
Show 12 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-intel-iot-realtime | 5.15.0-1022.27 | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime | 5.15.0-1033.36 | — |
| Ubuntu Pro FIPS 20.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS 18.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS 16.04 LTS | linux-fips | No fix yet | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS-updates 16.04 LTS | linux-fips | No fix yet | — |
| Ubuntu Pro 20.04 LTS | linux +10 | No fix yet | — |
| Ubuntu Pro 20.04 LTS | linux-azure-fde-5.15 | 5.15.0-1114.123~20.04.1 | — |
| Ubuntu Pro 18.04 LTS | linux +12 | No fix yet | — |
| Ubuntu Pro 16.04 LTS | linux +7 | No fix yet | — |
| Ubuntu Pro 14.04 LTS | linux +3 | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | kernel-64kb +6 | 5.14.21-150400.24.41.1 | SUSE-SU-2023:0149-1 |
| SLES 15 SP4 | kernel-azure +2 | 5.14.21-150400.14.31.1 | SUSE-SU-2023:0146-1 |
| SLES 15 SP4 | kernel-default-base | 5.14.21-150400.24.41.1.150400.24.15.1 | SUSE-SU-2023:0149-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLE Micro 5.3 | kernel-default | 5.14.21-150400.24.41.1 | SUSE-SU-2023:0149-1 |
| SLE Micro 5.3 | kernel-default-base | 5.14.21-150400.24.41.1.150400.24.15.1 | SUSE-SU-2023:0149-1 |
| SLE Micro 5.3 | kernel-rt | 5.14.21-150400.15.8.1 | SUSE-SU-2023:0147-1 |
| SLE Live Patching 15 SP4 | kernel-default | 5.14.21-150400.24.41.1 | SUSE-SU-2023:0149-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4-RT_Update_2 | 1-150400.1.3.1 | SUSE-SU-2023:0147-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_7 | 1-150400.9.3.1 | SUSE-SU-2023:0149-1 |
| SUSE Real Time Module 15 SP4 | kernel-rt +3 | 5.14.21-150400.15.8.1 | SUSE-SU-2023:0147-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.4 | dtb-aarch64 +10 | 5.14.21-150400.24.41.1 | SUSE-SU-2023:0149-1 |
| openSUSE Leap 15.4 | kernel-azure +2 | 5.14.21-150400.14.31.1 | SUSE-SU-2023:0146-1 |
| openSUSE Leap 15.4 | kernel-default-base | 5.14.21-150400.24.41.1.150400.24.15.1 | SUSE-SU-2023:0149-1 |
| openSUSE Leap 15.4 | kernel-rt +3 | 5.14.21-150400.15.8.1 | SUSE-SU-2023:0147-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.3 | kernel-default | 5.14.21-150400.24.41.1 | SUSE-SU-2023:0149-1 |
| openSUSE Leap Micro 5.3 | kernel-default-base | 5.14.21-150400.24.41.1.150400.24.15.1 | SUSE-SU-2023:0149-1 |
| openSUSE Leap Micro 5.3 | kernel-rt | 5.14.21-150400.15.8.1 | SUSE-SU-2023:0147-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | kernel | 5.15.82.1-1 | — |
Advisories 10
- USN-5935-1 linux-ibm, linux-raspi vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-5938-1 linux-gkeop vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-5941-1 linux-kvm vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-5962-1 linux-intel-iotg vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-5911-1 linux, linux-aws, linux-azure, linux-gcp, linux-hwe-5.19, linux-ibm, linux-lowlatency, linux-oracle vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-5912-1 linux, linux-aws, linux-aws-5.15, linux-azure, linux-azure-5.15, linux-azure-fde, linux-gcp, linux-gcp-5.15, linux-gke, linux-gke-5.15, linux-hwe-5.15, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-oracle, linux-oracle-5.15 vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- SUSE-SU-2023:0146-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:0149-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:0147-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-0211 Linux Kernel: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Jan 18, 2024