Description
A flaw was found in KVM. An improper check in svm_set_x2apic_msr_interception() may allow direct access to host x2apic msrs when the guest resets its apic, potentially leading to a denial of service condition.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
| Red Hat | Red Hat Enterprise Linux 9.2 Extended Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 6 | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
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 | 6.5.8-1 | — |
| Debian 13 | linux | 6.5.8-1 | — |
| Debian 12 | linux | 6.1.64-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux-aws-6.2 | 6.2.0-1016.16~22.04.1 | USN-6502-1 |
| Ubuntu 22.04 LTS | linux-azure-6.2 +1 | 6.2.0-1017.17~22.04.1 | USN-6502-4, USN-6502-1 |
| Ubuntu 22.04 LTS | linux-azure-fde-6.2 | 6.2.0-1017.17~22.04.1.1 | USN-6502-4 |
| Ubuntu 22.04 LTS | linux-gcp-6.2 | 6.2.0-1019.21~22.04.1 | USN-6502-4 |
| Ubuntu 22.04 LTS | linux-hwe-6.2 | 6.2.0-37.38~22.04.1 | USN-6502-1 |
| Ubuntu 22.04 LTS | linux-nvidia-6.2 | 6.2.0-1012.12 | USN-6502-3 |
| Ubuntu 22.04 LTS | linux-nvidia-6.5 | 6.5.0-1007.7 | — |
| Ubuntu 22.04 LTS | linux-oem-6.1 | 6.1.0-1026.26 | USN-6497-1 |
| Ubuntu 22.04 LTS | linux-oem-6.5 | 6.5.0-1008.8 | USN-6503-1 |
| Ubuntu 22.04 LTS | linux-riscv +15 | No fix yet | — |
| Ubuntu 22.04 LTS | linux-starfive-6.2 | 6.2.0-1009.10~22.04.1 | USN-6520-1 |
| Ubuntu 20.04 LTS | linux-gke +26 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | bpftool | 7.3.0-427.16.1.el9_4 | RHSA-2024:2758 |
| RHEL 9 | rv +64 | 5.14.0-427.16.1.el9_4 | RHSA-2024:2758 |
| RHEL 8 | kernel-rt +12 | 4.18.0-553.8.1.rt7.349.el8_10 | RHSA-2024:4352 |
| RHEL 8 | perf +26 | 4.18.0-553.8.1.el8_10 | RHSA-2024:4211 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.2 EUS | bpftool | 7.0.0-284.69.1.el9_2 | RHSA-2024:3855 |
| RHEL 9.2 EUS | kernel-rt +14 | 5.14.0-284.69.1.rt14.354.el9_2 | RHSA-2024:3854 |
| RHEL 9.2 EUS | perf +47 | 5.14.0-284.69.1.el9_2 | RHSA-2024:3855 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | bpftool | 7.3.0-427.16.1.el9_4 | ALSA-2024:2758 |
| AlmaLinux 9 | rv +60 | 5.14.0-427.16.1.el9_4 | ALSA-2024:2758 |
| AlmaLinux 8 | kernel-rt +11 | 4.18.0-553.8.1.rt7.349.el8_10 | ALSA-2024:4352 |
| AlmaLinux 8 | perf +24 | 4.18.0-553.8.1.el8_10 | ALSA-2024:4211 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | kernel | 4.18.0-553.8.1.el8_10 | RLSA-2024:4211 |
| Rocky Linux 8 | kernel-rt | 4.18.0-553.8.1.rt7.349.el8_10 | RLSA-2024:4352 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | kernel-livepatch-6.1.61-85.141 | 1.0-0.amzn2023 | ALAS2023-2023-430 |
| Amazon Linux 2023 | perf +13 | 6.1.61-85.141.amzn2023 | ALAS2023-2023-430 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | kernel | 5.15.153.1-1 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | kernel-uek +10 | 5.15.0-201.135.6.el9uek | ELSA-2023-13043 |
| Oracle Linux 8 | kernel-uek-container +1 | 5.4.17-2136.324.5.3.el8 | ELSA-2023-13043, ELSA-2023-12911 |
| Oracle Linux 8 | perf +19 | 4.18.0-553.8.1.el8_10 | ELSA-2024-4211, ELSA-2023-13043 |
| Oracle Linux 7 | kernel-uek +4 | 5.4.17-2136.324.5.3.el8uek | ELSA-2023-12874 |
| Oracle Linux 7 | kernel-uek-container +1 | 5.4.17-2136.324.5.3.el7 | ELSA-2023-12910 |
| Oracle Linux 7 | perf +3 | 5.4.17-2136.324.5.3.el7uek | ELSA-2023-12874 |
Advisories 24
- USN-6520-1 linux-starfive-6.2 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- ALSA-2024:2758 Moderate: kernel security and bug fix update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:4211 Important: kernel security and bug fix update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:4352 Important: kernel-rt security and bug fix update AlmaLinux Security Advisories · Oct 29, 2026
- USN-6502-3 linux-nvidia-6.2 vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-6502-1 linux, linux-aws, linux-aws-6.2, linux-hwe-6.2, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-6.2, linux-raspi, linux-starfive vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-6502-4 linux-azure, linux-azure-6.2, linux-azure-fde-6.2, linux-gcp, linux-gcp-6.2 vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-6497-1 linux-oem-6.1 vulnerabilities Ubuntu Security Notices (USN) · Oct 22, 2026
- RHSA-2024:2758 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2024:4352 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2024:4211 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2024:3855 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2024:3854 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- USN-6503-1 linux, linux-aws, linux-laptop, linux-lowlatency, linux-oem-6.5, linux-oracle, linux-raspi, linux-starfive vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- ALAS2023-2023-430 Important: kernel security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Feb 8, 2026
- RLSA-2024:4352 Important: kernel-rt security and bug fix update Rocky Linux Security Advisories · Feb 4, 2026
- RLSA-2024:4211 Important: kernel security and bug fix update Rocky Linux Security Advisories · Feb 4, 2026
- WID-SEC-2024-1905 IBM QRadar SIEM: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 3, 2025
- WID-SEC-2023-2835 Linux Kernel: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Oct 23, 2024
- ELSA-2024-4211 Important: kernel security and bug fix update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jul 2, 2024
- ELSA-2023-13043 Important: Unbreakable Enterprise kernel security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Dec 13, 2023
- ELSA-2023-12874 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Oct 17, 2023
- ELSA-2023-12910 Important: Unbreakable Enterprise kernel-container security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Oct 13, 2023
- ELSA-2023-12911 Important: Unbreakable Enterprise kernel-container security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Oct 13, 2023
References
- RHSA-2024:2758 vendor-advisory
- RHSA-2024:3854 vendor-advisory
- RHSA-2024:3855 vendor-advisory
- RHSA-2024:4211 vendor-advisory
- RHSA-2024:4352 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2023-5090 vdb-entry
- RHBZ#2248122 issue-tracking