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OpenAdvisories
Medium · 4.4 CVE-2024-36953 EUVD-2024-36303

KVM: arm64: vgic-v2: Check for non-NULL vCPU in vgic_v2_parse_attr()

Published May 30, 2024 · Updated May 11, 2026 · Assigned by Linux

Vendor: Linux Product: Linux Package: linux Package: linux Package: linux-allwinner-5.19 Package: linux-aws Package: linux-aws-5.0 Package: linux-aws-5.11 Package: linux-aws-5.13 Package: linux-aws-5.15 Package: linux-aws-5.19 Package: linux-aws-5.3 Package: linux-aws-5.4 Package: linux-aws-5.8 Package: linux-aws-6.2 Package: linux-aws-6.5 Package: linux-aws-6.8 Package: linux-aws-fips Package: linux-aws-hwe Package: linux-azure Package: linux-azure-4.15 Package: linux-azure-5.11 Package: linux-azure-5.13 Package: linux-azure-5.15 Package: linux-azure-5.19 Package: linux-azure-5.3 Package: linux-azure-5.4 Package: linux-azure-5.8 Package: linux-azure-6.2 Package: linux-azure-6.5 Package: linux-azure-6.8 Package: linux-azure-edge Package: linux-azure-fde Package: linux-azure-fde-5.19 Package: linux-azure-fde-6.2 Package: linux-azure-fips Package: linux-bluefield Package: linux-fips Package: linux-gcp Package: linux-gcp-4.15 Package: linux-gcp-5.11 Package: linux-gcp-5.13 Package: linux-gcp-5.15 Package: linux-gcp-5.19 Package: linux-gcp-5.3 Package: linux-gcp-5.4 Package: linux-gcp-5.8 Package: linux-gcp-6.2 Package: linux-gcp-6.5 Package: linux-gcp-6.8 Package: linux-gcp-fips Package: linux-gke Package: linux-gke-4.15 Package: linux-gke-5.15 Package: linux-gke-5.4 Package: linux-gkeop Package: linux-gkeop-5.15 Package: linux-gkeop-5.4 Package: linux-hwe Package: linux-hwe-5.11 Package: linux-hwe-5.13 Package: linux-hwe-5.15 Package: linux-hwe-5.19 Package: linux-hwe-5.4 Package: linux-hwe-5.8 Package: linux-hwe-6.2 Package: linux-hwe-6.5 Package: linux-hwe-6.8 Package: linux-hwe-edge Package: linux-ibm Package: linux-ibm-5.15 Package: linux-ibm-5.4 Package: linux-ibm-6.8 Package: linux-intel-5.13 Package: linux-intel-iot-realtime Package: linux-intel-iotg Package: linux-intel-iotg-5.15 Package: linux-iot Package: linux-kvm Package: linux-lowlatency Package: linux-lowlatency-hwe-5.15 Package: linux-lowlatency-hwe-5.19 Package: linux-lowlatency-hwe-6.2 Package: linux-lowlatency-hwe-6.5 Package: linux-lowlatency-hwe-6.8 Package: linux-nvidia Package: linux-nvidia-6.2 Package: linux-nvidia-6.5 Package: linux-nvidia-6.8 Package: linux-nvidia-lowlatency Package: linux-nvidia-tegra Package: linux-nvidia-tegra-5.15 Package: linux-nvidia-tegra-igx Package: linux-oem Package: linux-oem-5.10 Package: linux-oem-5.13 Package: linux-oem-5.14 Package: linux-oem-5.17 Package: linux-oem-5.6 Package: linux-oem-6.0 Package: linux-oem-6.1 Package: linux-oem-6.5 Package: linux-oem-6.8 Package: linux-oracle Package: linux-oracle-5.0 Package: linux-oracle-5.11 Package: linux-oracle-5.13 Package: linux-oracle-5.15 Package: linux-oracle-5.3 Package: linux-oracle-5.4 Package: linux-oracle-5.8 Package: linux-oracle-6.5 Package: linux-oracle-6.8 Package: linux-raspi Package: linux-raspi-5.4 Package: linux-raspi-realtime Package: linux-raspi2 Package: linux-realtime Package: linux-realtime-6.8 Package: linux-riscv Package: linux-riscv-5.11 Package: linux-riscv-5.15 Package: linux-riscv-5.19 Package: linux-riscv-5.8 Package: linux-riscv-6.5 Package: linux-riscv-6.8 Package: linux-starfive-5.19 Package: linux-starfive-6.2 Package: linux-starfive-6.5 Package: linux-vmware Package: linux-xilinx-zynqmp Platform: Linux Ecosystem: Debian Ecosystem: Ubuntu

Description

In the Linux kernel, the following vulnerability has been resolved:

KVM: arm64: vgic-v2: Check for non-NULL vCPU in vgic_v2_parse_attr()

vgic_v2_parse_attr() is responsible for finding the vCPU that matches
the user-provided CPUID, which (of course) may not be valid. If the ID
is invalid, kvm_get_vcpu_by_id() returns NULL, which isn't handled
gracefully.

Similar to the GICv3 uaccess flow, check that kvm_get_vcpu_by_id()
actually returns something and fail the ioctl if not.

Affected products

VendorProductAffectedFixed
Linux Linux 4.7 5.10.217

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.

ReleasePackageFixed inAdvisory
Debian 14 linux 6.8.11-1 —
Debian 13 linux 6.8.11-1 —
Debian 12 linux 6.1.94-1 —
Debian 11 linux 5.10.218-1 DSA-5703-1
Debian 10 linux-5.10 5.10.218-1~deb10u1 DLA-3843-1
ReleasePackageFixed inAdvisory
Ubuntu Nvidia-BlueField 22.04 LTS linux-bluefield 5.15.0-1050.52 —
Ubuntu 24.04 LTS linux 6.8.0-40.40 USN-6949-1
Ubuntu 24.04 LTS linux-aws 6.8.0-1013.14 USN-6949-1
Ubuntu 24.04 LTS linux-azure 6.8.0-1012.14 USN-6952-2
Ubuntu 24.04 LTS linux-gcp 6.8.0-1012.13 USN-6949-1
Ubuntu 24.04 LTS linux-gke 6.8.0-1008.11 USN-6949-1
Ubuntu 24.04 LTS linux-ibm +2 6.8.0-1010.10 USN-6955-1, USN-6952-1, USN-6949-1
Ubuntu 24.04 LTS linux-nvidia 6.8.0-1011.11 USN-6949-1
Ubuntu 24.04 LTS linux-nvidia-lowlatency 6.8.0-1011.11.1 USN-6952-1
Ubuntu 24.04 LTS linux-raspi 6.8.0-1009.10 USN-6949-2
Ubuntu 24.04 LTS linux-riscv +1 6.8.0-40.40.1 USN-6949-2
Ubuntu 22.04 LTS linux +1 5.15.0-118.128 USN-6950-1
Ubuntu 22.04 LTS linux-aws 5.15.0-1067.73 USN-6950-1
Ubuntu 22.04 LTS linux-aws-6.8 6.8.0-1013.14~22.04.1 —
Ubuntu 22.04 LTS linux-azure 5.15.0-1070.79 USN-6956-1
Ubuntu 22.04 LTS linux-azure-6.8 6.8.0-1012.14~22.04.1 —
Ubuntu 22.04 LTS linux-azure-fde 5.15.0-1070.79.1 USN-6956-1
Ubuntu 22.04 LTS linux-gcp 5.15.0-1066.74 USN-6950-1
Ubuntu 22.04 LTS linux-gcp-6.8 6.8.0-1012.13~22.04.1 —
Ubuntu 22.04 LTS linux-gke 5.15.0-1064.70 USN-6950-1
Ubuntu 22.04 LTS linux-gkeop 5.15.0-1050.57 USN-6950-1
Ubuntu 22.04 LTS linux-hwe-6.8 6.8.0-40.40~22.04.3 —
Ubuntu 22.04 LTS linux-ibm +1 5.15.0-1060.63 USN-6950-2
Ubuntu 22.04 LTS linux-ibm-6.8 +1 6.8.0-1010.10~22.04.1 —
Ubuntu 22.04 LTS linux-intel-iotg 5.15.0-1062.68 USN-6950-1
Ubuntu 22.04 LTS linux-kvm 5.15.0-1064.69 USN-6950-1
Ubuntu 22.04 LTS linux-nvidia 5.15.0-1062.63 USN-6950-1
Ubuntu 22.04 LTS linux-nvidia-6.8 6.8.0-1011.11~22.04.1 USN-6949-1
Ubuntu 22.04 LTS linux-nvidia-tegra 5.15.0-1027.27 —
Ubuntu 22.04 LTS linux-nvidia-tegra-igx 5.15.0-1015.15 —
Ubuntu 22.04 LTS linux-oracle 5.15.0-1065.71 USN-6950-3
Ubuntu 22.04 LTS linux-riscv +31 No fix yet —
Ubuntu 22.04 LTS linux-riscv-6.8 +1 6.8.0-40.40.1~22.04.1 —
Ubuntu 22.04 LTS linux-xilinx-zynqmp 5.15.0-1035.39 USN-7019-1
Ubuntu 20.04 LTS linux 5.4.0-202.222 USN-7159-1
Ubuntu 20.04 LTS linux-aws 5.4.0-1136.146 USN-7159-2
Ubuntu 20.04 LTS linux-aws-5.15 5.15.0-1067.73~20.04.1 USN-6950-2
Ubuntu 20.04 LTS linux-azure 5.4.0-1142.149 USN-7195-1
Ubuntu 20.04 LTS linux-azure-5.15 5.15.0-1070.79~20.04.1 USN-6956-1
Ubuntu 20.04 LTS linux-azure-fde-5.15 5.15.0-1070.79~20.04.1.1 USN-6956-1
Ubuntu 20.04 LTS linux-bluefield 5.4.0-1096.103 USN-7159-3
Ubuntu 20.04 LTS linux-gcp 5.4.0-1140.149 USN-7159-1
Ubuntu 20.04 LTS linux-gcp-5.15 5.15.0-1066.74~20.04.1 USN-6950-1
Ubuntu 20.04 LTS linux-gke +27 No fix yet —
Ubuntu 20.04 LTS linux-gkeop-5.15 5.15.0-1050.57~20.04.1 USN-6950-2
Ubuntu 20.04 LTS linux-hwe-5.15 +1 5.15.0-118.128~20.04.1 USN-6950-4, USN-6950-1
Ubuntu 20.04 LTS linux-ibm 5.4.0-1083.88 USN-7159-1
Ubuntu 20.04 LTS linux-ibm-5.15 5.15.0-1060.63~20.04.1 USN-6950-2
Ubuntu 20.04 LTS linux-intel-iotg-5.15 5.15.0-1062.68~20.04.1 USN-6950-1
Ubuntu 20.04 LTS linux-iot 5.4.0-1045.46 USN-7159-4
Ubuntu 20.04 LTS linux-kvm 5.4.0-1124.132 USN-7159-1
Ubuntu 20.04 LTS linux-nvidia-tegra-5.15 5.15.0-1027.27~20.04.1 —
Ubuntu 20.04 LTS linux-oracle 5.4.0-1135.144 USN-7159-3
Ubuntu 20.04 LTS linux-oracle-5.15 5.15.0-1065.71~20.04.1 USN-6957-1
Ubuntu 20.04 LTS linux-raspi 5.4.0-1120.132 USN-7159-1
Ubuntu 20.04 LTS linux-riscv-5.15 5.15.0-1063.67~20.04.1 —
Ubuntu 20.04 LTS linux-xilinx-zynqmp 5.4.0-1055.59 USN-7159-1
Ubuntu 18.04 LTS linux-gcp +14 No fix yet —
Show 13 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu 16.04 LTS linux-hwe-edge No fix yet —
Ubuntu Pro Realtime 24.04 LTS linux-raspi-realtime 6.8.0-2008.8 —
Ubuntu Pro Realtime 24.04 LTS linux-realtime 6.8.1-1006.6 —
Ubuntu Pro Realtime 22.04 LTS linux-intel-iot-realtime 5.15.0-1060.62 —
Ubuntu Pro Realtime 22.04 LTS linux-realtime 5.15.0-1068.76 —
Ubuntu Pro Realtime 22.04 LTS linux-realtime-6.8 6.8.1-1006.6~22.04.1 —
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-updates 24.04 LTS linux-fips 6.8.0-78.78+fips1 —
Ubuntu Pro FIPS-updates 22.04 LTS linux-aws-fips 5.15.0-1067.73+fips1 —
Ubuntu Pro FIPS-updates 22.04 LTS linux-azure-fips 5.15.0-1070.79+fips1 —
Ubuntu Pro FIPS-updates 22.04 LTS linux-fips 5.15.0-118.128+fips1 —
Ubuntu Pro FIPS-updates 22.04 LTS linux-gcp-fips 5.15.0-1066.74+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-aws-fips 5.4.0-1136.146+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-azure-fips 5.4.0-1142.149+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-fips 5.4.0-1110.120 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-gcp-fips 5.4.0-1140.149+fips1 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-aws-fips 4.15.0-2113.119 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-azure-fips 4.15.0-2092.98 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-fips 4.15.0-1129.140 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-gcp-fips 4.15.0-2076.81 —
Ubuntu Pro FIPS-preview 22.04 LTS linux-fips +3 No fix yet —
Ubuntu Pro 18.04 LTS linux 4.15.0-231.243 USN-7121-1
Ubuntu Pro 18.04 LTS linux-aws 4.15.0-1175.188 USN-7121-1
Ubuntu Pro 18.04 LTS linux-aws-5.4 5.4.0-1136.146~18.04.1 USN-7159-2
Ubuntu Pro 18.04 LTS linux-azure-4.15 4.15.0-1183.198 USN-7121-1
Ubuntu Pro 18.04 LTS linux-azure-5.4 5.4.0-1142.149~18.04.1 USN-7195-2
Ubuntu Pro 18.04 LTS linux-gcp-4.15 4.15.0-1168.185 USN-7121-1
Ubuntu Pro 18.04 LTS linux-gcp-5.4 5.4.0-1140.149~18.04.1 USN-7159-1
Ubuntu Pro 18.04 LTS linux-hwe-5.4 5.4.0-202.222~18.04.1 USN-7159-1
Ubuntu Pro 18.04 LTS linux-ibm-5.4 5.4.0-1083.88~18.04.1 USN-7159-1
Ubuntu Pro 18.04 LTS linux-kvm 4.15.0-1158.163 USN-7121-1
Ubuntu Pro 18.04 LTS linux-oracle 4.15.0-1137.148 USN-7121-1
Ubuntu Pro 18.04 LTS linux-oracle-5.4 5.4.0-1135.144~18.04.1 USN-7159-3
Ubuntu Pro 18.04 LTS linux-raspi-5.4 5.4.0-1120.132~18.04.1 USN-7159-5
Ubuntu Pro 16.04 LTS linux-aws-hwe 4.15.0-1175.188~16.04.1 USN-7121-1
Ubuntu Pro 16.04 LTS linux-azure 4.15.0-1183.198~16.04.1 USN-7121-1
Ubuntu Pro 16.04 LTS linux-gcp 4.15.0-1168.185~16.04.1 USN-7121-1
Ubuntu Pro 16.04 LTS linux-hwe 4.15.0-231.243~16.04.1 USN-7121-1
Ubuntu Pro 16.04 LTS linux-oracle 4.15.0-1137.148~16.04.1 USN-7121-3
Ubuntu Pro 14.04 LTS linux-azure 4.15.0-1183.198~14.04.1 USN-7121-2
ReleasePackageFixed inAdvisory
RHEL 8 kernel-rt +12 4.18.0-553.22.1.rt7.363.el8_10 RHSA-2024:7001
RHEL 8 perf +26 4.18.0-553.22.1.el8_10 RHSA-2024:7000

AlmaLinux

Errata ↗
ReleasePackageFixed inAdvisory
AlmaLinux 8 kernel-rt +11 4.18.0-553.22.1.rt7.363.el8_10 ALSA-2024:7001
AlmaLinux 8 perf +24 4.18.0-553.22.1.el8_10 ALSA-2024:7000

Rocky Linux

Errata ↗
ReleasePackageFixed inAdvisory
Rocky Linux 8 kernel 4.18.0-553.22.1.el8_10 RLSA-2024:7000
Rocky Linux 8 kernel-rt 4.18.0-553.22.1.rt7.363.el8_10 RLSA-2024:7001
ReleasePackageFixed inAdvisory
SLES 15 SP6 kernel-64kb +4 6.4.0-150600.23.25.1 SUSE-SU-2024:3561-1
SLES 15 SP6 kernel-azure +2 6.4.0-150600.8.14.1 SUSE-SU-2024:3551-1
SLES 15 SP6 kernel-coco +3 6.4.0-15061.6.coco15sp6.1 SUSE-SU-2024:3553-1
SLES 15 SP6 kernel-default-base 6.4.0-150600.23.25.1.150600.12.10.2 SUSE-SU-2024:3561-1
SLES 15 SP6 kernel-docs +1 6.4.0-150600.23.25.2 SUSE-SU-2024:3561-1
SLES 15 SP5 kernel-64kb +6 5.14.21-150500.55.88.1 SUSE-SU-2024:4364-1
SLES 15 SP5 kernel-azure +2 5.14.21-150500.33.75.1 SUSE-SU-2024:4376-1
SLES 15 SP5 kernel-default-base 5.14.21-150500.55.88.1.150500.6.39.4 SUSE-SU-2024:4364-1
Show 6 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLE Micro 6.0 kernel-default-base 6.4.0-17.1.1.51 SUSE-SU-2025:20073-1
SLE Micro 6.0 kernel-livepatch-MICRO-6-0_Update_3 +1 1-1.2 SUSE-SU-2025:20077-1, SUSE-SU-2025:20073-1
SLE Micro 6.0 kernel-rt +1 6.4.0-11.1 SUSE-SU-2025:20077-1
SLE Micro 6.0 kernel-source +2 6.4.0-20.1 SUSE-SU-2025:20073-1
SLE Micro 5.5 kernel-default 5.14.21-150500.55.88.1 SUSE-SU-2024:4364-1
SLE Micro 5.5 kernel-default-base 5.14.21-150500.55.88.1.150500.6.39.4 SUSE-SU-2024:4364-1
SLE Micro 5.5 kernel-rt +1 5.14.21-150500.13.79.1 SUSE-SU-2024:4315-1
SLE Live Patching 15 SP6 kernel-default 6.4.0-150600.23.25.1 SUSE-SU-2024:3561-1
SLE Live Patching 15 SP6 kernel-livepatch-SLE15-SP6-RT_Update_4 1-150600.1.3.1 SUSE-SU-2024:3564-1
SLE Live Patching 15 SP6 kernel-livepatch-SLE15-SP6_Update_5 1-150600.13.3.1 SUSE-SU-2024:3561-1
SLE Live Patching 15 SP5 kernel-default 5.14.21-150500.55.88.1 SUSE-SU-2024:4364-1
SLE Live Patching 15 SP5 kernel-livepatch-SLE15-SP5-RT_Update_23 1-150500.11.3.1 SUSE-SU-2024:4315-1
SLE Live Patching 15 SP5 kernel-livepatch-SLE15-SP5_Update_21 1-150500.11.5.1 SUSE-SU-2024:4364-1
SUSE Real Time Module 15 SP6 kernel-rt +3 6.4.0-150600.10.14.1 SUSE-SU-2024:3564-1
SUSE Real Time Module 15 SP5 kernel-rt +3 5.14.21-150500.13.79.1 SUSE-SU-2024:4315-1
ReleasePackageFixed inAdvisory
openSUSE Leap 15.6 dtb-aarch64 +8 6.4.0-150600.23.25.1 SUSE-SU-2024:3561-1
openSUSE Leap 15.6 kernel-azure +2 6.4.0-150600.8.14.1 SUSE-SU-2024:3551-1
openSUSE Leap 15.6 kernel-default-base 6.4.0-150600.23.25.1.150600.12.10.2 SUSE-SU-2024:3561-1
openSUSE Leap 15.6 kernel-docs +1 6.4.0-150600.23.25.2 SUSE-SU-2024:3561-1
openSUSE Leap 15.6 kernel-rt +3 6.4.0-150600.10.14.1 SUSE-SU-2024:3564-1
openSUSE Leap 15.5 kernel-azure +2 5.14.21-150500.33.75.1 SUSE-SU-2024:4376-1
openSUSE Leap 15.5 kernel-rt +3 5.14.21-150500.13.79.1 SUSE-SU-2024:4315-1
Show 1 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
openSUSE Leap Micro 5.5 kernel-rt 5.14.21-150500.13.79.1 SUSE-SU-2024:4315-1

Amazon Linux

ReleasePackageFixed inAdvisory
Amazon Linux 2023 kernel-livepatch-6.1.91-99.172 1.0-0.amzn2023 ALAS2023-2024-643
Amazon Linux 2023 perf +14 6.1.91-99.172.amzn2023 ALAS2023-2024-643

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 8 perf +19 4.18.0-553.22.1.el8_10 ELSA-2024-7000

Advisories 42

References