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Vulnerability · Published May 9, 2025 · Assigned by Linux

CVE-2025-37849KVM: arm64: Tear down vGIC on failed vCPU creation

High 8.8

In plain English

A high-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.3%top 80.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Tear down vGIC on failed vCPU creation If kvm_arch_vcpu_create() fails to share the vCPU page with the hypervisor, we propagate the error back to the ioctl but leave the vGIC vCPU data initialised. Note only does this leak the corresponding memory when the vCPU is destroyed but it can also lead to use-after-free if the redistributor device handling tries to walk into the vCPU. Add the missing cleanup to kvm_arch_vcpu_create(), ensuring that the vGIC vCPU structures are destroyed on error.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.135-1DEBIAN-CVE-2025-37849
Debian:13linux6.12.25-1DEBIAN-CVE-2025-37849
Debian:14linux6.12.25-1DEBIAN-CVE-2025-37849
Ubuntu:22.04:LTSlinux5.15.0-174.184USN-8159-1
Ubuntu:22.04:LTSlinux5.15.0-174.184UBUNTU-CVE-2025-37849
Ubuntu:24.04:LTSlinux6.8.0-100.100UBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-aws5.15.0-1104.111UBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-aws5.15.0-1104.111USN-8159-1
Ubuntu:24.04:LTSlinux-aws6.8.0-1046.49UBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1046.49~22.04.1UBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-azure5.15.0-1109.118UBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-azure5.15.0-1109.118USN-8163-2
Ubuntu:24.04:LTSlinux-azure6.8.0-1046.52UBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-37849
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1051.57~22.04.1UBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1109.118.1UBUNTU-CVE-2025-37849
Ubuntu:24.04:LTSlinux-azure-fde6.8.0-1046.53UBUNTU-CVE-2025-37849
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-azure-fde-6.86.8.0-1046.53~22.04.1UBUNTU-CVE-2025-37849
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-gcp5.15.0-1104.113UBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-gcp5.15.0-1104.113USN-8159-1
Ubuntu:24.04:LTSlinux-gcp6.8.0-1047.50UBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-37849
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1047.50~22.04.2UBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-gke5.15.0-1100.106USN-8159-1
Ubuntu:22.04:LTSlinux-gke5.15.0-1100.106UBUNTU-CVE-2025-37849
Ubuntu:24.04:LTSlinux-gke6.8.0-1043.48UBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1087.95USN-8159-1
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1087.95UBUNTU-CVE-2025-37849
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1030.33UBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-37849
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-100.100~22.04.1UBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-ibm5.15.0-1098.101UBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-ibm5.15.0-1098.101USN-8159-1
Ubuntu:24.04:LTSlinux-ibm6.8.0-1044.44UBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1044.44~22.04.1UBUNTU-CVE-2025-37849
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1099.105USN-8159-1
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1099.105UBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-kvm5.15.0-1096.101USN-8159-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1096.101UBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-174.184USN-8159-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-174.184UBUNTU-CVE-2025-37849
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-100.100.1UBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-37849
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-100.100.1~22.04.1UBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1099.100USN-8159-1
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1099.100UBUNTU-CVE-2025-37849
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1046.49UBUNTU-CVE-2025-37849
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1046.49~22.04.1UBUNTU-CVE-2025-37849
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1046.49.1UBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1056.56USN-8159-1
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1056.56UBUNTU-CVE-2025-37849
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1020.20UBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1045.45UBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1045.45USN-8159-1
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-37849
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-37849
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-oracle5.15.0-1101.107UBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-oracle5.15.0-1101.107USN-8159-1
Ubuntu:24.04:LTSlinux-oracle6.8.0-1043.44UBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1043.44~22.04.1UBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-raspi5.15.0-1098.101USN-8159-1
Ubuntu:22.04:LTSlinux-raspi5.15.0-1098.101UBUNTU-CVE-2025-37849
Ubuntu:24.04:LTSlinux-raspi6.8.0-1047.51UBUNTU-CVE-2025-37849
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-37849
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-37849
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-100.100~22.04.1UBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-37849
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1023.24UBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1068.72UBUNTU-CVE-2025-37849
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1068.72USN-8159-1

Affected products (as reported)

VendorProductVersions
Linux Linux 6211753fdfd05af9e08f54c8d0ba3ee516034878 – before 07476e0d932afc53c05468076393ac35d0b4999e6211753fdfd05af9e08f54c8d0ba3ee516034878 – before 5085e02362b9948f82fceca979b8f8e12acb1cc56211753fdfd05af9e08f54c8d0ba3ee516034878 – before c322789613407647a05ff5c451a7bf545fb34e736211753fdfd05af9e08f54c8d0ba3ee516034878 – before 2480326eba8ae9ccc5e4c3c2dc8d407db68e3c526211753fdfd05af9e08f54c8d0ba3ee516034878 – before f1e9087abaeedec9bf2894a282ee4f0d8383f2996211753fdfd05af9e08f54c8d0ba3ee516034878 – before 250f25367b58d8c65a1b060a2dda037eea09a672
Linux Linux 3.11

References