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Vulnerability · Published Apr 3, 2024 · Assigned by Linux

CVE-2024-26691KVM: arm64: Fix circular locking dependency

Medium 5.5

In plain English

A medium-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 0.2% (higher than 8% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 92.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Fix circular locking dependency The rule inside kvm enforces that the vcpu->mutex is taken *inside* kvm->lock. The rule is violated by the pkvm_create_hyp_vm() which acquires the kvm->lock while already holding the vcpu->mutex lock from kvm_vcpu_ioctl(). Avoid the circular locking dependency altogether by protecting the hyp vm handle with the config_lock, much like we already do for other forms of VM-scoped data.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linuxno fix listedDEBIAN-CVE-2024-26691
Debian:13linux6.7.7-1DEBIAN-CVE-2024-26691
Debian:14linux6.7.7-1DEBIAN-CVE-2024-26691
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-aws-6.56.5.0-1023.23~22.04.1USN-6895-3
Ubuntu:22.04:LTSlinux-aws-6.56.5.0-1023.23~22.04.1UBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-azure-6.56.5.0-1024.25~22.04.1USN-6895-2
Ubuntu:22.04:LTSlinux-azure-6.56.5.0-1024.25~22.04.1UBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-gcp-6.56.5.0-1024.26~22.04.1USN-6895-2
Ubuntu:22.04:LTSlinux-gcp-6.56.5.0-1024.26~22.04.1UBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-hwe-6.56.5.0-44.44~22.04.1UBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-hwe-6.56.5.0-44.44~22.04.1USN-6900-1
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.56.5.0-44.44.1~22.04.1UBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.56.5.0-44.44.1~22.04.1USN-6895-3
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-nvidia-6.56.5.0-1023.24USN-6895-1
Ubuntu:22.04:LTSlinux-nvidia-6.56.5.0-1023.24UBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-oem-6.56.5.0-1027.28USN-6895-4
Ubuntu:22.04:LTSlinux-oem-6.56.5.0-1027.28UBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-oracle-6.56.5.0-1026.26~22.04.1UBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-oracle-6.56.5.0-1026.26~22.04.1USN-6895-3
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-starfive-6.56.5.0-1017.18~22.04.1USN-6895-3
Ubuntu:22.04:LTSlinux-starfive-6.56.5.0-1017.18~22.04.1UBUNTU-CVE-2024-26691
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2024-26691

Affected products (as reported)

VendorProductVersions
Linux Linux 6211753fdfd05af9e08f54c8d0ba3ee516034878 – before 3d16cebf01127f459dcfeb79ed77bd68b124c2286211753fdfd05af9e08f54c8d0ba3ee516034878 – before 3ab1c40a1e915e350d9181a4603af393141970cc6211753fdfd05af9e08f54c8d0ba3ee516034878 – before 10c02aad111df02088d1a81792a709f6a7eca6cc
Linux Linux 3.11

References