Log in Start free

Vulnerability · Published Feb 23, 2024 · Assigned by Linux

CVE-2024-26598KVM: arm64: vgic-its: Avoid potential UAF in LPI translation cache

High 8.8

In plain English

A high-severity use-after-free 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 15% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.2%top 84.9% 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: vgic-its: Avoid potential UAF in LPI translation cache There is a potential UAF scenario in the case of an LPI translation cache hit racing with an operation that invalidates the cache, such as a DISCARD ITS command. The root of the problem is that vgic_its_check_cache() does not elevate the refcount on the vgic_irq before dropping the lock that serializes refcount changes. Have vgic_its_check_cache() raise the refcount on the returned vgic_irq and add the corresponding decrement after queueing the interrupt.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.76-1DEBIAN-CVE-2024-26598
Debian:13linux6.6.15-1DEBIAN-CVE-2024-26598
Debian:14linux6.6.15-1DEBIAN-CVE-2024-26598
Ubuntu:22.04:LTSlinux5.15.0-102.112USN-6725-1
Ubuntu:22.04:LTSlinux5.15.0-102.112UBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-aws5.15.0-1057.63USN-6725-2
Ubuntu:22.04:LTSlinux-aws5.15.0-1057.63UBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-azure5.15.0-1060.69UBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-azure5.15.0-1060.69USN-6725-1
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-azure-6.56.5.0-1022.23~22.04.1UBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1060.69.1USN-6725-1
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1060.69.1UBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-gcp5.15.0-1055.63UBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-gcp5.15.0-1055.63USN-6725-1
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-gcp-6.56.5.0-1022.24~22.04.1UBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-gke5.15.0-1054.59UBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-gke5.15.0-1054.59USN-6725-1
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1040.46USN-6725-1
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1040.46UBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-hwe-6.56.5.0-41.41~22.04.2UBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-ibm5.15.0-1050.53USN-6725-1
Ubuntu:22.04:LTSlinux-ibm5.15.0-1050.53UBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1052.58USN-6725-1
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1052.58UBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-kvm5.15.0-1054.59UBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-kvm5.15.0-1054.59USN-6725-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-102.112USN-6725-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-102.112UBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.56.5.0-41.41.1~22.04.1UBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1048.48USN-6725-1
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1048.48UBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-nvidia-6.56.5.0-1021.22UBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1025.25UBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1012.12UBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-oem-6.16.1.0-1035.35UBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-oem-6.56.5.0-1024.25UBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-oracle5.15.0-1055.61USN-6725-1
Ubuntu:22.04:LTSlinux-oracle5.15.0-1055.61UBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-oracle-6.56.5.0-1024.24~22.04.1UBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-raspi5.15.0-1050.53USN-6725-1
Ubuntu:22.04:LTSlinux-raspi5.15.0-1050.53UBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-riscv-6.56.5.0-40.40.1~22.04.1UBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-starfive-6.56.5.0-1015.16~22.04.1UBUNTU-CVE-2024-26598
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1030.34UBUNTU-CVE-2024-26598

Affected products (as reported)

VendorProductVersions
Linux Linux 6211753fdfd05af9e08f54c8d0ba3ee516034878 – before d04acadb6490aa3314f9c9e087691e55de153b886211753fdfd05af9e08f54c8d0ba3ee516034878 – before ba7be666740847d967822bed15500656b26bc7036211753fdfd05af9e08f54c8d0ba3ee516034878 – before 12c2759ab1343c124ed46ba48f27bd1ef5d2dff46211753fdfd05af9e08f54c8d0ba3ee516034878 – before dba788e25f05209adf2b0175eb1691dc89fb1ba66211753fdfd05af9e08f54c8d0ba3ee516034878 – before 65b201bf3e9af1b0254243a5881390eda56f72d16211753fdfd05af9e08f54c8d0ba3ee516034878 – before dd3956a1b3dd11f46488c928cb890d6937d1ca806211753fdfd05af9e08f54c8d0ba3ee516034878 – before ad362fe07fecf0aba839ff2cc59a3617bd42c33f
Linux Linux 3.11

Weakness: CWE-416 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References