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Vulnerability · Published Jul 25, 2025 · Assigned by Linux

CVE-2025-38408genirq/irq_sim: Initialize work context pointers properly

High 7.8

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 0.2% (higher than 10% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.2%top 89.8% 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: genirq/irq_sim: Initialize work context pointers properly Initialize `ops` member's pointers properly by using kzalloc() instead of kmalloc() when allocating the simulation work context. Otherwise the pointers contain random content leading to invalid dereferencing.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.162-1DSA-6127-1
Debian:12linux6.1.162-1DEBIAN-CVE-2025-38408
Debian:13linux6.12.37-1DEBIAN-CVE-2025-38408
Debian:14linux6.12.37-1DEBIAN-CVE-2025-38408
Ubuntu:22.04:LTSlinux5.15.0-176.186UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux5.15.0-176.186USN-8180-1
Ubuntu:24.04:LTSlinux6.8.0-100.100UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-aws5.15.0-1105.112USN-8180-1
Ubuntu:22.04:LTSlinux-aws5.15.0-1105.112UBUNTU-CVE-2025-38408
Ubuntu:24.04:LTSlinux-aws6.8.0-1046.49UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-38408
Ubuntu:24.04:LTSlinux-aws-6.146.14.0-1015.15~24.04.1UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1046.49~22.04.1UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-azure5.15.0-1110.119UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-azure5.15.0-1110.119USN-8180-3
Ubuntu:24.04:LTSlinux-azure6.8.0-1046.52UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-38408
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2025-38408
Ubuntu:24.04:LTSlinux-azure-6.146.14.0-1014.14~24.04.1UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1051.57~22.04.1UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1114.123UBUNTU-CVE-2025-38408
Ubuntu:24.04:LTSlinux-azure-fde6.8.0-1046.53UBUNTU-CVE-2025-38408
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-azure-fde-6.86.8.0-1046.53~22.04.1UBUNTU-CVE-2025-38408
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2025-38408
Ubuntu:24.04:LTSlinux-azure-nvidia-6.146.14.0-1007.7UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-gcp5.15.0-1105.114UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-gcp5.15.0-1105.114USN-8180-1
Ubuntu:24.04:LTSlinux-gcp6.8.0-1047.50UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-38408
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2025-38408
Ubuntu:24.04:LTSlinux-gcp-6.146.14.0-1018.19~24.04.1UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1047.50~22.04.2UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-gke5.15.0-1101.107UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-gke5.15.0-1101.107USN-8180-1
Ubuntu:24.04:LTSlinux-gke6.8.0-1043.48UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1088.96UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1088.96USN-8180-1
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1030.33UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-38408
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-100.100~22.04.1UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-ibm5.15.0-1099.102UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-ibm5.15.0-1099.102USN-8180-5
Ubuntu:24.04:LTSlinux-ibm6.8.0-1044.44UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1044.44~22.04.1UBUNTU-CVE-2025-38408
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1100.106USN-8180-3
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1100.106UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-kvm5.15.0-1097.102USN-8180-3
Ubuntu:22.04:LTSlinux-kvm5.15.0-1097.102UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-175.185UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-175.185USN-8180-1
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-100.100.1UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-38408
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-100.100.1~22.04.1UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1100.101UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1100.101USN-8180-1
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1046.49UBUNTU-CVE-2025-38408
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1046.49~22.04.1UBUNTU-CVE-2025-38408
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1046.49.1UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1057.57UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1057.57USN-8187-1
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1020.20UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1046.46UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1046.46USN-8187-1
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-38408
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2025-38408
Ubuntu:24.04:LTSlinux-oem-6.146.14.0-1014.14UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-38408
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-oracle5.15.0-1102.108USN-8180-1
Ubuntu:22.04:LTSlinux-oracle5.15.0-1102.108UBUNTU-CVE-2025-38408
Ubuntu:24.04:LTSlinux-oracle6.8.0-1043.44UBUNTU-CVE-2025-38408
Ubuntu:24.04:LTSlinux-oracle-6.146.14.0-1015.15~24.04.1UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1043.44~22.04.1UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-raspi5.15.0-1099.102UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-raspi5.15.0-1099.102USN-8180-6
Ubuntu:24.04:LTSlinux-raspi6.8.0-1047.51UBUNTU-CVE-2025-38408
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-38408
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-38408
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-38408
Ubuntu:24.04:LTSlinux-riscv-6.146.14.0-34.34.1~24.04.1UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-100.100~22.04.1UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-38408
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1023.24UBUNTU-CVE-2025-38408
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1070.74USN-8275-1
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1070.74UBUNTU-CVE-2025-38408

Affected products (as reported)

VendorProductVersions
Linux Linux 337cbeb2c13eb4cab84f576fd402d7ae4ed31ae1 – before 186df821de0f34490ed5fc0861243748b2483861337cbeb2c13eb4cab84f576fd402d7ae4ed31ae1 – before c71aa4bb528ae6f8fd7577a0a39e5a03c60b04fb337cbeb2c13eb4cab84f576fd402d7ae4ed31ae1 – before ec3656a8cb428d763def32bc2fa695f94be23629337cbeb2c13eb4cab84f576fd402d7ae4ed31ae1 – before 19bd7597858dd15802c1d99fcc38e528f469080a337cbeb2c13eb4cab84f576fd402d7ae4ed31ae1 – before 7f73d1def72532bac4d55ea8838f457a6bed955c337cbeb2c13eb4cab84f576fd402d7ae4ed31ae1 – before 8a2277a3c9e4cc5398f80821afe7ecbe9bdf2819
Linux Linux 5.8

References