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Vulnerability · Published May 1, 2025 · Assigned by Linux

CVE-2025-37748iommu/mediatek: Fix NULL pointer deference in mtk_iommu_device_group

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 9% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 91.5% 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: iommu/mediatek: Fix NULL pointer deference in mtk_iommu_device_group Currently, mtk_iommu calls during probe iommu_device_register before the hw_list from driver data is initialized. Since iommu probing issue fix, it leads to NULL pointer dereference in mtk_iommu_device_group when hw_list is accessed with list_first_entry (not null safe). So, change the call order to ensure iommu_device_register is called after the driver data are initialized.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.135-1DEBIAN-CVE-2025-37748
Debian:13linux6.12.25-1DEBIAN-CVE-2025-37748
Debian:14linux6.12.25-1DEBIAN-CVE-2025-37748
Ubuntu:24.04:LTSlinux6.8.0-100.100UBUNTU-CVE-2025-37748
Ubuntu:24.04:LTSlinux6.8.0-100.100USN-8028-1
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-37748
Ubuntu:24.04:LTSlinux-aws6.8.0-1046.49USN-8028-5
Ubuntu:24.04:LTSlinux-aws6.8.0-1046.49UBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1046.49~22.04.1USN-8028-5
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1046.49~22.04.1UBUNTU-CVE-2025-37748
Ubuntu:24.04:LTSlinux-azure6.8.0-1046.52UBUNTU-CVE-2025-37748
Ubuntu:24.04:LTSlinux-azure6.8.0-1046.52USN-8074-1
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-37748
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1051.57~22.04.1UBUNTU-CVE-2025-37748
Ubuntu:24.04:LTSlinux-azure-fde6.8.0-1046.53UBUNTU-CVE-2025-37748
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-azure-fde-6.86.8.0-1046.53~22.04.1UBUNTU-CVE-2025-37748
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2025-37748
Ubuntu:24.04:LTSlinux-gcp6.8.0-1047.50UBUNTU-CVE-2025-37748
Ubuntu:24.04:LTSlinux-gcp6.8.0-1047.50USN-8031-3
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-37748
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1047.50~22.04.2UBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1047.50~22.04.2USN-8031-1
Ubuntu:24.04:LTSlinux-gke6.8.0-1043.48USN-8031-3
Ubuntu:24.04:LTSlinux-gke6.8.0-1043.48UBUNTU-CVE-2025-37748
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1030.33UBUNTU-CVE-2025-37748
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1030.33USN-8028-5
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-37748
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-100.100~22.04.1USN-8028-6
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-100.100~22.04.1UBUNTU-CVE-2025-37748
Ubuntu:24.04:LTSlinux-ibm6.8.0-1044.44USN-8028-8
Ubuntu:24.04:LTSlinux-ibm6.8.0-1044.44UBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1044.44~22.04.1USN-8028-8
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1044.44~22.04.1UBUNTU-CVE-2025-37748
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-37748
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-100.100.1UBUNTU-CVE-2025-37748
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-100.100.1USN-8052-1
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-37748
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-100.100.1~22.04.1USN-8028-6
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-100.100.1~22.04.1UBUNTU-CVE-2025-37748
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1046.49USN-8028-5
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1046.49UBUNTU-CVE-2025-37748
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1046.49~22.04.1USN-8028-5
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1046.49~22.04.1UBUNTU-CVE-2025-37748
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1046.49.1UBUNTU-CVE-2025-37748
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1046.49.1USN-8028-7
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1020.20UBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-37748
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-37748
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2025-37748
Ubuntu:24.04:LTSlinux-oracle6.8.0-1043.44USN-8028-5
Ubuntu:24.04:LTSlinux-oracle6.8.0-1043.44UBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1043.44~22.04.1UBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1043.44~22.04.1USN-8028-5
Ubuntu:24.04:LTSlinux-raspi6.8.0-1047.51USN-8028-1
Ubuntu:24.04:LTSlinux-raspi6.8.0-1047.51UBUNTU-CVE-2025-37748
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-37748
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-37748
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-100.100~22.04.1UBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-37748
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-37748
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1023.24USN-8052-2
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1023.24UBUNTU-CVE-2025-37748

Affected products (as reported)

VendorProductVersions
Linux Linux 9e3a2a64365318a743e3c0b028952d2cdbaf2b0c – before 2f75cb27bef43c8692b0f5e471e5632f6a9beb999e3a2a64365318a743e3c0b028952d2cdbaf2b0c – before 6abd09bed43b8d83d461e0fb5b9a200a06aa8a279e3a2a64365318a743e3c0b028952d2cdbaf2b0c – before a0842539e8ef9386c070156103aff888e558a60c9e3a2a64365318a743e3c0b028952d2cdbaf2b0c – before ce7d3b2f6f393fa35f0ea12861b83a1ca28b295c9e3a2a64365318a743e3c0b028952d2cdbaf2b0c – before 69f9d2d37d1207c5a73dac52a4ce1361ead707f59e3a2a64365318a743e3c0b028952d2cdbaf2b0c – before 38e8844005e6068f336a3ad45451a562a0040ca1
Linux Linux 5.19

References