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Vulnerability · Published Jan 13, 2026 · Assigned by Linux

CVE-2025-71071iommu/mediatek: fix use-after-free on probe deferral

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 0.1% (higher than 4% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)7.8High
Exploit odds (30 days)0.1%top 95.8% 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 use-after-free on probe deferral The driver is dropping the references taken to the larb devices during probe after successful lookup as well as on errors. This can potentially lead to a use-after-free in case a larb device has not yet been bound to its driver so that the iommu driver probe defers. Fix this by keeping the references as expected while the iommu driver is bound.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.162-1DEBIAN-CVE-2025-71071
Debian:13linux6.12.69-1DEBIAN-CVE-2025-71071
Debian:14linux6.18.3-1DEBIAN-CVE-2025-71071
Ubuntu:24.04:LTSlinux6.8.0-110.110UBUNTU-CVE-2025-71071
Ubuntu:25.10linux6.17.0-22.22UBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-aws6.8.0-1052.55UBUNTU-CVE-2025-71071
Ubuntu:25.10linux-aws6.17.0-1012.12UBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-aws-6.176.17.0-1012.12~24.04.1UBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1052.55~22.04.1UBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-azure6.8.0-1054.60UBUNTU-CVE-2025-71071
Ubuntu:25.10linux-azure6.17.0-1013.13UBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-azure-6.176.17.0-1013.13~24.04.1UBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1059.65~22.04.1UBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-azure-fde6.8.0-1058.65UBUNTU-CVE-2025-71071
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-azure-fde-6.86.8.0-1058.65~22.04.1UBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-gcp6.8.0-1054.57UBUNTU-CVE-2025-71071
Ubuntu:25.10linux-gcp6.17.0-1012.12UBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-gcp-6.176.17.0-1012.12~24.04.1UBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1054.57~22.04.1UBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-gke6.8.0-1050.56UBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1037.40UBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-hwe-6.176.17.0-22.22~24.04.1UBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-110.110~22.04.1UBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-ibm6.8.0-1051.51UBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1051.51~22.04.1UBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-110.110.1UBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-110.110.1~22.04.1UBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1051.54UBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-nvidia-6.176.17.0-1018.18UBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1051.54~22.04.1UBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1051.54.1UBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1022.22UBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-oem-6.176.17.0-1020.20UBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-oracle6.8.0-1049.50UBUNTU-CVE-2025-71071
Ubuntu:25.10linux-oracle6.17.0-1011.11UBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-oracle-6.176.17.0-1011.11~24.04.1UBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1049.50~22.04.1UBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-raspi6.8.0-1052.56UBUNTU-CVE-2025-71071
Ubuntu:25.10linux-raspi6.17.0-1013.13UBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-71071
Ubuntu:25.10linux-realtime6.17.0-1010.11UBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-71071
Ubuntu:25.10linux-riscv6.17.0-22.22.1UBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-riscv-6.176.17.0-22.22.1~24.04.1UBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-110.110~22.04.1UBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-71071
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-71071
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1028.29UBUNTU-CVE-2025-71071

Affected products (as reported)

VendorProductVersions
Linux Linux 8412e5dd24ffc8bc21a00bfaa0b80d4596cdc9da – before 896ec55da3b90bdb9fc04fedc17ad8c359b2eee526593928564cf5b576ff05d3cbd958f57c9534bb – before 5c04217d06a1161aaf36267e9d971ab6f847d5a726593928564cf5b576ff05d3cbd958f57c9534bb – before 1ef70a0b104ae8011811f60bcfaa55ff4938517126593928564cf5b576ff05d3cbd958f57c9534bb – before f6c08d3aa441bbc1956e9d65f1cbb89113a5aa8a26593928564cf5b576ff05d3cbd958f57c9534bb – before de83d4617f9fe059623e97acf7e1e10d209625b551080de72e26771f0ed9d44982974279ccbc92b86.1.2 – before 6.1.1606.0.16 – before 6.1
Linux Linux 6.2

References