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Vulnerability · Published Jul 25, 2025 · Assigned by Linux

CVE-2025-38421platform/x86/amd: pmf: Use device managed allocations

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 15% 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 85.5% 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: platform/x86/amd: pmf: Use device managed allocations If setting up smart PC fails for any reason then this can lead to a double free when unloading amd-pmf. This is because dev->buf was freed but never set to NULL and is again freed in amd_pmf_remove(). To avoid subtle allocation bugs in failures leading to a double free change all allocations into device managed allocations.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:13linux6.12.115-2DEBIAN-CVE-2025-38421
Debian:14linux6.16.3-1DEBIAN-CVE-2025-38421
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-38421
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-38421
Ubuntu:24.04:LTSlinux-aws-6.146.14.0-1015.15~24.04.1UBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2025-38421
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-38421
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2025-38421
Ubuntu:24.04:LTSlinux-azure-6.146.14.0-1014.14~24.04.1UBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2025-38421
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2025-38421
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-38421
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2025-38421
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2025-38421
Ubuntu:24.04:LTSlinux-azure-nvidia-6.146.14.0-1007.7UBUNTU-CVE-2025-38421
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-38421
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2025-38421
Ubuntu:24.04:LTSlinux-gcp-6.146.14.0-1018.19~24.04.1UBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2025-38421
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2025-38421
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-38421
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2025-38421
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-38421
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-38421
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2025-38421
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2025-38421
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2025-38421
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2025-38421
Ubuntu:24.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-38421
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2025-38421
Ubuntu:24.04:LTSlinux-oem-6.146.14.0-1014.14UBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-38421
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2025-38421
Ubuntu:24.04:LTSlinux-oracle-6.146.14.0-1015.15~24.04.1UBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2025-38421
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2025-38421
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-38421
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-38421
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-38421
Ubuntu:24.04:LTSlinux-riscv-6.146.14.0-34.34.1~24.04.1UBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-38421
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-38421
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2025-38421
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2025-38421

Affected products (as reported)

VendorProductVersions
Linux Linux e70b4b8f93d7fcf8ee063a1d1f18782c4da3d335 – before d6a38e1a82d2f9abd0bae84a354654bccb8389f65b1122fc4995f308b21d7cfc64ef9880ac834d20 – before 0d10b532f861253c283863522d59d099fcb0796d5b1122fc4995f308b21d7cfc64ef9880ac834d20 – before d9db3a941270d92bbd1a6a6b54a10324484f2f2d3ed60e51ffdbfef14169bd967e21a6ba5e5ff42b6.12.23 – before 6.12.1146.13.11 – before 6.14
Linux Linux 6.14

References