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Vulnerability · Published May 6, 2026 · Assigned by Linux

CVE-2025-71272most: core: fix resource leak in most_register_interface error paths

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 5% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 94.6% 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: most: core: fix resource leak in most_register_interface error paths The function most_register_interface() did not correctly release resources if it failed early (before registering the device). In these cases, it returned an error code immediately, leaking the memory allocated for the interface. Fix this by initializing the device early via device_initialize() and calling put_device() on all error paths. The most_register_interface() is expected to call put_device() on error which frees the resources allocated in the caller. The put_device() either calls release_mdev() or dim2_release(), depending on the caller. Switch to using device_add() instead of device_register() to handle the split initialization.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linuxno fix listedDEBIAN-CVE-2025-71272
Debian:13linux6.12.85-1DEBIAN-CVE-2025-71272
Debian:14linux6.19.6-1DEBIAN-CVE-2025-71272
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux6.8.0-134.134USN-8492-1
Ubuntu:24.04:LTSlinux6.8.0-134.134UBUNTU-CVE-2025-71272
Ubuntu:25.10linuxno fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-aws6.8.0-1060.63UBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-aws6.8.0-1060.63USN-8492-1
Ubuntu:25.10linux-awsno fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1060.63~22.04.1UBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1060.63~22.04.1USN-8492-2
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-azure6.8.0-1063.71UBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-azure6.8.0-1063.71USN-8606-1
Ubuntu:25.10linux-azureno fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1063.71~22.04.1USN-8606-1
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1063.71~22.04.1UBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-azure-fde6.8.0-1062.69USN-8607-1
Ubuntu:24.04:LTSlinux-azure-fde6.8.0-1062.69UBUNTU-CVE-2025-71272
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-azure-fde-6.86.8.0-1062.69~22.04.1UBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-azure-fde-6.86.8.0-1062.69~22.04.1USN-8609-1
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-gcp6.8.0-1063.69USN-8492-1
Ubuntu:24.04:LTSlinux-gcp6.8.0-1063.69UBUNTU-CVE-2025-71272
Ubuntu:25.10linux-gcpno fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1063.69~22.04.1UBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1063.69~22.04.1USN-8492-2
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-gke6.8.0-1058.64UBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-gke6.8.0-1058.64USN-8492-2
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1045.48UBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1045.48USN-8492-2
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-136.136~22.04.1UBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-136.136~22.04.1USN-8619-1
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-ibm6.8.0-1060.61UBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-ibm6.8.0-1060.61USN-8492-1
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1060.61~22.04.1USN-8492-2
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1060.61~22.04.1UBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-134.134.1UBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-134.134.1USN-8497-1
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-134.134.1~22.04.1USN-8497-1
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-134.134.1~22.04.1UBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1058.61USN-8492-1
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1058.61UBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1058.61~22.04.1USN-8492-1
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1058.61~22.04.1UBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1058.61.1USN-8492-2
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1058.61.1UBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1029.30UBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1029.30USN-8498-1
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-oracle6.8.0-1057.58USN-8492-1
Ubuntu:24.04:LTSlinux-oracle6.8.0-1057.58UBUNTU-CVE-2025-71272
Ubuntu:25.10linux-oracleno fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1057.58~22.04.1USN-8492-2
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1057.58~22.04.1UBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-raspi6.8.0-1060.64UBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-raspi6.8.0-1060.64USN-8492-4
Ubuntu:25.10linux-raspino fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-71272
Ubuntu:25.10linux-realtimeno fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-71272
Ubuntu:25.10linux-riscvno fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-134.134~22.04.1UBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-71272
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1032.33UBUNTU-CVE-2025-71272
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2025-71272

Affected products (as reported)

VendorProductVersions
Linux Linux 723de0f9171eeb49a3ae98cae82ebbbb992b3a7c – before 82f42a13e3d7a07a950ee4fa2d4c74843a3e7ace723de0f9171eeb49a3ae98cae82ebbbb992b3a7c – before a49028a796d7b94f8e3ab9bd34b18f36be235459723de0f9171eeb49a3ae98cae82ebbbb992b3a7c – before af0b99b2214a10554adb5b868240d23af6e64e71723de0f9171eeb49a3ae98cae82ebbbb992b3a7c – before 2f483f3817fb0e4209ac5de928778b1da0cc8574723de0f9171eeb49a3ae98cae82ebbbb992b3a7c – before 1f4c9d8a1021281750c6cda126d6f8a40cc24e71
Linux Linux 5.6

References