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Vulnerability · Published Feb 14, 2026 · Assigned by Linux

CVE-2026-23137of: unittest: Fix memory leak in unittest_data_add()

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 7% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 92.9% 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: of: unittest: Fix memory leak in unittest_data_add() In unittest_data_add(), if of_resolve_phandles() fails, the allocated unittest_data is not freed, leading to a memory leak. Fix this by using scope-based cleanup helper __free(kfree) for automatic resource cleanup. This ensures unittest_data is automatically freed when it goes out of scope in error paths. For the success path, use retain_and_null_ptr() to transfer ownership of the memory to the device tree and prevent double freeing.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linuxno fix listedDEBIAN-CVE-2026-23137
Debian:13linux6.12.111-1DEBIAN-CVE-2026-23137
Debian:14linux6.18.8-1DEBIAN-CVE-2026-23137
Debian:12linux-6.126.12.111-1~deb12u1DEBIAN-CVE-2026-23137
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2026-23137
Ubuntu:25.10linuxno fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-23137
Ubuntu:25.10linux-awsno fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-23137
Ubuntu:25.10linux-azureno fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-azure-6.176.17.0-1021.21~24.04.1UBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-23137
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-azure-fde-6.176.17.0-1018.18~24.04.1UBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-23137
Ubuntu:25.10linux-gcpno fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-gcp-6.176.17.0-1021.24~24.04.1UBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-hwe-6.176.17.0-41.41~24.04.1UBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-nvidia-6.176.17.0-1031.31UBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-oem-6.176.17.0-1030.30UBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-23137
Ubuntu:25.10linux-oracleno fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-oracle-6.176.17.0-1019.19~24.04.3UBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-23137
Ubuntu:25.10linux-raspino fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-23137
Ubuntu:25.10linux-realtimeno fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-23137
Ubuntu:25.10linux-riscvno fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2026-23137
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2026-23137
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2026-23137

Affected products (as reported)

VendorProductVersions
Linux Linux 2eb46da2a760e5764c48b752a5ef320e02b96b21 – before 4bafaec9e3a784d103ab9da11095708fcca70e762eb46da2a760e5764c48b752a5ef320e02b96b21 – before 4c7ad40c285ab85e3614433e063f14aac2e2fe172eb46da2a760e5764c48b752a5ef320e02b96b21 – before 58baf98d1bdab897fd796f39a16061bade229d712eb46da2a760e5764c48b752a5ef320e02b96b21 – before f09b0f705bd7197863b90256ef533a6414d1db2c2eb46da2a760e5764c48b752a5ef320e02b96b21 – before 235a1eb8d2dcc49a6cf0a5ee1aa85544a5d0054b
Linux Linux 3.18

References