CVE-2026-45925 thermal/of: Fix reference leak in thermal_of_cm_lookup()

What is CVE-2026-45925?

CVE-2026-45925 is a medium-severity memory corruption vulnerability in Linux kernel, published on 27 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

thermal/of: Fix reference leak in thermal_of_cm_lookup()

In thermal_of_cm_lookup(), tr_np is obtained via of_parse_phandle(), but never released.

Use the __free(device_node) cleanup attribute to automatically release the node and fix the leak.

[ rjw: Changelog edits ]

Which versions are affected by CVE-2026-45925?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2026-45925?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-45925 being exploited?

There is no known exploitation of CVE-2026-45925 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BELL-CVE-2026-45925, DEBIAN-CVE-2026-45925, GHSA-qjmr-5q33-8r6q, UBUNTU-CVE-2026-45925.