CVE-2026-43014 net: macb: properly unregister fixed rate clocks

What is CVE-2026-43014?

CVE-2026-43014 is a medium-severity vulnerability in Linux kernel, published on 1 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:

net: macb: properly unregister fixed rate clocks

The additional resources allocated with clk_register_fixed_rate() need to be released with clk_unregister_fixed_rate(), otherwise they are lost.

Which versions are affected by CVE-2026-43014?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2026-43014?

Apply the vendor's patch.

Is CVE-2026-43014 being exploited?

There is no known exploitation of CVE-2026-43014 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-2026-43014, DEBIAN-CVE-2026-43014, GHSA-2h69-pcrh-6qpw, ROOT-OS-DEBIAN-11-CVE-2026-43014, ROOT-OS-UBUNTU-2204-CVE-2026-43014, ROOT-OS-UBUNTU-2404-CVE-2026-43014 and 1 more.