What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-01 · updated 2026-06-17

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.

Affected products

• Linux kernel: from 4.10 before 5.10.253; from 5.11 before 5.15.203; from 5.16 before 6.1.168; from 6.2 before 6.6.134; from 6.7 before 6.12.81; from 6.13 before 6.18.22 — fixed in 5.10.253, 5.15.203, 6.1.168, 6.12.81, 6.18.22, 6.19.12

How to fix

Upgrade to a fixed version: Linux kernel 5.10.253, 5.15.203, 6.1.168, 6.12.81. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/015aa24d3721a05b40935b8af78b49cadf616b8d
• https://git.kernel.org/stable/c/5392a5174df4f5a2fad2f00e8c617394d0efe031
• https://git.kernel.org/stable/c/54c6f0e7682433abed0304ac2f5cb71a92d4b366
• https://git.kernel.org/stable/c/6ec567425c057fd850651ee09b31d059ef960e0f
• https://git.kernel.org/stable/c/e1f6f47d6e60d51c3294e5b85787e9aee24c450e
• https://git.kernel.org/stable/c/e35dbfdb1b7710f04ff5c9972ea04971d823a22d
• https://git.kernel.org/stable/c/ec1be2ce0d94506f11b22066fd6dc5eb4341b14f
• https://git.kernel.org/stable/c/f0f367a4f459cc8118aadc43c6bba53c60d93f8d

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