What’s Vulnerable › Vulnerabilities

CVE-2021-47234: phy: phy-mtk-tphy: Fix some resource leaks in mtk_phy_init()

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-21 · updated 2026-06-17
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: phy: phy-mtk-tphy: Fix some resource leaks in mtk_phy_init() Use clk_disable_unprepare() in the error path of mtk_phy_init() to fix some resource leaks.

Affected products

• Linux kernel: before 5.10.46; from 5.11 before 5.12.13; 5.13-rc1, 5.13-rc2, 5.13-rc3, 5.13-rc4, 5.13-rc5 — fixed in 5.10.46, 5.12.13

How to fix

Upgrade to a fixed version: Linux kernel 5.10.46, 5.12.13. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/6472955af5e88b5489b6d78316082ad56ea3e489
• https://git.kernel.org/stable/c/9a17907946232d01aa2ec109da5f93b8d31dd425
• https://git.kernel.org/stable/c/aaac9a1bd370338ce372669eb9a6059d16b929aa
• https://git.kernel.org/stable/c/6472955af5e88b5489b6d78316082ad56ea3e489
• https://git.kernel.org/stable/c/9a17907946232d01aa2ec109da5f93b8d31dd425
• https://git.kernel.org/stable/c/aaac9a1bd370338ce372669eb9a6059d16b929aa

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