CVE-2026-45909: clk: mediatek: Drop __initconst from gates

Severity: high (CVSS 7.8 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: 2026-05-27 · updated 2026-06-24

Description

In the Linux kernel, the following vulnerability has been resolved: clk: mediatek: Drop __initconst from gates Since commit 8ceff24a754a ("clk: mediatek: clk-gate: Refactor mtk_clk_register_gate to use mtk_gate struct") the mtk_gate structs are no longer just used for initialization/registration, but also at runtime. So drop __initconst annotations.

Affected products

Linux kernel: from 6.18 before 6.18.14; from 6.19 before 6.19.4 — fixed in 6.18.14, 6.19.4

How to fix

Upgrade to a fixed version: Linux kernel 6.18.14, 6.19.4. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/1debd9ba7eb18af8fb63dc93517c6bbcab0e31ee
https://git.kernel.org/stable/c/866d8ecc4e789f7d73d6cafd1b122d1b6032b3b1
https://git.kernel.org/stable/c/871afb43e41ad4e8246438de495a939cd0f8113c

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