CVE-2023-52645: pmdomain: mediatek: fix race conditions with genpd

Severity: medium (CVSS 4.7 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: 2024-04-17 · updated 2026-06-17
Weakness: CWE-362

Description

In the Linux kernel, the following vulnerability has been resolved: pmdomain: mediatek: fix race conditions with genpd If the power domains are registered first with genpd and *after that* the driver attempts to power them on in the probe sequence, then it is possible that a race condition occurs if genpd tries to power them on in the same time. The same is valid for powering them off before unregistering them from genpd. Attempt to fix race conditions by first removing the domains from genpd and *after that* powering down domains. Also first power up the domains and *after that* register them to genpd.

Affected products

Linux kernel: from 5.11 before 5.15.150; from 5.16 before 6.1.80; from 6.2 before 6.6.18; from 6.7 before 6.7.6 — fixed in 5.15.150, 6.1.80, 6.6.18, 6.7.6

How to fix

Upgrade to a fixed version: Linux kernel 5.15.150, 6.1.80, 6.6.18, 6.7.6. Check the vendor advisory for mitigations.

References

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