CVE-2026-80649: firmware: arm_scmi: Fix OOB in scmi_power_name_get()

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: 2026-08-28 · updated 2026-08-29

Description

In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scmi: Fix OOB in scmi_power_name_get() scmi_power_name_get() does not validate the domain number passed by the external caller, which may lead to an out-of-bounds access. Fix this by returning "unknown" for invalid domains, like scmi_reset_name_get() does.

Affected products

Linux kernel: 4.17 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/01613f5e4ff6c080260615392338e92e261d109b
https://git.kernel.org/stable/c/0db2bb3c948ef8b7364768554d6ab5e1544dc441
https://git.kernel.org/stable/c/11bb771f3c55b4cef3879e69da4ddecd6085569c
https://git.kernel.org/stable/c/11daac2817dca75e3eabb2050bc620c29e686fcd
https://git.kernel.org/stable/c/30aa348494531adfb043b2e883afc0439e5fcdca
https://git.kernel.org/stable/c/ca94597440fa546e56293abe9d0af6c73535d44e
https://git.kernel.org/stable/c/f9ef3f66f4b18078e464b7606f9497e4dbeb9905

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