CVE-2026-80649
Received Received - Intake

Linux Kernel OOB Access in SCMI Power Name

Publication date: 2026-08-28

Last updated on: 2026-08-28

Assigner: kernel.org

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.

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Meta Information

Published
2026-08-28
Last Modified
2026-08-28
Generated
2026-08-28
AI Q&A
2026-08-28
EPSS Evaluated
N/A
NVD
CVE-2026-80649
EUVD
EUVD-2026-67525

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *

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Exploitability

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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability is in the Linux kernel's ARM SCMI firmware implementation. It involves a function called scmi_power_name_get() that does not check if the domain number provided by an external caller is valid. This can lead to accessing memory outside the intended bounds, potentially causing system instability or crashes.

Detection Guidance

This vulnerability is specific to the Linux kernel's SCMI power management subsystem. Detection requires checking kernel logs for out-of-bounds access errors related to scmi_power_name_get(). Use commands like dmesg | grep -i scmi or journalctl -k | grep -i scmi to search for relevant errors.

Impact Analysis

This vulnerability could allow an attacker with access to the system to trigger an out-of-bounds memory access. This might result in system crashes, denial of service, or potentially privilege escalation if exploited successfully.

Mitigation Strategies

Update your Linux kernel to the latest patched version that includes the fix for CVE-2026-80649. If immediate patching is not possible, consider disabling the SCMI power management subsystem if not required, but this may impact system functionality.

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