CVE-2026-93085

In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scmi: Reject out of range DT protocol IDs SCMI protocol IDs carried in message headers are limited by MSG_PROTOCOL_ID_MASK. The DT parsing paths noticed protocol IDs outside that range, but only logged an error and then kept processing the invalid value. That lets a malformed 32-bit DT reg value reach helpers which take a u8 protocol ID, where it can be truncated and/or treated as a different protocol. For channel setup, two different out-of-range values can also be used as distinct IDR keys while aliasing the generated SCMI protocol identity. Skip DT protocol nodes whose reg value does not fit the SCMI protocol ID field before setting up channels or creating protocol devices.

CVSS

No CVSS.

References

Link	Resource
https://git.kernel.org/stable/c/0b6e59eb885f985a5ea7beed385adfa9412b324d
https://git.kernel.org/stable/c/5142fd31bd8c9aff9bad4f6e0cc20e9574f2cee1
https://git.kernel.org/stable/c/59407ccb52130f2c81f4b3cbe4f14114afceb54f
https://git.kernel.org/stable/c/8eb2ab209570526728b35e39c4aecdb5099fbaf7
https://git.kernel.org/stable/c/e66756313d1b4eadd13f39a0aee9fc8773d4d375

Configurations

No configuration.

History

17 Sep 2026, 17:18

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-17 17:18

Updated : 2026-09-17 17:18

NVD link : CVE-2026-93085

Mitre link : CVE-2026-93085

CVE.ORG link : CVE-2026-93085

JSON object : View

Products Affected

No product.

CWE

No CWE.

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