CVE-2026-93085 | BDVDB-2026-376405 Detail
LinuxLinux
Description#
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.
Impact#
No impact statement in the source data.
Weaknesses#
No weakness recorded in the source data.
References#
- https://git.kernel.org/stable/c/75d6273a28cdb543a167ac5fbfca75dc286ffe10
- https://git.kernel.org/stable/c/8eb2ab209570526728b35e39c4aecdb5099fbaf7
- https://git.kernel.org/stable/c/5142fd31bd8c9aff9bad4f6e0cc20e9574f2cee1
- https://git.kernel.org/stable/c/e66756313d1b4eadd13f39a0aee9fc8773d4d375
- https://git.kernel.org/stable/c/0b6e59eb885f985a5ea7beed385adfa9412b324d
- https://git.kernel.org/stable/c/59407ccb52130f2c81f4b3cbe4f14114afceb54f
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.