Out-of-bounds read in Linux kernel - CVE-2026-80649
Published: August 28, 2026
Vulnerability identifier: #VU146162
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-80649
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to disclose sensitive information or cause a denial of service.
The vulnerability exists due to out-of-bounds read in scmi_power_name_get() in the arm_scmi firmware driver when processing an externally supplied domain number. A local user can supply an invalid domain value to disclose sensitive information or cause a denial of service.
Affected software
Linux kernel
How to mitigate CVE-2026-80649
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3
External 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