CVE-2026-92506
kernel: firmware: arm_scmi: Fix requested device removal race
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 17, 2026
Updated · October 20, 2026
Description
A flaw was found in the Linux kernel's ARM System Control and Management Interface (SCMI) firmware. A race condition during device removal can occur when two SCMI drivers concurrently unregister for the same protocol. This can lead to a double-free vulnerability, where memory is freed twice, potentially resulting in memory corruption or a denial of service.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-1341 · Multiple Releases of Same Resource or Handle