CVE-2026-43143

A flaw was found in the Linux kernel's multi-function device (mfd) core module. The mfd_of_node_list lacked proper locking mechanisms, allowing for unsafe manipulation of the list. This concurrency issue could lead to system crashes, resulting in a Denial of Service (DoS).

Red Hat acknowledges the upstream Linux kernel correction for «mfd» as described in COMMENT_ZERO. Fixes are delivered through standard kernel errata for supported products. Operational exposure depends on whether this subsystem or driver is active in your configuration.

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.