CVE-2026-43150

A flaw was found in the Linux kernel. This vulnerability occurs when the kernel's perf/arm-cmn component encounters unsupported hardware configurations, such as unknown Coherent Mesh Network (CMN) models or revisions. The kernel makes assumptions about hardware sizes, and if these are violated, it can lead to array overflows. This could result in memory corruption, potentially affecting system stability and integrity.

Red Hat acknowledges the upstream Linux kernel correction for «perf/arm-cmn» 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.