CVE-2026-90273

A flaw was found in the Coresight ETM4x component of the Linux kernel. This vulnerability occurs in the performance perf enable path due to missing calls to cscfgcsdevdisableactiveconfig when branch broadcast is unsupported or hardware enablement fails. This oversight can lead to a leak of...

Linux kernel security vulnerabilities

The Linux kernel contains a security vulnerability. It arises in the perf enable path: when a branch broadcast is selected but the hardware does not support it, or when etm4enablehw fails, the function cscfgcsdevdisableactiveconfig is not called, potentially leading to a leak of...