CVE-2026-64451

A flaw was found in the Linux kernel's tracing subsystem. A local user, by manipulating function tracer options, can trigger a NULL pointer dereference in the func_set_flag() function. This vulnerability occurs when the active tracer is switched away from the function tracer while a process has an option file for it open, leading to a kernel crash and a denial of service.

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.