CVE-2026-53121: In the Linux kernel, the following vulnerability has been resolved: amd-pstate: Fix memory leak in amd_pstate_epp_cpu_i

A memory leak (wasted memory that isn't returned to the system) was found in the Linux kernel's amd-pstate driver, specifically in the amd_pstate_epp_cpu_init() function. When the function fails to set the epp (energy performance preference, a CPU power setting), it exits without freeing the cpudata object (a block of memory storing CPU information) that was created at the start.