In the Linux kernel, the following vulnerability has been resolved:[EOL][EOL]perf/smmuv3: Fix hotplug callback leak in arm_smmu_pmu_init()[EOL][EOL]arm_smmu_pmu_init() won't remove the callback added by[EOL]cpuhp_setup_state_multi() when platform_driver_register() failed. Remove[EOL]the callback by cpuhp_remove_multi_state() in fail path.[EOL][EOL]Similar to the handling of arm_ccn_init() in commit 26242b330093 ("bus:[EOL]arm-ccn: Prevent hotplug callback leak")