diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 06dc46b229bf..69286f80f378 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -4000,7 +4000,7 @@ static const struct bpf_reg_types const_map_ptr_types = { .types = { CONST_PTR_T
 static const struct bpf_reg_types btf_ptr_types = { .types = { PTR_TO_BTF_ID } };
 static const struct bpf_reg_types spin_lock_types = { .types = { PTR_TO_MAP_VALUE } };
 
-static const struct bpf_reg_types *compatible_reg_types[] = {
+static const struct bpf_reg_types *compatible_reg_types[__BPF_ARG_TYPE_MAX] = {
 	[ARG_PTR_TO_MAP_KEY]		= &map_key_value_types,
 	[ARG_PTR_TO_MAP_VALUE]		= &map_key_value_types,
 	[ARG_PTR_TO_UNINIT_MAP_VALUE]	= &map_key_value_types,
@@ -4023,7 +4023,6 @@ static const struct bpf_reg_types *compatible_reg_types[] = {
 	[ARG_PTR_TO_ALLOC_MEM_OR_NULL]	= &alloc_mem_types,
 	[ARG_PTR_TO_INT]		= &int_ptr_types,
 	[ARG_PTR_TO_LONG]		= &int_ptr_types,
-	[__BPF_ARG_TYPE_MAX]		= NULL,
 };
 
 static int check_reg_type(struct bpf_verifier_env *env, u32 regno,