764 static void *copy_array(void *dst, const void *src, size_t n, size_t size, gfp_t flags)  in copy_array()  argument
774 	if (ksize(dst) < bytes) {  in copy_array()
775 		kfree(dst);  in copy_array()
776 		dst = kmalloc_track_caller(bytes, flags);  in copy_array()
777 		if (!dst)  in copy_array()
781 	memcpy(dst, src, bytes);  in copy_array()
783 	return dst ? dst : ZERO_SIZE_PTR;  in copy_array()
812 static int copy_reference_state(struct bpf_func_state *dst, const struct bpf_func_state *src)  in copy_reference_state()  argument
814 	dst->refs = copy_array(dst->refs, src->refs, src->acquired_refs,  in copy_reference_state()
816 	if (!dst->refs)  in copy_reference_state()
819 	dst->acquired_refs = src->acquired_refs;  in copy_reference_state()
823 static int copy_stack_state(struct bpf_func_state *dst, const struct bpf_func_state *src)  in copy_stack_state()  argument
827 	dst->stack = copy_array(dst->stack, src->stack, n, sizeof(struct bpf_stack_state),  in copy_stack_state()
829 	if (!dst->stack)  in copy_stack_state()
832 	dst->allocated_stack = src->allocated_stack;  in copy_stack_state()
939 static int copy_func_state(struct bpf_func_state *dst,  in copy_func_state()  argument
944 	memcpy(dst, src, offsetof(struct bpf_func_state, acquired_refs));  in copy_func_state()
945 	err = copy_reference_state(dst, src);  in copy_func_state()
948 	return copy_stack_state(dst, src);  in copy_func_state()
954 	struct bpf_func_state *dst;  in copy_verifier_state()  local
977 		dst = dst_state->frame[i];  in copy_verifier_state()
978 		if (!dst) {  in copy_verifier_state()
979 			dst = kzalloc(sizeof(*dst), GFP_KERNEL);  in copy_verifier_state()
980 			if (!dst)  in copy_verifier_state()
982 			dst_state->frame[i] = dst;  in copy_verifier_state()
984 		err = copy_func_state(dst, src->frame[i]);  in copy_verifier_state()
2792 static void copy_register_state(struct bpf_reg_state *dst, const struct bpf_reg_state *src)  in copy_register_state()  argument
2794 	struct bpf_reg_state *parent = dst->parent;  in copy_register_state()
2795 	enum bpf_reg_liveness live = dst->live;  in copy_register_state()
2797 	*dst = *src;  in copy_register_state()
2798 	dst->parent = parent;  in copy_register_state()
2799 	dst->live = live;  in copy_register_state()
7147 	u32 dst = insn->dst_reg, src = insn->src_reg;  in sanitize_err()  local
7152 			off_reg == dst_reg ? dst : src, err);  in sanitize_err()
7156 			off_reg == dst_reg ? src : dst, err);  in sanitize_err()
7160 			dst, op, err);  in sanitize_err()
7164 			dst, op, err);  in sanitize_err()
7168 			dst, err);  in sanitize_err()
7217 	u32 dst = insn->dst_reg;  in sanitize_check_bounds()  local
7227 		if (check_stack_access_for_ptr_arithmetic(env, dst, dst_reg,  in sanitize_check_bounds()
7232 		if (check_map_access(env, dst, dst_reg->off, 1, false)) {  in sanitize_check_bounds()
7234 				"prohibited for !root\n", dst);  in sanitize_check_bounds()
7265 	u32 dst = insn->dst_reg;  in adjust_ptr_min_max_vals()  local
7268 	dst_reg = &regs[dst];  in adjust_ptr_min_max_vals()
7288 			dst);  in adjust_ptr_min_max_vals()
7294 			dst, reg_type_str(env, ptr_reg->type));  in adjust_ptr_min_max_vals()
7315 			dst, reg_type_str(env, ptr_reg->type));  in adjust_ptr_min_max_vals()
7398 				dst);  in adjust_ptr_min_max_vals()
7407 				dst);  in adjust_ptr_min_max_vals()
7459 			dst, bpf_alu_string[opcode >> 4]);  in adjust_ptr_min_max_vals()
7464 			dst, bpf_alu_string[opcode >> 4]);  in adjust_ptr_min_max_vals()