diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 753b2837318d..d517dd7f4ac7 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -4217,7 +4217,7 @@ static int packet_set_ring(struct sock *sk, union tpacket_req_u *req_u,
 		rb->frames_per_block = req->tp_block_size / req->tp_frame_size;
 		if (unlikely(rb->frames_per_block == 0))
 			goto out;
-		if (unlikely(req->tp_block_size > UINT_MAX / req->tp_block_nr))
+		if (unlikely(rb->frames_per_block > UINT_MAX / req->tp_block_nr))
 			goto out;
 		if (unlikely((rb->frames_per_block * req->tp_block_nr) !=
 					req->tp_frame_nr))