diff -drupN a/drivers/nfc/st21nfca/dep.c b/drivers/nfc/st21nfca/dep.c
--- a/drivers/nfc/st21nfca/dep.c	2018-08-06 17:23:04.000000000 +0300
+++ b/drivers/nfc/st21nfca/dep.c	2022-06-12 05:28:14.000000000 +0300
@@ -217,7 +217,8 @@ static int st21nfca_tm_recv_atr_req(stru
 
 	atr_req = (struct st21nfca_atr_req *)skb->data;
 
-	if (atr_req->length < sizeof(struct st21nfca_atr_req)) {
+	if (atr_req->length < sizeof(struct st21nfca_atr_req) ||
+	    atr_req->length > skb->len) {
 		r = -EPROTO;
 		goto exit;
 	}