From 51581fd07d8b8f5c3ff4444d6a8d2dc130d6cf57 Mon Sep 17 00:00:00 2001 From: Julian Wiedmann Date: Tue, 12 Feb 2019 18:33:20 +0100 Subject: [PATCH] s390/qeth: limit trace to valid data of command request 'len' specifies how much data we send to the HW, don't dump beyond this boundary. As of today this is no big concern - commands are built in full, zeroed pages. Signed-off-by: Julian Wiedmann Signed-off-by: David S. Miller --- drivers/s390/net/qeth_core_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index 428175e..ae2ea0a 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -1991,7 +1991,7 @@ void qeth_prepare_control_data(struct qeth_card *card, int len, card->seqno.pdu_hdr++; memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data), &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH); - QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN); + QETH_DBF_HEX(CTRL, 2, iob->data, min(len, QETH_DBF_CTRL_LEN)); } EXPORT_SYMBOL_GPL(qeth_prepare_control_data); -- 2.7.4