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Commit 2d488c2f authored by Ursula Braun's avatar Ursula Braun Committed by Jeff Garzik
Browse files

qeth: avoid skb_under_panic for malformatted inbound data 



To make the qeth driver more robust in case of malformatted inbound
packets due to hardware problems, an additional check for
OSN-card-type is added for OSN-type packets.

Signed-off-by: default avatarUrsula Braun <ursula.braun@de.ibm.com>
Signed-off-by: default avatarFrank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: default avatarJeff Garzik <jgarzik@redhat.com>
parent cc181282

drivers/s390/net/qeth_l2_main.c

+8 −5
Original line number Diff line number Diff line
@@ -449,12 +449,15 @@ static void qeth_l2_process_inbound_buffer(struct qeth_card *card, 
			netif_rx(skb);

			break;

		case QETH_HEADER_TYPE_OSN:

			if (card->info.type == QETH_CARD_TYPE_OSN) {

				skb_push(skb, sizeof(struct qeth_hdr));

				skb_copy_to_linear_data(skb, hdr,

						sizeof(struct qeth_hdr));

				len = skb->len;

				card->osn_info.data_cb(skb);

				break;

			}

			/* else unknown */

		default:

			dev_kfree_skb_any(skb);

			QETH_DBF_TEXT(TRACE, 3, "inbunkno");