Commit 13bf8295 authored Feb 27, 2020 by Julian Wiedmann Committed by David S. Miller Feb 27, 2020

s390/qeth: validate device-provided MAC address



It's good practice to not blindly trust what the HW offers.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Alexandra Winter <wintera@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 9c6dc7af

drivers/s390/net/qeth_l3_main.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -920,6 +920,8 @@ static int qeth_l3_iqd_read_initial_mac_cb(struct qeth_card *card,

		if (cmd->hdr.return_code)
		return -EIO;
		if (!is_valid_ether_addr(cmd->data.create_destroy_addr.mac_addr))
		return -EADDRNOTAVAIL;

		ether_addr_copy(card->dev->dev_addr,
		cmd->data.create_destroy_addr.mac_addr);

Admin message