netdev - [net-next PATCH] net/ncsi: Fix gma flag setting after response

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 27 Dec 2019 14:43:49 -0800
From:   Vijay Khemka <vijaykhemka@...com>
To:     Samuel Mendoza-Jonas <sam@...dozajonas.com>,
        "David S. Miller" <davem@...emloft.net>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
CC:     <vijaykhemka@...com>, <joel@....id.au>,
        <linux-aspeed@...ts.ozlabs.org>, <sdasari@...com>
Subject: [net-next PATCH] net/ncsi: Fix gma flag setting after response

gma_flag was set at the time of GMA command request but it should
only be set after getting successful response. Movinng this flag
setting in GMA response handler.

This flag is used mainly for not repeating GMA command once
received MAC address.

Signed-off-by: Vijay Khemka <vijaykhemka@...com>
---
 net/ncsi/ncsi-manage.c | 3 ---
 net/ncsi/ncsi-rsp.c    | 6 ++++++
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/net/ncsi/ncsi-manage.c b/net/ncsi/ncsi-manage.c
index 70fe02697544..e20b81514029 100644
--- a/net/ncsi/ncsi-manage.c
+++ b/net/ncsi/ncsi-manage.c
@@ -764,9 +764,6 @@ static int ncsi_gma_handler(struct ncsi_cmd_arg *nca, unsigned int mf_id)
 		return -1;
 	}
 
-	/* Set the flag for GMA command which should only be called once */
-	nca->ndp->gma_flag = 1;
-
 	/* Get Mac address from NCSI device */
 	return nch->handler(nca);
 }
diff --git a/net/ncsi/ncsi-rsp.c b/net/ncsi/ncsi-rsp.c
index d5611f04926d..a94bb59793f0 100644
--- a/net/ncsi/ncsi-rsp.c
+++ b/net/ncsi/ncsi-rsp.c
@@ -627,6 +627,9 @@ static int ncsi_rsp_handler_oem_mlx_gma(struct ncsi_request *nr)
 	saddr.sa_family = ndev->type;
 	ndev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
 	memcpy(saddr.sa_data, &rsp->data[MLX_MAC_ADDR_OFFSET], ETH_ALEN);
+	/* Set the flag for GMA command which should only be called once */
+	ndp->gma_flag = 1;
+
 	ret = ops->ndo_set_mac_address(ndev, &saddr);
 	if (ret < 0)
 		netdev_warn(ndev, "NCSI: 'Writing mac address to device failed\n");
@@ -671,6 +674,9 @@ static int ncsi_rsp_handler_oem_bcm_gma(struct ncsi_request *nr)
 	if (!is_valid_ether_addr((const u8 *)saddr.sa_data))
 		return -ENXIO;
 
+	/* Set the flag for GMA command which should only be called once */
+	ndp->gma_flag = 1;
+
 	ret = ops->ndo_set_mac_address(ndev, &saddr);
 	if (ret < 0)
 		netdev_warn(ndev, "NCSI: 'Writing mac address to device failed\n");
-- 
2.17.1