netdev - [V2 net 16/16] net/mlx5e: Fix macsec sci endianness at rx sa update

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

Message-Id: <20221024061220.81662-17-saeed@kernel.org>
Date:   Mon, 24 Oct 2022 07:12:20 +0100
From:   Saeed Mahameed <saeed@...nel.org>
To:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Eric Dumazet <edumazet@...gle.com>
Cc:     Saeed Mahameed <saeedm@...dia.com>, netdev@...r.kernel.org,
        Tariq Toukan <tariqt@...dia.com>, Raed Salem <raeds@...dia.com>
Subject: [V2 net 16/16] net/mlx5e: Fix macsec sci endianness at rx sa update

From: Raed Salem <raeds@...dia.com>

The cited commit at rx sa update operation passes the sci object
attribute, in the wrong endianness and not as expected by the HW
effectively create malformed hw sa context in case of update rx sa
consequently, HW produces unexpected MACsec packets which uses this
sa.

Fix by passing sci to create macsec object with the correct endianness,
while at it add __force u64 to prevent sparse check error of type
"sparse: error: incorrect type in assignment".

Fixes: aae3454e4d4c ("net/mlx5e: Add MACsec offload Rx command support")
Signed-off-by: Raed Salem <raeds@...dia.com>
Reviewed-by: Tariq Toukan <tariqt@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_accel/macsec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/macsec.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/macsec.c
index 975fedf6bfd6..34c54c787f4d 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/macsec.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/macsec.c
@@ -444,7 +444,7 @@ static int mlx5e_macsec_update_rx_sa(struct mlx5e_macsec *macsec,
 		return 0;
 	}
 
-	attrs.sci = rx_sa->sci;
+	attrs.sci = cpu_to_be64((__force u64)rx_sa->sci);
 	attrs.enc_key_id = rx_sa->enc_key_id;
 	err = mlx5e_macsec_create_object(mdev, &attrs, false, &rx_sa->macsec_obj_id);
 	if (err)
-- 
2.37.3