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Date: Wed, 15 Feb 2012 18:22:49 +0200 From: Yevgeny Petrilin <yevgenyp@...lanox.co.il> To: <davem@...emloft.net> CC: <netdev@...r.kernel.org>, <yevgenyp@...lanox.co.il>, <eugenia@...lanox.co.il> Subject: [PATCH net 1/3] mlx4: fix buffer overrun From: Eugenia Emantayev <eugenia@...lanox.co.il> When passing MLX4_UC_STEER=1 it was translated to value 2 after mlx4_QP_ATTACH_wrapper. Therefore in new_steering_entry() unicast steer entries were added to index 2 of array of size 2. Fixing this bug by shift right to one position. Signed-off-by: Eugenia Emantayev <eugenia@...lanox.co.il> Reviewed-by: Yevgeny Petrilin <yevgenyp@...lanox.co.il> --- .../net/ethernet/mellanox/mlx4/resource_tracker.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c index dcd819b..1420dbc 100644 --- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c +++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c @@ -2538,7 +2538,7 @@ int mlx4_QP_ATTACH_wrapper(struct mlx4_dev *dev, int slave, int attach = vhcr->op_modifier; int block_loopback = vhcr->in_modifier >> 31; u8 steer_type_mask = 2; - enum mlx4_steer_type type = gid[7] & steer_type_mask; + enum mlx4_steer_type type = (gid[7] & steer_type_mask) >> 1; qpn = vhcr->in_modifier & 0xffffff; err = get_res(dev, slave, qpn, RES_QP, &rqp); -- 1.5.4.3 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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