From 8a91ad9355c66c5026d3d911b434a25408ab876c Mon Sep 17 00:00:00 2001 From: Roi Dayan Date: Thu, 7 Mar 2019 09:27:18 +0200 Subject: net/mlx5: E-Switch, Fix access to invalid memory when toggling esw modes The esw fdb table has a union of legacy and offloads members. So if we were in a certain esw mode we could set some memebers and not set null which is fine as on destroy path and don't care. But then moving from legacy to switchdev a second time, the cleanup flow of legacy mode checks if a struct member was in use if it's not null so we need to make sure to reset the code to null when we init legacy mode. Fixes: 8da202b24913 ("net/mlx5: E-Switch, Add support for VEPA in legacy mode.") Signed-off-by: Roi Dayan Reviewed-by: Huy Nguyen Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/eswitch.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c index ecd2c747f726..1a3b4d5d77fb 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c @@ -431,6 +431,8 @@ static int esw_create_legacy_table(struct mlx5_eswitch *esw) { int err; + memset(&esw->fdb_table.legacy, 0, sizeof(struct legacy_fdb)); + err = esw_create_legacy_vepa_table(esw); if (err) return err; -- cgit v1.2.3