diff options
| author | Jesse Brandeburg <jesse.brandeburg@intel.com> | 2019-11-08 06:23:21 -0800 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2019-11-22 13:09:31 -0800 |
| commit | 949375de945f7042df2b6488228a1a2b36e69f35 (patch) | |
| tree | 569bb9fa6b9490579064795caea77f9bb8ffa5ab /drivers/net | |
| parent | 2f9ec2419820350ee70b49a3c4feaa5b7b242f33 (diff) | |
| download | linux-949375de945f7042df2b6488228a1a2b36e69f35.tar.bz2 | |
ice: fix stack leakage
In the case of an invalid virtchannel request the driver
would return uninitialized data to the VF from the PF stack
which is a bug. Fix by initializing the stack variable
earlier in the function before any return paths can be taken.
Fixes: 1071a8358a28 ("ice: Implement virtchnl commands for AVF support")
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c index fd419230a6c0..f8d26674cf5a 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c @@ -1886,8 +1886,8 @@ static int ice_vc_get_stats_msg(struct ice_vf *vf, u8 *msg) enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; struct virtchnl_queue_select *vqs = (struct virtchnl_queue_select *)msg; + struct ice_eth_stats stats = { 0 }; struct ice_pf *pf = vf->pf; - struct ice_eth_stats stats; struct ice_vsi *vsi; if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { @@ -1906,7 +1906,6 @@ static int ice_vc_get_stats_msg(struct ice_vf *vf, u8 *msg) goto error_param; } - memset(&stats, 0, sizeof(struct ice_eth_stats)); ice_update_eth_stats(vsi); stats = vsi->eth_stats; |