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authorJesse Brandeburg <jesse.brandeburg@intel.com>2019-11-08 06:23:21 -0800
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2019-11-22 13:09:31 -0800
commit949375de945f7042df2b6488228a1a2b36e69f35 (patch)
tree569bb9fa6b9490579064795caea77f9bb8ffa5ab /drivers/net
parent2f9ec2419820350ee70b49a3c4feaa5b7b242f33 (diff)
downloadlinux-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.c3
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;