nl80211/cfg80211: Make addition of new sinfo fields safer

Add a comment pointing out the use of enum station_info_flags for
all new struct station_info fields. In addition, memset the sinfo
buffer to zero before use on all paths in the current tree to avoid
leaving uninitialized pointers in the data.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 3db78b696c5c..5eaa1673a8f5 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -330,6 +330,7 @@ static int sta_info_finish_insert(struct sta_info *sta, bool async)
         ieee80211_sta_debugfs_add(sta);
         rate_control_add_sta_debugfs(sta);
 
+        memset(&sinfo, 0, sizeof(sinfo));
         sinfo.filled = 0;
         sinfo.generation = local->sta_generation;
         cfg80211_new_sta(sdata->dev, sta->sta.addr, &sinfo, GFP_KERNEL);