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authorJouni Malinen <jouni@qca.qualcomm.com>2011-08-11 11:46:22 +0300
committerJohn W. Linville <linville@tuxdriver.com>2011-08-11 14:23:06 -0400
commitf612cedfe152b536197c0120f2e7779bc90219d0 (patch)
treec1ad3b3a00a26eff4b78d81331c168faf901a4ba /net
parent040bdf713d2bec8235f1af705e2d13da5d9baec8 (diff)
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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>
Diffstat (limited to 'net')
-rw-r--r--net/mac80211/sta_info.c1
-rw-r--r--net/wireless/nl80211.c1
2 files changed, 2 insertions, 0 deletions
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 3db78b6..5eaa167 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);
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 253e563..080fd47 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -2267,6 +2267,7 @@ static int nl80211_dump_station(struct sk_buff *skb,
}
while (1) {
+ memset(&sinfo, 0, sizeof(sinfo));
err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
mac_addr, &sinfo);
if (err == -ENOENT)