diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 6168db3c35e4..a2a64c915a9d 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -2299,6 +2299,8 @@ static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
 
 	control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
 
+	memset(chandef, 0, sizeof(*chandef));
+
 	chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
 	chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
 	chandef->center_freq1 = control_freq;
@@ -2819,7 +2821,7 @@ static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flag
 
 	if (rdev->ops->get_channel) {
 		int ret;
-		struct cfg80211_chan_def chandef;
+		struct cfg80211_chan_def chandef = {};
 
 		ret = rdev_get_channel(rdev, wdev, &chandef);
 		if (ret == 0) {
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index d8ebf4f0ef6e..cccbf845079c 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -2095,7 +2095,7 @@ static void reg_call_notifier(struct wiphy *wiphy,
 
 static bool reg_wdev_chan_valid(struct wiphy *wiphy, struct wireless_dev *wdev)
 {
-	struct cfg80211_chan_def chandef;
+	struct cfg80211_chan_def chandef = {};
 	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
 	enum nl80211_iftype iftype;
 
diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c
index 06943d9c9835..4f0cfb8cc682 100644
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -800,7 +800,7 @@ static int cfg80211_wext_giwfreq(struct net_device *dev,
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
-	struct cfg80211_chan_def chandef;
+	struct cfg80211_chan_def chandef = {};
 	int ret;
 
 	switch (wdev->iftype) {