mac80211_hwsim: clean up the skb before passing it back
We need to clean up the skb before we can copy it, this
is required for proper operation since the socket it is
still attached to could potentially live in a different
network namespace or so.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index b1e4bae..1b59edc 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -15,6 +15,8 @@
#include <linux/list.h>
#include <linux/spinlock.h>
+#include <net/dst.h>
+#include <net/xfrm.h>
#include <net/mac80211.h>
#include <net/ieee80211_radiotap.h>
#include <linux/if_arp.h>
@@ -409,6 +411,14 @@
if (data->ps != PS_DISABLED)
hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
+ /* release the skb's source info */
+ skb_orphan(skb);
+ dst_release(skb->dst);
+ skb->dst = NULL;
+ skb->mark = 0;
+ secpath_reset(skb);
+ nf_reset(skb);
+
/* Copy skb to all enabled radios that are on the current frequency */
spin_lock(&hwsim_radio_lock);
list_for_each_entry(data2, &hwsim_radios, list) {
