* [PATCH] wifi: virt_wifi: free skb when disconnected
@ 2026-08-09 12:49 Mariano Baragiola
0 siblings, 0 replies; only message in thread
From: Mariano Baragiola @ 2026-08-09 12:49 UTC (permalink / raw)
To: Johannes Berg; +Cc: linux-wireless, Mariano Baragiola
When the simulated link is disconnected, virt_wifi_start_xmit() returns
NET_XMIT_DROP without freeing the skb. dev_hard_start_xmit() treats this
return value as consumed, so every packet sent while disconnected leaks its
skb.
Free the skb before returning the drop status.
Fixes: c7cdba31ed8b ("mac80211-next: rtnetlink wifi simulation device")
Signed-off-by: Mariano Baragiola <mbaragiola@linux.com>
diff --git a/drivers/net/wireless/virtual/virt_wifi.c b/drivers/net/wireless/virtual/virt_wifi.c
index 2335e45db8b8..b69a4650fba8 100644
--- a/drivers/net/wireless/virtual/virt_wifi.c
+++ b/drivers/net/wireless/virtual/virt_wifi.c
@@ -434,6 +434,7 @@ static netdev_tx_t virt_wifi_start_xmit(struct sk_buff *skb,
priv->tx_packets++;
if (!priv->is_connected) {
priv->tx_failed++;
+ dev_kfree_skb_any(skb);
return NET_XMIT_DROP;
}
--
2.55.0
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2026-08-09 12:49 [PATCH] wifi: virt_wifi: free skb when disconnected Mariano Baragiola
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