From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9506136D4E1; Wed, 30 Sep 2026 18:14:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790792042; cv=none; b=WMu7ZNjeIZBGfuyg1rdH5jZdUbZQynjilCGNeNIEU/wPtMkEY/SituIwgK8tUSi7frvtqiYRv5A+TrO8yaLZ3CFVbEVgGiL0a+DLwYXlYsQjmXUwrL6M5aSG4rIax7uQLdN91VjUl2K4/klbmsOkSg00VYau7lHuMBo6H49WTH8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790792042; c=relaxed/simple; bh=+dkVMS1Hg5DgvCA0GvhHjRZZifXnbVyZ+ix9VtjJCSo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=BmtavvY1EdWkXIgByFV0IjZ47U7WcH+0uyXkQAeuwnX6fVMqd56NkDpQfolh2bE2lSIiupRjD2FQQbuz8CbJCJMExwF8KjiYwItDY4ZQZ1rDsRZqW/4hXltu5Xy1dzV3y7qpuv4BcfeyxIOARcCzKCcvTXORijs53MmwPodXomM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=XA3tfFYQ; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="XA3tfFYQ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id EF0341F000FF; Wed, 30 Sep 2026 18:14:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1790792041; bh=noiKusiPi+1ZVf+kNgx/N9Xmi1ZRSHKbHm6AqkS2V1M=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=XA3tfFYQn7zNoEvGk8vNn6I0f45pIy8VTC8Wm6JfxfBnGiqTXssX+vTRm+8YLle2w BzMIVaGK6zZBq6eiSEKIEzWZGM1wqWugmOLYiyhZbGVZUEAud+VIhi1QS05mkWJXYC yNtVn/6OMzMp9JP++jAAXfy5iHlv4h3b12MPtESE= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Mariano Baragiola , Johannes Berg , Sasha Levin Subject: [PATCH 5.15 460/752] wifi: virt_wifi: free skb when disconnected Date: Wed, 30 Sep 2026 17:25:30 +0200 Message-ID: <20260930152408.231177051@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260930152358.131179731@linuxfoundation.org> References: <20260930152358.131179731@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Mariano Baragiola [ Upstream commit f9edf7cf63b96d2b776fca8d258d3c5256e40c8e ] 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 Link: https://patch.msgid.link/20260809124947.3590270-1-mbaragiola@linux.com Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin --- drivers/net/wireless/virt_wifi.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/wireless/virt_wifi.c b/drivers/net/wireless/virt_wifi.c index 4dca9827a4203..4302219d184d0 100644 --- a/drivers/net/wireless/virt_wifi.c +++ b/drivers/net/wireless/virt_wifi.c @@ -430,6 +430,7 @@ 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; } -- 2.53.0