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 4BD863AE198; Wed, 23 Sep 2026 14:36:50 +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=1790174211; cv=none; b=QuuxP9t0toUW5X8sUYrskuWQBKNft3fkPJetO6kI4lRDnqLVUOOe5m6P9Yvr4tanZG5sxhjdTVT4lQddOesqoafNjiDZZMAujLB0DCevguPk6MolAMx9own07FK5aE42MWk8AAjMJE9vNIyqhTf7YhilJA85jPNT3Q06qS5lx7k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790174211; c=relaxed/simple; bh=KFX5bJ3Im3+XNrq8zdZZRlipAUibqrnYHAc8zGZdplU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=kdYo9AEcarImTdy2RE6BL2NIFU4kkekLUf8vDIcDqi4n0llK8XsgzvXorFH756cTDX59lp8bvOtVJbQWerUqcnUHm57tz45Yi6esdzSSCBIAcm7HZ8mDOdiLtrCgSNc/jNLhcVnA58ztV6dtPcXAX50SE+++PrMYel7Rc9qaOLo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=LNeClfMF; 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="LNeClfMF" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A26A01F0089A; Wed, 23 Sep 2026 14:36:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1790174210; bh=PuK1rXUJPRJGWilHjl9R+KH6+PXZsQBbm21I8qk7E1M=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=LNeClfMFZPiogxQtML0ic+Dy36bFx2J5nwCyJp3aVs+fdBws0h5f738bjKEpfspfs sroVBIYM/bJgyVl0kGpx9Hg8hAQFboJygZTwC6u9MemUbjBKudOOc/+eKVSXQbPmWj +vNoCj9Viu4GOujFBOkoC4tWC053c67B+7ZsQAq4= 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 6.18 045/398] wifi: virt_wifi: free skb when disconnected Date: Wed, 23 Sep 2026 16:01:59 +0200 Message-ID: <20260923140644.592853540@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260923140643.441954610@linuxfoundation.org> References: <20260923140643.441954610@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 6.18-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/virtual/virt_wifi.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/wireless/virtual/virt_wifi.c b/drivers/net/wireless/virtual/virt_wifi.c index cd6b66242bff2..b976b90c1c2d2 100644 --- a/drivers/net/wireless/virtual/virt_wifi.c +++ b/drivers/net/wireless/virtual/virt_wifi.c @@ -432,6 +432,7 @@ 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