From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794064588; b=WjOuNBS0FWT0yLDfGI6JRk9RQ5zpvHeX/gW+DUjj7Whl1gFXcUKHg462NPR6TK2S3yU4 K2yOnSCiLI/QeOaKD0U7IjHQ8ZEgP6u6lWK0iN9XYe3g1ASRTTDLsxKDEEhOIr2TNi0uv Zi+B0+d6rFyMo3f0IargClJrpelFzJgKHvyKoGj5DLGccqrIND7PpEmlyMGute4AKGQ9R Ityr28t64xFBaJDf6072KVKhYZMz1I8V6K43MEeeloNBzt35A135heEQP+6+z0QPzSAc1 s3WoiVhBaXuWZkXx0Huddhx1wHn3NdmVoiYDn8FCfWOtdhR4wdCynjb4cTYjeMgEzoA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794064588; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:User-Agent:X-stable:X-Patchwork-Hint: MIME-Version:Content-Transfer-Encoding; bh=68lrRG8hxnvXOey8rNKSE6oaGzzXXcOiAPvTTgSc4w8=; b=kLkmnxhYIBF5uP2BdWZRFhJ0EJZofOVU4D2JLzAzqJ4XbidiivJD2Hw5UU01FUd83rAJ BVQQchPwDhahkfm4UoSKeTXvXVOTaHU6s0krMCknufQQU+jZpJCh+3xXzMDX/WeZ0B7bB X0QjyptWNfa/eDcRvGmB+tIQVGQDZIQIZIClHfN7kywXH97obNHhYGQNUmCEqhMawtAtH 3K0zhlLH8r5A1YDippd1m+r89W7gbqFCm8RD8oIiZQ8KpOu7PK12V5YhJMsp05OO6UXET O3ZlaaLisyIZI52uNnCGGugq7zQD5xHNHkcRG0Dg7G345eFWO4k0MYtyAua3+TOO9qA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=CkD0BkYt; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 13CD7606A332; Sat, 7 Nov 2026 15:16:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=CkD0BkYt Received: by smtp.kernel.org (Postfix) with ESMTPSA id AF1561F0089F; Sat, 7 Nov 2026 15:16:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1794064587; bh=68lrRG8hxnvXOey8rNKSE6oaGzzXXcOiAPvTTgSc4w8=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=CkD0BkYtvgZYVcgglvBsWWRQJBFdxZ+BJ4J3E/rqsp+O+9BFkSDp9sYgTRA7+S1Yd Xcy0CeEBoKxsDMv1Y4ZN/8D0LMSIYGXpnvoZjYtUjYL4hmwV9f8nHNSsXKAI0hIcQ6 p3OaXAo3/K+zpJMe3h+wgzzTANxjBKyvIvnpfwPg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Wentao Liang , Oliver Neukum , Johan Hovold , Sasha Levin Subject: [PATCH 7.3 0604/1257] USB: serial: usb_wwan: fix urb leak on disconnect Date: Sat, 7 Nov 2026 08:48:20 -0500 Message-ID: <20261107134955.997204143@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261107134939.434104957@linuxfoundation.org> References: <20261107134939.434104957@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore X-Mailing-List: stable@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 7.3-stable review patch. If anyone has any objections, please let me know. ------------------ From: Johan Hovold [ Upstream commit c78dd373b5c56a5a02da591b583c6b48d0d62954 ] Make sure to drop the reference taken by usb_anchor_urb() when removing URBs from the delayed URB anchor to prevent them from leaking when the device is later disconnected. Fixes: 383cedc3bb43 ("USB: serial: full autosuspend support for the option driver") Reported-by: Wentao Liang Link: https://lore.kernel.org/20260916165608.2085613-1-vulab@iscas.ac.cn Cc: stable@vger.kernel.org # 2.6.32 Cc: Oliver Neukum Signed-off-by: Johan Hovold Signed-off-by: Sasha Levin --- drivers/usb/serial/usb_wwan.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/usb/serial/usb_wwan.c b/drivers/usb/serial/usb_wwan.c index a183cc4515edb..6beb4062bda3a 100644 --- a/drivers/usb/serial/usb_wwan.c +++ b/drivers/usb/serial/usb_wwan.c @@ -401,6 +401,7 @@ void usb_wwan_close(struct usb_serial_port *port) urb = usb_get_from_anchor(&portdata->delayed); if (!urb) break; + usb_put_urb(urb); unbusy_queued_urb(urb, portdata); usb_autopm_put_interface_async(serial->interface); } @@ -578,6 +579,8 @@ static int usb_wwan_submit_delayed_urbs(struct usb_serial_port *port) if (!urb) break; + usb_put_urb(urb); + err = usb_submit_urb(urb, GFP_ATOMIC); if (err) { dev_err(&port->dev, "%s: submit urb failed: %d\n", -- 2.53.0