linux-kernel - [PATCH 3.12 096/235] USB: serial: garmin_gps: fix memory leak on failed URB submit

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Message-Id: <a5c558687f66ed779c8c439b340da32eb5e33774.1485514374.git.jslaby@suse.cz>
Date:   Fri, 27 Jan 2017 11:53:49 +0100
From:   Jiri Slaby <jslaby@...e.cz>
To:     stable@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, Johan Hovold <johan@...nel.org>,
        Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 3.12 096/235] USB: serial: garmin_gps: fix memory leak on failed URB submit

From: Johan Hovold <johan@...nel.org>

3.12-stable review patch.  If anyone has any objections, please let me know.

===============

commit c4ac4496e835b78a45dfbf74f6173932217e4116 upstream.

Make sure to free the URB transfer buffer in case submission fails (e.g.
due to a disconnect).

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Johan Hovold <johan@...nel.org>
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 drivers/usb/serial/garmin_gps.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c
index 04b5ed90ffb2..9f1381dfce8c 100644
--- a/drivers/usb/serial/garmin_gps.c
+++ b/drivers/usb/serial/garmin_gps.c
@@ -1049,6 +1049,7 @@ static int garmin_write_bulk(struct usb_serial_port *port,
 		   "%s - usb_submit_urb(write bulk) failed with status = %d\n",
 				__func__, status);
 		count = status;
+		kfree(buffer);
 	}
 
 	/* we are done with this urb, so let the host driver
-- 
2.11.0