From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Mario Schuknecht , Felipe Balbi Subject: [PATCH 3.18 147/183] usb: gadget: gadgetfs: Free memory allocated by memdup_user() Date: Sun, 25 Jan 2015 10:07:49 -0800 Message-Id: <20150125180816.552690984@linuxfoundation.org> In-Reply-To: <20150125180810.160428929@linuxfoundation.org> References: <20150125180810.160428929@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Mario Schuknecht commit b44be2462dbe3e23f0aedff64de52a1e8e47a1cd upstream. Commit 3b74c73f8d6f053f422e85fce955b61fb181cfe7 switched over to memdup_user() in ep_write() function and removed kfree (kbuf). memdup_user() function allocates memory which is never freed. Fixes: 3b74c73 (usb: gadget: inode: switch over to memdup_user()) Signed-off-by: Mario Schuknecht Signed-off-by: Felipe Balbi Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/legacy/inode.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/usb/gadget/legacy/inode.c +++ b/drivers/usb/gadget/legacy/inode.c @@ -449,6 +449,7 @@ ep_write (struct file *fd, const char __ data->name, len, (int) value); free1: mutex_unlock(&data->lock); + kfree (kbuf); return value; }