usb: gadget: gadgetfs: Free memory allocated by memdup_user()
authorMario Schuknecht <mario.schuknecht@dresearch-fe.de>
Tue, 16 Dec 2014 07:58:57 +0000 (08:58 +0100)
committerFelipe Balbi <balbi@ti.com>
Mon, 22 Dec 2014 16:37:15 +0000 (10:37 -0600)
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())
Cc: <stable@vger.kernel.org> # v3.15+
Signed-off-by: Mario Schuknecht <mario.schuknecht@dresearch-fe.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
drivers/usb/gadget/legacy/inode.c

index c744e4975d744c4fb710a429ec055616fffd4833..08048613eed6bcf53f928e50fc1b7054ff41d165 100644 (file)
@@ -449,6 +449,7 @@ ep_write (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
                data->name, len, (int) value);
 free1:
        mutex_unlock(&data->lock);
+       kfree (kbuf);
        return value;
 }