From: Johan Hovold <jhovold@xxxxxxxxx>
If the user specifies a custom bulk buffer size we get a double free at
port release.
Cc: stable <stable@xxxxxxxxxx>
Signed-off-by: Johan Hovold <jhovold@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
drivers/usb/serial/ir-usb.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/drivers/usb/serial/ir-usb.c b/drivers/usb/serial/ir-usb.c
index 4a0f519..71bdbe0 100644
--- a/drivers/usb/serial/ir-usb.c
+++ b/drivers/usb/serial/ir-usb.c
@@ -312,6 +312,7 @@ static int ir_open(struct tty_struct *tty, struct usb_serial_port *port)
kfree(port->read_urb->transfer_buffer);
port->read_urb->transfer_buffer = buffer;
port->read_urb->transfer_buffer_length = buffer_size;
+ port->bulk_in_buffer = buffer;
buffer = kmalloc(buffer_size, GFP_KERNEL);
if (!buffer) {
@@ -321,6 +322,7 @@ static int ir_open(struct tty_struct *tty, struct usb_serial_port *port)
kfree(port->write_urb->transfer_buffer);
port->write_urb->transfer_buffer = buffer;
port->write_urb->transfer_buffer_length = buffer_size;
+ port->bulk_out_buffer = buffer;
port->bulk_out_size = buffer_size;
}
--
1.7.1
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