3.2.78-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Johan Hovold <johan@xxxxxxxxxx>
commit cac9b50b0d75a1d50d6c056ff65c005f3224c8e0 upstream.
Fix null-pointer dereference at probe should a (malicious) Treo device
lack the expected endpoints.
Specifically, the Treo port-setup hack was dereferencing the bulk-in and
interrupt-in urbs without first making sure they had been allocated by
core.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
drivers/usb/serial/visor.c | 5 +++++
1 file changed, 5 insertions(+)
--- a/drivers/usb/serial/visor.c
+++ b/drivers/usb/serial/visor.c
@@ -587,6 +587,11 @@ static int treo_attach(struct usb_serial
dbg("%s", __func__);
+ if (serial->num_bulk_in < 2 || serial->num_interrupt_in < 2) {
+ dev_err(&serial->interface->dev, "missing endpoints\n");
+ return -ENODEV;
+ }
+
/*
* It appears that Treos and Kyoceras want to use the
* 1st bulk in endpoint to communicate with the 2nd bulk out endpoint,
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html