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Diffstat (limited to 'drivers/usb/serial/keyspan.c')
| -rw-r--r-- | drivers/usb/serial/keyspan.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c index 46448843541a..28b80607cebd 100644 --- a/drivers/usb/serial/keyspan.c +++ b/drivers/usb/serial/keyspan.c @@ -1187,6 +1187,10 @@ static void usa49wg_indat_callback(struct urb *urb) len = 0; while (i < urb->actual_length) { + if (urb->actual_length - i < 3) { + dev_warn_ratelimited(&urb->dev->dev, "malformed indat packet\n"); + break; + } /* Check port number from message */ if (data[i] >= serial->num_ports) { |