From c179c9851c1b009faf3ec15b2af5042431a5a2ca Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Wed, 21 Mar 2012 09:50:36 -0300 Subject: media: uvcvideo: Fix ENUMINPUT handling commit 31c5f0c5e25ed71eeced170f113bb590f2f1f6f3 upstream. Properly validate the user-supplied index against the number of inputs. The code used the pin local variable instead of the index by mistake. Reported-by: Jozef Vesely Signed-off-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Greg Kroah-Hartman --- drivers/media/video/uvc/uvc_v4l2.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/media') diff --git a/drivers/media/video/uvc/uvc_v4l2.c b/drivers/media/video/uvc/uvc_v4l2.c index dbefdb0..5afdbb7 100644 --- a/drivers/media/video/uvc/uvc_v4l2.c +++ b/drivers/media/video/uvc/uvc_v4l2.c @@ -710,7 +710,7 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg) break; } pin = iterm->id; - } else if (pin < selector->bNrInPins) { + } else if (index < selector->bNrInPins) { pin = selector->baSourceID[index]; list_for_each_entry(iterm, &chain->entities, chain) { if (!UVC_ENTITY_IS_ITERM(iterm)) -- cgit v1.1