From 908df057dcf8019f4240778ad7bc0797d54a8729 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Wed, 29 May 2013 06:59:59 -0300 Subject: [PATCH] upstream: [media] saa7134: check register address in g_register Prevent reading out-of-range register values. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/pci/saa7134/saa7134-video.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/media/pci/saa7134/saa7134-video.c b/drivers/media/pci/saa7134/saa7134-video.c index 737e643..db4cc1c5 100644 --- a/drivers/media/pci/saa7134/saa7134-video.c +++ b/drivers/media/pci/saa7134/saa7134-video.c @@ -2258,7 +2258,7 @@ static int vidioc_g_register (struct file *file, void *priv, struct saa7134_fh *fh = priv; struct saa7134_dev *dev = fh->dev; - reg->val = saa_readb(reg->reg); + reg->val = saa_readb(reg->reg & 0xffffff); reg->size = 1; return 0; } @@ -2269,7 +2269,7 @@ static int vidioc_s_register (struct file *file, void *priv, struct saa7134_fh *fh = priv; struct saa7134_dev *dev = fh->dev; - saa_writeb(reg->reg&0xffffff, reg->val); + saa_writeb(reg->reg & 0xffffff, reg->val); return 0; } #endif -- 2.7.4