1 From 757d7ace565c06e1302ba7c9244d839455e13881 Mon Sep 17 00:00:00 2001
2 From: Gianluca Gennari <gennarone@gmail.com>
3 Date: Sun, 2 Jun 2013 14:31:19 -0300
4 Subject: [PATCH 3/3] [media] r820t: avoid potential memcpy buffer overflow in
7 The memcpy in shadow_store() could exceed buffer limits when r > 0.
9 Signed-off-by: Gianluca Gennari <gennarone@gmail.com>
10 Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
11 Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 drivers/media/tuners/r820t.c | 4 ++--
14 1 file changed, 2 insertions(+), 2 deletions(-)
16 diff --git a/drivers/media/tuners/r820t.c b/drivers/media/tuners/r820t.c
17 index 63062a9..0a5f96b 100644
18 --- a/drivers/media/tuners/r820t.c
19 +++ b/drivers/media/tuners/r820t.c
20 @@ -364,8 +364,8 @@ static void shadow_store(struct r820t_priv *priv, u8 reg, const u8 *val,
26 + if (len > NUM_REGS - r)
29 tuner_dbg("%s: prev reg=%02x len=%d: %*ph\n",
30 __func__, r + REG_SHADOW_START, len, len, val);