From: Kees Cook <keescook@chromium.org>
Date: Mon, 30 Sep 2013 16:22:20 +0000 (-0300)
Subject: [media] dib9000: fix potential format string leak
X-Git-Tag: v3.13-rc1~47^2~135
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=f25bbaff71a779a7d347e0588e56d890a153af1b;p=linux.git

[media] dib9000: fix potential format string leak

Make sure that a format string cannot accidentally
leak into the printk buffer.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---

diff --git a/drivers/media/dvb-frontends/dib9000.c b/drivers/media/dvb-frontends/dib9000.c
index 6201c59a78dd..61b2cfe6789c 100644
--- a/drivers/media/dvb-frontends/dib9000.c
+++ b/drivers/media/dvb-frontends/dib9000.c
@@ -649,7 +649,7 @@ static int dib9000_risc_debug_buf(struct dib9000_state *state, u16 * data, u8 si
 	b[2 * (size - 2) - 1] = '\0';	/* Bullet proof the buffer */
 	if (*b == '~') {
 		b++;
-		dprintk(b);
+		dprintk("%s", b);
 	} else
 		dprintk("RISC%d: %d.%04d %s", state->fe_id, ts / 10000, ts % 10000, *b ? b : "<emtpy>");
 	return 1;