From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 12 Jun 2013 21:05:00 +0000 (-0700)
Subject: drivers/misc/sgi-gru/grufile.c: fix info leak in gru_get_config_info()
X-Git-Tag: upstream/snapshot3+hdmi~4938^2~7
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=282c4c0ecce9b9ac1b69acae32a4239441601405;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

drivers/misc/sgi-gru/grufile.c: fix info leak in gru_get_config_info()

The "info.fill" array isn't initialized so it can leak uninitialized stack
information to user space.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Robin Holt <holt@sgi.com>
Acked-by: Dimitri Sivanich <sivanich@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/drivers/misc/sgi-gru/grufile.c b/drivers/misc/sgi-gru/grufile.c
index 44d273c..0535d1e 100644
--- a/drivers/misc/sgi-gru/grufile.c
+++ b/drivers/misc/sgi-gru/grufile.c
@@ -172,6 +172,7 @@ static long gru_get_config_info(unsigned long arg)
 		nodesperblade = 2;
 	else
 		nodesperblade = 1;
+	memset(&info, 0, sizeof(info));
 	info.cpus = num_online_cpus();
 	info.nodes = num_online_nodes();
 	info.blades = info.nodes / nodesperblade;