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Date:	Sun, 21 Apr 2013 14:10:31 +0300
From:	Dan Carpenter <>
To:	Dimitri Sivanich <>
Cc:	Robin Holt <>,,
Subject: [patch] gru: 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 <>

diff --git a/drivers/misc/sgi-gru/grufile.c b/drivers/misc/sgi-gru/grufile.c
index 44d273c..ed5fc43 100644
--- a/drivers/misc/sgi-gru/grufile.c
+++ b/drivers/misc/sgi-gru/grufile.c
@@ -176,6 +176,7 @@ static long gru_get_config_info(unsigned long arg)
 	info.nodes = num_online_nodes();
 	info.blades = info.nodes / nodesperblade;
 	info.chiplets = GRU_CHIPLETS_PER_BLADE * info.blades;
+	memset(&info.fill, 0, sizeof(info.fill));
 	if (copy_to_user((void __user *)arg, &info, sizeof(info)))
 		return -EFAULT;
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