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Message-Id: <1358998046-613-26-git-send-email-herton.krzesinski@canonical.com>
Date:	Thu, 24 Jan 2013 01:26:37 -0200
From:	Herton Ronaldo Krzesinski <herton.krzesinski@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Nickolai Zeldovich <nickolai@...il.mit.edu>,
	Samuel Thibault <samuel.thibault@...-lyon.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Herton Ronaldo Krzesinski <herton.krzesinski@...onical.com>
Subject: [PATCH 25/74] staging: speakup: avoid out-of-range access in synth_init()

3.5.7.4 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Nickolai Zeldovich <nickolai@...il.mit.edu>

commit ae428655b826f2755a8101b27beda42a275ef8ad upstream.

Check that array index is in-bounds before accessing the synths[] array.

Signed-off-by: Nickolai Zeldovich <nickolai@...il.mit.edu>
Cc: Samuel Thibault <samuel.thibault@...-lyon.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@...onical.com>
---
 drivers/staging/speakup/synth.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/speakup/synth.c b/drivers/staging/speakup/synth.c
index 331eae7..217fd4a 100644
--- a/drivers/staging/speakup/synth.c
+++ b/drivers/staging/speakup/synth.c
@@ -342,7 +342,7 @@ int synth_init(char *synth_name)
 
 	mutex_lock(&spk_mutex);
 	/* First, check if we already have it loaded. */
-	for (i = 0; synths[i] != NULL && i < MAXSYNTHS; i++)
+	for (i = 0; i < MAXSYNTHS && synths[i] != NULL; i++)
 		if (strcmp(synths[i]->name, synth_name) == 0)
 			synth = synths[i];
 
-- 
1.7.9.5

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