From 6102c48bd421074a33e102f2ebda3724e8d275f9 Mon Sep 17 00:00:00 2001 From: Samuel Thibault Date: Mon, 7 Jan 2013 22:03:51 +0100 Subject: [PATCH] staging: speakup: avoid out-of-range access in synth_add() Check that array index is in-bounds before accessing the synths[] array. Signed-off-by: Samuel Thibault Cc: stable Cc: Nickolai Zeldovich Signed-off-by: Greg Kroah-Hartman --- 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 b91d22b6330..7616f058a00 100644 --- a/drivers/staging/speakup/synth.c +++ b/drivers/staging/speakup/synth.c @@ -423,7 +423,7 @@ int synth_add(struct spk_synth *in_synth) int i; int status = 0; mutex_lock(&spk_mutex); - for (i = 0; synths[i] != NULL && i < MAXSYNTHS; i++) + for (i = 0; i < MAXSYNTHS && synths[i] != NULL; i++) /* synth_remove() is responsible for rotating the array down */ if (in_synth == synths[i]) { mutex_unlock(&spk_mutex);