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authorSamuel Thibault <samuel.thibault@ens-lyon.org>2013-01-07 21:03:51 (GMT)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-01-07 21:53:28 (GMT)
commit6102c48bd421074a33e102f2ebda3724e8d275f9 (patch)
tree44f791324fb19dba052e5eb61efe5afe324af6bd /drivers/staging/speakup/synth.c
parentae428655b826f2755a8101b27beda42a275ef8ad (diff)
downloadlinux-6102c48bd421074a33e102f2ebda3724e8d275f9.tar.xz
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 <samuel.thibault@ens-lyon.org> Cc: stable <stable@vger.kernel.org> Cc: Nickolai Zeldovich <nickolai@csail.mit.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/speakup/synth.c')
-rw-r--r--drivers/staging/speakup/synth.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/staging/speakup/synth.c b/drivers/staging/speakup/synth.c
index b91d22b..7616f05 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);