From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kangjie Lu Subject: [PATCH] infoleak fix1 in timer Date: Tue, 3 May 2016 16:44:07 -0400 Message-ID: <1462308247-6178-1-git-send-email-kjlu@gatech.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Sender: linux-kernel-owner@vger.kernel.org To: perex@perex.cz Cc: tiwai@suse.com, linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org, taesoo@gatech.edu, insu@gatech.edu, Kangjie Lu List-Id: alsa-devel@alsa-project.org The stack object =E2=80=9Ctread=E2=80=9D has a total size of 32 bytes. = Its field =E2=80=9Cevent=E2=80=9D and =E2=80=9Cval=E2=80=9D both contain 4 bytes = padding. These 8 bytes padding bytes are sent to user without being initialized. Signed-off-by: Kangjie Lu --- sound/core/timer.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/core/timer.c b/sound/core/timer.c index 6469bed..964f5eb 100644 --- a/sound/core/timer.c +++ b/sound/core/timer.c @@ -1739,6 +1739,7 @@ static int snd_timer_user_params(struct file *fil= e, if (tu->timeri->flags & SNDRV_TIMER_IFLG_EARLY_EVENT) { if (tu->tread) { struct snd_timer_tread tread; + memset(&tread, 0, sizeof(tread)); tread.event =3D SNDRV_TIMER_EVENT_EARLY; tread.tstamp.tv_sec =3D 0; tread.tstamp.tv_nsec =3D 0; --=20 1.9.1