From: Kangjie Lu <kangjielu@gmail.com>
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 <kjlu@gatech.edu>
Subject: [PATCH] infoleak fix1 in timer
Date: Tue, 3 May 2016 16:44:07 -0400 [thread overview]
Message-ID: <1462308247-6178-1-git-send-email-kjlu@gatech.edu> (raw)
The stack object “tread” has a total size of 32 bytes. Its field
“event” and “val” both contain 4 bytes padding. These 8 bytes
padding bytes are sent to user without being initialized.
Signed-off-by: Kangjie Lu <kjlu@gatech.edu>
---
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 *file,
if (tu->timeri->flags & SNDRV_TIMER_IFLG_EARLY_EVENT) {
if (tu->tread) {
struct snd_timer_tread tread;
+ memset(&tread, 0, sizeof(tread));
tread.event = SNDRV_TIMER_EVENT_EARLY;
tread.tstamp.tv_sec = 0;
tread.tstamp.tv_nsec = 0;
--
1.9.1
next reply other threads:[~2016-05-03 20:44 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-03 20:44 Kangjie Lu [this message]
2016-05-08 9:38 ` [PATCH] infoleak fix1 in timer Takashi Iwai
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