DivestOS/Patches/Linux_CVEs/CVE-2016-4569/ANY/0001.patch

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From cec8f96e49d9be372fdb0c3836dcf31ec71e457e Mon Sep 17 00:00:00 2001
From: Kangjie Lu <kangjielu@gmail.com>
Date: Tue, 3 May 2016 16:44:07 -0400
Subject: ALSA: timer: Fix leak in SNDRV_TIMER_IOCTL_PARAMS
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
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>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/core/timer.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/sound/core/timer.c b/sound/core/timer.c
index 0cfc028..306a93d 100644
--- a/sound/core/timer.c
+++ b/sound/core/timer.c
@@ -1737,6 +1737,7 @@ 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;
--
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