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34 lines
1.1 KiB
Diff
34 lines
1.1 KiB
Diff
From 9a47e9cff994f37f7f0dbd9ae23740d0f64f9fe6 Mon Sep 17 00:00:00 2001
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From: Kangjie Lu <kangjielu@gmail.com>
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Date: Tue, 3 May 2016 16:44:20 -0400
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Subject: ALSA: timer: Fix leak in events via snd_timer_user_ccallback
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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The stack object “r1” has a total size of 32 bytes. Its field
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“event” and “val” both contain 4 bytes padding. These 8 bytes
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padding bytes are sent to user without being initialized.
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Signed-off-by: Kangjie Lu <kjlu@gatech.edu>
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Signed-off-by: Takashi Iwai <tiwai@suse.de>
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---
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sound/core/timer.c | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/sound/core/timer.c b/sound/core/timer.c
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index 306a93d..cc3c08d 100644
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--- a/sound/core/timer.c
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+++ b/sound/core/timer.c
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@@ -1223,6 +1223,7 @@ static void snd_timer_user_ccallback(struct snd_timer_instance *timeri,
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tu->tstamp = *tstamp;
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if ((tu->filter & (1 << event)) == 0 || !tu->tread)
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return;
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+ memset(&r1, 0, sizeof(r1));
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r1.event = event;
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r1.tstamp = *tstamp;
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r1.val = resolution;
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--
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cgit v1.1
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