Commit 9a47e9cf authored by Kangjie Lu's avatar Kangjie Lu Committed by Takashi Iwai

ALSA: timer: Fix leak in events via snd_timer_user_ccallback

The stack object “r1” 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: default avatarKangjie Lu <>
Signed-off-by: default avatarTakashi Iwai <>
parent cec8f96e
......@@ -1223,6 +1223,7 @@ static void snd_timer_user_ccallback(struct snd_timer_instance *timeri,
tu->tstamp = *tstamp;
if ((tu->filter & (1 << event)) == 0 || !tu->tread)
memset(&r1, 0, sizeof(r1));
r1.event = event;
r1.tstamp = *tstamp;
r1.val = resolution;
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