diff options
| author | Kangjie Lu <kangjielu@gmail.com> | 2016-05-03 16:44:32 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-05-20 14:18:45 +0200 |
| commit | 7c1e076eefe76f1522ce94a4d7ce63e42b14438f (patch) | |
| tree | 3600ef7b45c00a396fa207eb0f9331dfc14e1a5b | |
| parent | bbb79774fcea8b92df051d1d68fcba18d884f860 (diff) | |
ALSA: timer: Fix leak in events via snd_timer_user_tinterrupt
commit e4ec8cc8039a7063e24204299b462bd1383184a5 upstream.
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: Kangjie Lu <kjlu@gatech.edu>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | sound/core/timer.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sound/core/timer.c b/sound/core/timer.c index 47c8beb5eb40..d448437df4b5 100644 --- a/sound/core/timer.c +++ b/sound/core/timer.c @@ -1295,6 +1295,7 @@ static void snd_timer_user_tinterrupt(struct snd_timer_instance *timeri, } if ((tu->filter & (1 << SNDRV_TIMER_EVENT_RESOLUTION)) && tu->last_resolution != resolution) { + memset(&r1, 0, sizeof(r1)); r1.event = SNDRV_TIMER_EVENT_RESOLUTION; r1.tstamp = tstamp; r1.val = resolution; |