diff options
| author | Kangjie Lu <kangjielu@gmail.com> | 2016-05-03 16:44:32 -0400 |
|---|---|---|
| committer | Sasha Levin <alexander.levin@verizon.com> | 2016-08-19 23:08:47 -0400 |
| commit | cd5108403bda69524fd07a035e804d64ee8ae5b8 (patch) | |
| tree | a168a8ea67fc6bac4fb0c1be45939a76dcb37c73 | |
| parent | 1fbc4fd13bd04fd7c7fd033fdfde97e96d2865e5 (diff) | |
ALSA: timer: Fix leak in events via snd_timer_user_tinterrupt
[ Upstream commit e4ec8cc8039a7063e24204299b462bd1383184a5 ]
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: Sasha Levin <alexander.levin@verizon.com>
| -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 224866316a29..43e785a79eb3 100644 --- a/sound/core/timer.c +++ b/sound/core/timer.c @@ -1282,6 +1282,7 @@ 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; |