diff options
| author | Kangjie Lu <kangjielu@gmail.com> | 2016-05-03 23:44:32 +0300 |
|---|---|---|
| committer | Jiri Slaby <jslaby@suse.cz> | 2016-07-21 09:36:07 +0300 |
| commit | bdb8bc5f8fb05ce76a8d4e454fd2981501859020 (patch) | |
| tree | 7e105feb6d4f3149841344e96f0744bf7fbcf28b /sound | |
| parent | 640b1f79615c2b7dfba517aba7a8164c489da10c (diff) | |
| download | linux-bdb8bc5f8fb05ce76a8d4e454fd2981501859020.tar.xz | |
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: Jiri Slaby <jslaby@suse.cz>
Diffstat (limited to 'sound')
| -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 aa0582c5dd2e..1902ec0d4487 100644 --- a/sound/core/timer.c +++ b/sound/core/timer.c @@ -1253,6 +1253,7 @@ 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; |