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| author | Kangjie Lu <kangjielu@gmail.com> | 2016-05-03 16:44:32 -0400 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2016-08-22 22:37:19 +0100 |
| commit | 370db426e5eb8b6823c0e8099616e91f21e3136c (patch) | |
| tree | 5a7ad1d6170f231d064b74676c42ff3f75fd7bbf | |
| parent | 506a6ad7e521baf8e554eedfd09873f490c8a304 (diff) | |
| download | linux-stable-370db426e5eb8b6823c0e8099616e91f21e3136c.tar.gz linux-stable-370db426e5eb8b6823c0e8099616e91f21e3136c.tar.bz2 linux-stable-370db426e5eb8b6823c0e8099616e91f21e3136c.zip | |
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: Ben Hutchings <ben@decadent.org.uk>
| -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 08a38befe109..bce3fe051fbf 100644 --- a/sound/core/timer.c +++ b/sound/core/timer.c @@ -1248,6 +1248,7 @@ 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; |