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| author | Kangjie Lu <kangjielu@gmail.com> | 2016-05-03 16:44:20 -0400 |
|---|---|---|
| committer | Ziyan <jaraidaniel@gmail.com> | 2016-10-29 01:34:13 +0200 |
| commit | 7e256b4cf4b87a702cb8456f539071285f375da9 (patch) | |
| tree | e4a83e554cf483e085574d91c36018d3bfb29dba | |
| parent | b4a6a597d929d00578e6ba68a38467027c955a81 (diff) | |
| download | kernel_samsung_tuna-7e256b4cf4b87a702cb8456f539071285f375da9.zip kernel_samsung_tuna-7e256b4cf4b87a702cb8456f539071285f375da9.tar.gz kernel_samsung_tuna-7e256b4cf4b87a702cb8456f539071285f375da9.tar.bz2 | |
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.
Change-Id: I5ece63432f6ca6251fa31c046c211c8c03313a59
Signed-off-by: Kangjie Lu <kjlu@gatech.edu>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
| -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 269108a..c0a11d5 100644 --- a/sound/core/timer.c +++ b/sound/core/timer.c @@ -1180,6 +1180,7 @@ static void snd_timer_user_ccallback(struct snd_timer_instance *timeri, tu->tstamp = *tstamp; if ((tu->filter & (1 << event)) == 0 || !tu->tread) return; + memset(&r1, 0, sizeof(r1)); r1.event = event; r1.tstamp = *tstamp; r1.val = resolution; |