shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-03-25 03:50:24 +09:00
Code Issues Packages Projects Releases Wiki Activity

ALSA: timer: Fix leak in events via snd_timer_user_tinterrupt

Browse Source 
commit e4ec8cc803 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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Kangjie Lu
2016-05-03 16:44:32 -04:00
committed by Greg Kroah-Hartman
parent 414d03573f
commit b40763254a
1 changed files with 1 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
sound/core/timer.c
View File

@@ -1243,6 +1243,7 @@ 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;