UPSTREAM: 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.

Signed-off-by: Kangjie Lu <>
Signed-off-by: Takashi Iwai <>

Bug: None
Patchset: alsa-info-leak-fixes

(cherry-picked from 9a47e9cff994f37f7f0dbd9ae23740d0f64f9fe6)
Signed-off-by: Mattias Nissler <>

Change-Id: I1b39596fc3f9ba5ee3c7eece646c4807e0ca2cc7
1 file changed