| author | Takashi Iwai <tiwai@suse.de> | |
| Tue, 28 Oct 2014 11:42:19 +0000 (12:42 +0100) | ||
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | |
| Fri, 14 Nov 2014 16:47:54 +0000 (08:47 -0800) | ||
| commit | a58d9ee3e1b064e8b449177dedab4d2da162fdd0 | |
| tree | 872aac88ecdb78e96c82d256430b91875e980892 | tree | snapshot (tar.xz tar.gz zip) |
| parent | bcaf8f4d1aa458626c5563e60b3005ceea2327e5 | commit | diff |
ALSA: pcm: Zero-clear reserved fields of PCM status ioctl in compat mode
commit 317168d0c766defd14b3d0e9c2c4a9a258b803ee upstream.
In compat mode, we copy each field of snd_pcm_status struct but don't
touch the reserved fields, and this leaves uninitialized values
there. Meanwhile the native ioctl does zero-clear the whole
structure, so we should follow the same rule in compat mode, too.
Reported-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 317168d0c766defd14b3d0e9c2c4a9a258b803ee upstream.
In compat mode, we copy each field of snd_pcm_status struct but don't
touch the reserved fields, and this leaves uninitialized values
there. Meanwhile the native ioctl does zero-clear the whole
structure, so we should follow the same rule in compat mode, too.
Reported-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| sound/core/pcm_compat.c | diff | blob | history |