| commit | ab58d8cc870ef3f0771c197700441936898d1f1d | [log] [tgz] |
|---|---|---|
| author | Peter Wu <peter@lekensteyn.nl> | Mon Jul 11 19:51:06 2016 +0200 |
| committer | Takashi Iwai <tiwai@suse.de> | Mon Jul 11 20:07:46 2016 +0200 |
| tree | 41f7edec506cd28202c41de3637337e0d8dfcf8d | |
| parent | a8ff48cb70835f48de5703052760312019afea55 [diff] |
ALSA: hda - fix use-after-free after module unload
register_vga_switcheroo() sets the PM ops from the hda structure which
is freed later in azx_free. Make sure that these ops are cleared.
Caught by KASAN, initially noticed due to a general protection fault.
Fixes: 246efa4a072f ("snd/hda: add runtime suspend/resume on optimus support (v4)")
Signed-off-by: Peter Wu <peter@lekensteyn.nl>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>