CVE-2017-8246

CVE-2017-8246 concerns the Android CAF ALSA PCM Playback Kernel Module. In msm_pcm_playback_close(), prtd is assigned from substream->runtime->private_data and later freed, but not sanitized to NULL; this creates a dangling pointer. Other code paths (e.g., msm_pcm_volume_ctl_put()) check fo...