QEMU emulator built with the AHCI emulator support is vulnerable to a NULL pointer dereference issue. It could occur while committing DMA buffer in ahci_commit_buf() if the command header 'ad->cur_cmd' is null. CREATE(Triage):(User=admin) CVE-2019-12067 (https://nvd.nist.gov/vuln/detail/CVE-2019-12067)
