CVE-2023-54038

A flaw was found in the Linux kernel's Bluetooth Host Controller Interface (HCI) connection handling. A local user could exploit this vulnerability when the hci_connect_sco function returns a NULL pointer instead of an error pointer when no link is present. This improper handling of exceptional conditions leads to a NULL pointer dereference, which can result in a system crash and a Denial of Service (DoS).

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.