In the Linux kernel before 5.17, drivers/phy/tegra/xusb.c mishandles the tegra_xusb_find_port_node return value. Callers expect NULL in the error case, but an error pointer is used. CREATE(Triage):(User=admin) CVE-2023-23000 (https://nvd.nist.gov/vuln/detail/CVE-2023-23000)