An issue was discovered in the Linux kernel before 6.3.8. fs/smb/server/connection.c in ksmbd does not validate the relationship between the NetBIOS header's length field and the SMB header sizes, via pdu_size in ksmbd_conn_handler_loop, leading to an out-of-bounds read. CREATE(Triage):(User=admin) CVE-2023-38431 (https://nvd.nist.gov/vuln/detail/CVE-2023-38431)