UBUNTU-CVE-2026-64394

In the Linux kernel, the following vulnerability has been resolved: ksmbd: add a WRITEDAC/WRITEOWNER check to SMB2 SETINFO SECURITY commit cc57232cae23 "ksmbd: fix FSCTL permission bypass by adding a permission check for FSCTLSETSPARSE" added a fp-daccess gate to fsctlsetsparse and noted that...

Microsoft ACL Shortcomings

Hi @ll, the following is a substantially shortened version of and Windows NT supports access control for almost all its objects, "How Security Descriptors and Access Control Lists Work" and "How Permissions Work" provide a comprehensive and exhaustive explanation. "Access Control Lists" provides ...