CVE-2026-64138 ksmbd: validate SID in parent security descriptor during ACL inheritance

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate SID in parent security descriptor during ACL inheritance Introduce smbvalidatentsdsid helper to safely validate Owner SID and Group SID inside the NT Security Descriptor smbntsd retrieved from the parent directory...

PT-2026-61455

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate SID in parent security descriptor during ACL inheritance Introduce smb validate ntsd sid helper to safely validate Owner SID and Group SID inside the NT Security Descriptor smb ntsd retrieved from the parent...