CVE-2026-64138

Description

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 directory.

References

• https://git.kernel.org/stable/c/18d8db24b0a5b7be4829238dd4022236df02d421
• https://git.kernel.org/stable/c/1c9d0646a9959752f11ca1080dc1ff26bd1756cb
• https://git.kernel.org/stable/c/69f030cf95488ae1186c72ac8c66fd279664ea7f
• https://git.kernel.org/stable/c/f0e5c9c663badc9982e6941322eef1cb17de0f11