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 smb_validate_ntsd_sid() …
Published: 2026-07-19 · CVSS: 8.8 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7