CVE-2026-64391
UNKNOWN
NVD
CVSS Score
0
Severity
UNKNOWN
Published
Jul 25, 2026
Vendor
unknown
Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: use opener credentials for ADS I/O Alternate data streams are stored as xattrs. Unlike regular file I/O, their read and write paths therefore call VFS xattr helpers which recheck inode permissions and LSM policy using the current task credentials. Run ADS I/O with the credentials captured when the SMB handle was opened.