PT-2026-64616

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description In the ksmbd module, the FSCTL DUPLICATE EXTENTS TO FILE control code passes the source file to vfs clone file range or vfs copy file range without verifying the SMB access mask of the...

Linux Distros Unpatched Vulnerability : CVE-2026-64395

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: require source read access for duplicate extents FSCTLDUPLICATEEXTENTSTOFILE passes the source file directly to vfsclonefilerange or vfscopyfilerange...

Linux Distros Unpatched Vulnerability : CVE-2026-64399

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: add permission checks for FSCTLDUPLICATEEXTENTSTOFILE The FSCTLDUPLICATEEXTENTSTOFILE arm of smb2ioctl overwrites the destination file's data via...

PT-2026-64620

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description In the Linux kernel, the smb2 ioctl function fails to perform necessary permission checks when processing the FSCTL DUPLICATE EXTENTS TO FILE control code. Specifically, it uses vfs clon...