CVE-2026-111581

A flaw in libblockdev allows unprivileged local users to perform argument injection via the udisks2 Filesystem.SetLabel() D-Bus method . The bd_fs_ntfs_set_label() and bd_fs_vfat_set_label() functions pass caller-supplied labels as bare positional arguments to the ntfslabel and fatlabel utilities...

CVE-2026-111581 Libblockdev: libblockdev: argument injection in ntfs/vfat label-setting helpers via udisks2 setlabel() d-bus method

A flaw was found in libblockdev. The bdfsntfssetlabel and bdfsvfatsetlabel functions pass caller-supplied label values as bare positional arguments to the ntfslabel and fatlabel utilities without end-of-options separators or input validation for values beginning with a dash. This allows a label...