Reportedly, copying data from a Win 7 client's CD drive to a Samba share can fail.
It turns out the Windows client sends a directory creation request with an initial allocation size > 0 which is currently rejected in create_file_unixpath() with NT_STATUS_ACCESS_DENIED.
Windows behaviour is to allow the directory creation, ignoring the allocation size.
Patch to follow-up.
Created attachment 11786 [details]
Patch for 4.2 and 4.3, cherry-picked from master
Re-assigning to Karolin for inclusion in 4.2 and 4.3.
(In reply to Ralph Böhme from comment #2)
Pushed to autobuild-v4-[2|3]-test.
Pushed to both branches.
Closing out bug report.