[Bug 14507] New: cifs ACL exec permission granted where it should be denied

[Bug 14507] New: cifs ACL exec permission granted where it should be denied

[samba-bugs]

https://bugzilla.samba.org/show_bug.cgi?id=14507

            Bug ID: 14507
           Summary: cifs ACL exec permission granted where it should be
                    denied
           Product: CifsVFS
           Version: 5.x
          Hardware: All
                OS: All
            Status: NEW
          Severity: major
          Priority: P5
         Component: kernel fs
          Assignee: sfrench@samba.org
          Reporter: bjacke@samba.org
        QA Contact: cifs-qa@samba.org
  Target Milestone: ---

if the owner of a file has exec permission, then cifs vfs seems to generally
grants exec permission on files where ACL does not actually grant exec
permission.

Example:

bjacke@cifstest1:/mnt3/a$ getcifsacl test.txt 
REVISION:0x1
CONTROL:0x8c04
OWNER:S-1-5-21-4207148185-4040488370-1588356217-500
GROUP:S-1-5-21-4207148185-4040488370-1588356217-513
ACL:S-1-5-21-4207148185-4040488370-1588356217-500:ALLOWED/I/FULL
ACL:S-1-5-21-4207148185-4040488370-1588356217-513:ALLOWED/I/R
ACL:BUILTIN\Users:ALLOWED/I/R

I'm connected with a user who is just in the Users group and I *can* execute
the test.txt file. This should not be allowed. Only Administrator
(S-1-5-21-4207148185-4040488370-1588356217-500) has execute permission
according to the ACL.

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