[Bug 14431] New: adduser will add a user folder with 'shadow_t'

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=14431

            Bug ID: 14431
           Summary: adduser will add a user folder with 'shadow_t'
           Product: Busybox
           Version: unspecified
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: Standard Compliance
          Assignee: unassigned at busybox.net
          Reporter: 15256067679 at 163.com
                CC: busybox-cvs at busybox.net
  Target Milestone: ---

I compile the busybox with SELinux support(I tried both with 1.33.x and
1.34.1), then I try to use adduser to create a new user:

# adduser user_1
Changing password for user_1
New password:
Bad password: too weak
Retype password:
Passwords don't match
passwd: password for user_1 is unchanged
# cd /home/
# ls -Z
system_u:object_r:user_home_dir_t:s0 default
system_u:object_r:shadow_t:s0    user_1

and I check the source code in adduser.c:

the function 'selinux_preserve_fcontext(old_fd)'in
'update_passwd(bb_path_shadow_file, pw.pw_name, p, NULL);' will change the
filecontext for the file that adduser make to 'shadow_t' and I can't find where
to change it back.

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