svn commit: r211393 - head/lib/libutil

[Dag-Erling Smorgrav]

Author: des
Date: Mon Aug 16 11:32:20 2010
New Revision: 211393
URL: http://svn.freebsd.org/changeset/base/211393

Log:
  In setusercontext(), do not apply user settings unless running as the
  user in question (usually but not necessarily because we were called
  with LOGIN_SETUSER).  This plugs a hole where users could raise their
  resource limits and expand their CPU mask.
  
  MFC after:	3 weeks

Modified:
  head/lib/libutil/login_class.c

Modified: head/lib/libutil/login_class.c
==============================================================================
--- head/lib/libutil/login_class.c	Mon Aug 16 11:22:12 2010	(r211392)
+++ head/lib/libutil/login_class.c	Mon Aug 16 11:32:20 2010	(r211393)
@@ -525,7 +525,7 @@ setusercontext(login_cap_t *lc, const st
     /*
      * Now, we repeat some of the above for the user's private entries
      */
-    if ((lc = login_getuserclass(pwd)) != NULL) {
+    if (getuid() == uid && (lc = login_getuserclass(pwd)) != NULL) {
 	mymask = setlogincontext(lc, pwd, mymask, flags);
 	login_close(lc);
     }