Author: jhb
Date: Fri Oct 17 19:28:21 2014
New Revision: 273237
URL: https://svnweb.freebsd.org/changeset/base/273237

Log:
  MFC 272449:
  Require p_cansched() for changing a process' protection status via
  procctl() rather than p_cansee().

Modified:
  stable/9/sys/kern/sys_process.c
Directory Properties:
  stable/9/sys/   (props changed)

Changes in other areas also in this revision:
Modified:
  stable/10/sys/kern/sys_process.c
Directory Properties:
  stable/10/   (props changed)

Modified: stable/9/sys/kern/sys_process.c
==============================================================================
--- stable/9/sys/kern/sys_process.c     Fri Oct 17 19:04:24 2014        
(r273236)
+++ stable/9/sys/kern/sys_process.c     Fri Oct 17 19:28:21 2014        
(r273237)
@@ -1250,7 +1250,7 @@ protect_setchild(struct thread *td, stru
 {
 
        PROC_LOCK_ASSERT(p, MA_OWNED);
-       if (p->p_flag & P_SYSTEM || p_cansee(td, p) != 0)
+       if (p->p_flag & P_SYSTEM || p_cansched(td, p) != 0)
                return (0);
        if (flags & PPROT_SET) {
                p->p_flag |= P_PROTECTED;
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