svn commit: r365812 - head/sys/kern

[Konstantin Belousov]

Author: kib
Date: Wed Sep 16 21:38:24 2020
New Revision: 365812
URL: https://svnweb.freebsd.org/changeset/base/365812

Log:
  proc_realparent: if p_oppid does not match pid of the current parent
  for non-orphaned process, return reaper instead of init.
  
  Tested by:	pho
  Sponsored by:	The FreeBSD Foundation
  MFC after:	1 week
  Differential revision:	https://reviews.freebsd.org/D26416

Modified:
  head/sys/kern/kern_exit.c

Modified: head/sys/kern/kern_exit.c
==============================================================================
--- head/sys/kern/kern_exit.c	Wed Sep 16 21:34:18 2020	(r365811)
+++ head/sys/kern/kern_exit.c	Wed Sep 16 21:38:24 2020	(r365812)
@@ -104,7 +104,7 @@ proc_realparent(struct proc *child)
 	sx_assert(&proctree_lock, SX_LOCKED);
 	if ((child->p_treeflag & P_TREE_ORPHANED) == 0)
 		return (child->p_pptr->p_pid == child->p_oppid ?
-			    child->p_pptr : initproc);
+		    child->p_pptr : child->p_reaper);
 	for (p = child; (p->p_treeflag & P_TREE_FIRST_ORPHAN) == 0;) {
 		/* Cannot use LIST_PREV(), since the list head is not known. */
 		p = __containerof(p->p_orphan.le_prev, struct proc,