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[src/netbsd-6]: src/sys/kern Pull up following revision(s) (requested by mart...



details:   https://anonhg.NetBSD.org/src/rev/32149271f292
branches:  netbsd-6
changeset: 774010:32149271f292
user:      riz <riz%NetBSD.org@localhost>
date:      Mon Apr 16 15:28:19 2012 +0000

description:
Pull up following revision(s) (requested by martin in ticket #181):
        sys/kern/kern_exec.c: revision 1.350
Fix leak in a posix_spawn error path, from Greg Oster.

diffstat:

 sys/kern/kern_exec.c |  14 +++++++++++---
 1 files changed, 11 insertions(+), 3 deletions(-)

diffs (36 lines):

diff -r 2b4478ac0e71 -r 32149271f292 sys/kern/kern_exec.c
--- a/sys/kern/kern_exec.c      Mon Apr 16 15:25:46 2012 +0000
+++ b/sys/kern/kern_exec.c      Mon Apr 16 15:28:19 2012 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: kern_exec.c,v 1.339.2.4 2012/04/12 17:05:36 riz Exp $  */
+/*     $NetBSD: kern_exec.c,v 1.339.2.5 2012/04/16 15:28:19 riz Exp $  */
 
 /*-
  * Copyright (c) 2008 The NetBSD Foundation, Inc.
@@ -59,7 +59,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: kern_exec.c,v 1.339.2.4 2012/04/12 17:05:36 riz Exp $");
+__KERNEL_RCSID(0, "$NetBSD: kern_exec.c,v 1.339.2.5 2012/04/16 15:28:19 riz Exp $");
 
 #include "opt_exec.h"
 #include "opt_ktrace.h"
@@ -2012,8 +2012,16 @@
        return;
 
  report_error:
-       if (have_reflock)
+       if (have_reflock) {
+               /*
+                * We have not passed through execve_runproc(),
+                * which would have released the p_reflock and also
+                * taken ownership of the sed_exec part of spawn_data,
+                * so release/free both here.
+                */
                rw_exit(&l->l_proc->p_reflock);
+               execve_free_data(&spawn_data->sed_exec);
+       }
 
        if (parent_is_waiting) {
                /* pass error to parent */



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