Aren/NetBSD
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Sprinkle a couple more locks.

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This commit is contained in:
ad 2007-02-10 10:09:01 +00:00
parent 24f8ad7f38
commit 8cfae44a35
1 changed files with 15 additions and 5 deletions
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20
sys/compat/hpux/hpux_compat.c
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@ -1,4 +1,4 @@
/* $NetBSD: hpux_compat.c,v 1.84 2007/02/10 02:42:30 tsutsui Exp $ */
/* $NetBSD: hpux_compat.c,v 1.85 2007/02/10 10:09:01 ad Exp $ */
/*
* Copyright (c) 1990, 1993
@ -82,7 +82,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: hpux_compat.c,v 1.84 2007/02/10 02:42:30 tsutsui Exp $");
__KERNEL_RCSID(0, "$NetBSD: hpux_compat.c,v 1.85 2007/02/10 10:09:01 ad Exp $");
#if defined(_KERNEL_OPT)
#include "opt_sysv.h"
@ -938,14 +938,24 @@ hpux_sys_getpgrp2(lp, v, retval)
if (SCARG(uap, pid) == 0)
SCARG(uap, pid) = cp->p_pid;
p = pfind(SCARG(uap, pid));
if (p == 0)
rw_enter(&proclist_lock, RW_READER);
p = p_find(SCARG(uap, pid), PFIND_LOCKED);
if (p == 0) {
rw_exit(&proclist_lock);
return (ESRCH);
}
mutex_enter(&p->p_mutex);
if (kauth_cred_geteuid(lp->l_cred) &&
kauth_cred_geteuid(p->p_cred) != kauth_cred_geteuid(lp->l_cred) &&
!inferior(p, cp))
!inferior(p, cp)) {
mutex_exit(&p->p_mutex);
rw_exit(&proclist_lock);
return (EPERM);
}
mutex_exit(&p->p_mutex);
*retval = p->p_pgid;
rw_exit(&proclist_lock);
return (0);
}