From 60ee22579dd76afe4d97f699fdf9ff9be9aa1b9a Mon Sep 17 00:00:00 2001 From: Brian Feldman Date: Wed, 30 Aug 2000 00:01:48 +0000 Subject: MFC: uidinfo race fixes --- sys/kern/kern_fork.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'sys/kern/kern_fork.c') diff --git a/sys/kern/kern_fork.c b/sys/kern/kern_fork.c index 488e24db59c5..309baa0d7a4e 100644 --- a/sys/kern/kern_fork.c +++ b/sys/kern/kern_fork.c @@ -183,7 +183,7 @@ fork1(p1, flags, procp) struct proc *p2, *pptr; uid_t uid; struct proc *newproc; - int count; + int ok; static int pidchecked = 0; struct forklist *ep; @@ -245,9 +245,8 @@ fork1(p1, flags, procp) * Increment the count of procs running with this uid. Don't allow * a nonprivileged user to exceed their current limit. */ - count = chgproccnt(uid, 1); - if (uid != 0 && count > p1->p_rlimit[RLIMIT_NPROC].rlim_cur) { - (void)chgproccnt(uid, -1); + ok = chgproccnt(uid, 1, p1->p_rlimit[RLIMIT_NPROC].rlim_cur); + if (uid != 0 && !ok) { /* * Back out the process count */ -- cgit v1.2.3