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-rw-r--r--sys/kern/kern_prot.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/sys/kern/kern_prot.c b/sys/kern/kern_prot.c
index 34223860510..1f21a6d3531 100644
--- a/sys/kern/kern_prot.c
+++ b/sys/kern/kern_prot.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: kern_prot.c,v 1.5 1996/10/02 20:22:14 deraadt Exp $ */
+/* $OpenBSD: kern_prot.c,v 1.6 1996/10/26 07:29:40 tholo Exp $ */
/* $NetBSD: kern_prot.c,v 1.33 1996/02/09 18:59:42 christos Exp $ */
/*
@@ -247,6 +247,9 @@ sys_setpgid(curp, v, retval)
SCARG(uap, pgid) = (short) SCARG(uap, pgid); /* XXX */
#endif
+ if (SCARG(uap, pgid) < 0)
+ return (EINVAL);
+
if (SCARG(uap, pid) != 0 && SCARG(uap, pid) != curp->p_pid) {
if ((targp = pfind(SCARG(uap, pid))) == 0 || !inferior(targp))
return (ESRCH);