Apply by doing:
cd /usr/src
patch -p0 < 009_ktrace.patch
And then rebuild your kernel.
Index: sys/kern/kern_ktrace.c
===================================================================
RCS file: /cvs/src/sys/kern/kern_ktrace.c,v
retrieving revision 1.27
retrieving revision 1.27.2.1
diff -u -r1.27 -r1.27.2.1
--- sys/kern/kern_ktrace.c 2002/03/14 01:27:04 1.27
+++ sys/kern/kern_ktrace.c 2002/06/28 15:10:26 1.27.2.1
@@ -1,4 +1,4 @@
-/* $OpenBSD: kern_ktrace.c,v 1.27 2002/03/14 01:27:04 millert Exp $ */
+/* $OpenBSD: kern_ktrace.c,v 1.27.2.1 2002/06/28 15:10:26 jason Exp $ */
/* $NetBSD: kern_ktrace.c,v 1.23 1996/02/09 18:59:36 christos Exp $ */
/*
@@ -530,7 +530,8 @@
target->p_ruid == target->p_svuid &&
caller->p_rgid == target->p_rgid && /* XXX */
target->p_rgid == target->p_svgid &&
- (targetp->p_traceflag & KTRFAC_ROOT) == 0) ||
+ (targetp->p_traceflag & KTRFAC_ROOT) == 0 &&
+ !ISSET(targetp->p_flag, P_SUGID)) ||
caller->pc_ucred->cr_uid == 0)
return (1);
