diff options
| author | Federico G. Schwindt <fgsch@cvs.openbsd.org> | 2002-04-10 17:32:00 +0000 |
|---|---|---|
| committer | Federico G. Schwindt <fgsch@cvs.openbsd.org> | 2002-04-10 17:32:00 +0000 |
| commit | 9d9e4a4be88b906e2d0cc8f3829b16adc30fbff1 (patch) | |
| tree | a7660fd6740da1977e0875ecc7008708758a66b9 /sys/kern | |
| parent | b9780a0ea9e74ce401eb965f686bed2ed8a35769 (diff) | |
don't attach to system processes.
art@ niklas@ markus@ millert@ deraadt@ ok.
Diffstat (limited to 'sys/kern')
| -rw-r--r-- | sys/kern/sys_process.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/sys/kern/sys_process.c b/sys/kern/sys_process.c index 562fe227661..2921ef101f9 100644 --- a/sys/kern/sys_process.c +++ b/sys/kern/sys_process.c @@ -1,4 +1,4 @@ -/* $OpenBSD: sys_process.c,v 1.21 2002/03/12 14:37:40 art Exp $ */ +/* $OpenBSD: sys_process.c,v 1.22 2002/04/10 17:31:59 fgsch Exp $ */ /* $NetBSD: sys_process.c,v 1.55 1996/05/15 06:17:47 tls Exp $ */ /*- @@ -121,13 +121,19 @@ sys_ptrace(p, v, retval) return (EINVAL); /* - * (2) it's already being traced, or + * (2) it's a system process + */ + if (ISSET(t->p_flag, P_SYSTEM)) + return (EPERM); + + /* + * (3) it's already being traced, or */ if (ISSET(t->p_flag, P_TRACED)) return (EBUSY); /* - * (3) it's not owned by you, or the last exec + * (4) it's not owned by you, or the last exec * gave us setuid/setgid privs (unless * you're root), or... * @@ -143,7 +149,7 @@ sys_ptrace(p, v, retval) return (error); /* - * (4) ...it's init, which controls the security level + * (5) ...it's init, which controls the security level * of the entire system, and the system was not * compiled with permanently insecure mode turned * on. |