diff options
| author | Henning Brauer <henning@cvs.openbsd.org> | 2008-07-14 13:29:46 +0000 |
|---|---|---|
| committer | Henning Brauer <henning@cvs.openbsd.org> | 2008-07-14 13:29:46 +0000 |
| commit | dba64875470cd16d0e8ef7ef8ef09766110a1114 (patch) | |
| tree | 8b3db3b74b1c3f40e8a011fc932a505019187f55 | |
| parent | cb0c7dbbe0bfd569629b288a0b42e1c688d95927 (diff) | |
m_copy can return NULL, so check for it
problem found by "Adrian M. Whatley" <amw> and "Stephan A. Rickauer"
<stephan.rickauer>, both @ni.phys.ethz.ch
fix by me, ok mpf
| -rw-r--r-- | sys/net/pf.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/sys/net/pf.c b/sys/net/pf.c index e21bf9f9f16..6afcea34723 100644 --- a/sys/net/pf.c +++ b/sys/net/pf.c @@ -1,4 +1,4 @@ -/* $OpenBSD: pf.c,v 1.609 2008/07/10 07:41:21 djm Exp $ */ +/* $OpenBSD: pf.c,v 1.610 2008/07/14 13:29:45 henning Exp $ */ /* * Copyright (c) 2001 Daniel Hartmeier @@ -1819,7 +1819,9 @@ pf_send_icmp(struct mbuf *m, u_int8_t type, u_int8_t code, sa_family_t af, { struct mbuf *m0; - m0 = m_copy(m, 0, M_COPYALL); + if ((m0 = m_copy(m, 0, M_COPYALL)) == NULL) + return; + m0->m_pkthdr.pf.flags |= PF_TAG_GENERATED; if (r->rtableid >= 0) |