diff options
Diffstat (limited to 'sys/netinet/ip_output.c')
| -rw-r--r-- | sys/netinet/ip_output.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sys/netinet/ip_output.c b/sys/netinet/ip_output.c index 88e18a1..4567f05 100644 --- a/sys/netinet/ip_output.c +++ b/sys/netinet/ip_output.c @@ -1146,7 +1146,11 @@ ip_mloopback(struct ifnet *ifp, struct mbuf *m, struct sockaddr_in *dst, register struct ip *ip; struct mbuf *copym; - copym = m_copy(m, 0, M_COPYALL); + /* + * Make a deep copy of the packet because we're going to + * modify the pack in order to generate checksums. + */ + copym = m_dup(m, M_DONTWAIT); if (copym != NULL && (copym->m_flags & M_EXT || copym->m_len < hlen)) copym = m_pullup(copym, hlen); if (copym != NULL) { |
