diff options
Diffstat (limited to 'sys/netinet/ip_options.c')
| -rw-r--r-- | sys/netinet/ip_options.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/netinet/ip_options.c b/sys/netinet/ip_options.c index 41f77a7491f2..a9d6836d9e97 100644 --- a/sys/netinet/ip_options.c +++ b/sys/netinet/ip_options.c @@ -514,6 +514,8 @@ ip_insertoptions(struct mbuf *m, struct mbuf *opt, int *phlen) *phlen = 0; return (m); /* XXX should fail */ } + KASSERT((m->m_flags & M_EXTPG) == 0, ("%s: mbuf %p is unmapped", + __func__, m)); if (p->ipopt_dst.s_addr) ip->ip_dst = p->ipopt_dst; if (!M_WRITABLE(m) || M_LEADINGSPACE(m) < optlen) { |