diff options
Diffstat (limited to 'sys/netgraph/ng_l2tp.c')
| -rw-r--r-- | sys/netgraph/ng_l2tp.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/sys/netgraph/ng_l2tp.c b/sys/netgraph/ng_l2tp.c index 85cd6c3e340c..55fa2cd31060 100644 --- a/sys/netgraph/ng_l2tp.c +++ b/sys/netgraph/ng_l2tp.c @@ -1544,6 +1544,16 @@ ng_l2tp_xmit_ctrl(priv_p priv, struct mbuf *m, u_int16_t ns) priv->stats.memoryFailures++; return (ENOBUFS); } + + /* + * The below requires 12 contiguous bytes for the L2TP header + * to be written into. + */ + m = m_pullup(m, 12); + if (m == NULL) { + priv->stats.memoryFailures++; + return (ENOBUFS); + } } /* Fill in L2TP header */ |