diff options
Diffstat (limited to 'freebsd/sys/net80211/ieee80211_crypto.c')
| -rw-r--r-- | freebsd/sys/net80211/ieee80211_crypto.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/freebsd/sys/net80211/ieee80211_crypto.c b/freebsd/sys/net80211/ieee80211_crypto.c index 2e28538c..264e3f17 100644 --- a/freebsd/sys/net80211/ieee80211_crypto.c +++ b/freebsd/sys/net80211/ieee80211_crypto.c @@ -664,14 +664,15 @@ ieee80211_crypto_decap(struct ieee80211_node *ni, struct mbuf *m, int hdrlen, k = &ni->ni_ucastkey; /* - * Insure crypto header is contiguous for all decap work. + * Insure crypto header is contiguous and long enough for all + * decap work. */ cip = k->wk_cipher; - if (m->m_len < hdrlen + cip->ic_header && - (m = m_pullup(m, hdrlen + cip->ic_header)) == NULL) { + if (m->m_len < hdrlen + cip->ic_header) { IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_CRYPTO, wh->i_addr2, - "unable to pullup %s header", cip->ic_name); - vap->iv_stats.is_rx_wepfail++; /* XXX */ + "frame is too short (%d < %u) for crypto decap", + cip->ic_name, m->m_len, hdrlen + cip->ic_header); + vap->iv_stats.is_rx_tooshort++; *key = NULL; return (0); } |