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MFC from 1.110: check xrates is not null before deref

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sam 2007-10-28 17:48:21 +00:00
parent c6b8233846
commit e53b2527be
1 changed files with 3 additions and 0 deletions
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3
sys/net80211/ieee80211_input.c
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@ -2481,6 +2481,9 @@ ieee80211_recv_mgmt(struct ieee80211com *ic, struct mbuf *m0,
}
IEEE80211_VERIFY_ELEMENT(rates, IEEE80211_RATE_MAXSIZE);
if (xrates != NULL)
IEEE80211_VERIFY_ELEMENT(xrates,
IEEE80211_RATE_MAXSIZE - rates[1]);
rate = ieee80211_setup_rates(ni, rates, xrates,
IEEE80211_F_JOIN |
IEEE80211_F_DOSORT | IEEE80211_F_DOFRATE |