diff --git a/net/mac80211/airtime.c b/net/mac80211/airtime.c
index 0c54cdbd753c..a4e1f33c0377 100644
--- a/net/mac80211/airtime.c
+++ b/net/mac80211/airtime.c
@@ -632,6 +632,22 @@ static bool ieee80211_fill_rate_info(struct ieee80211_hw *hw,
 	if (!ri || !sband)
 	    return false;
 
+	/*
+	 * ieee80211_get_rate_duration() only handles these widths. Drivers
+	 * may also report e.g. HE/EHT RU allocations, which cannot be used
+	 * to estimate airtime here.
+	 */
+	switch (ri->bw) {
+	case RATE_INFO_BW_20:
+	case RATE_INFO_BW_40:
+	case RATE_INFO_BW_80:
+	case RATE_INFO_BW_160:
+	case RATE_INFO_BW_320:
+		break;
+	default:
+		return false;
+	}
+
 	stat->bw = ri->bw;
 	stat->nss = ri->nss;
 	stat->rate_idx = ri->mcs;
@@ -770,6 +786,8 @@ u32 ieee80211_rate_expected_tx_airtime(struct ieee80211_hw *hw,
 		return ieee80211_calc_rx_airtime(hw, &stat, len) * 1024;
 
 	duration = ieee80211_get_rate_duration(hw, &stat, &overhead);
+	if (!duration)
+		return 0;
 
 	/*
 	 * Assume that HT/VHT transmission on any AC except VO will