wifi: mac80211_hwsim: avoid mac80211 warning on bad rate

If the tool on the other side (e.g. wmediumd) gets confused about the rate, we hit a warning in mac80211. Silence that by effectively duplicating the check here and dropping the frame silently (in mac80211 it's dropped with the warning). Reported-by: Sönke Huster <[email protected]> Tested-by: Sönke Huster <[email protected]> Signed-off-by: Johannes Berg <[email protected]>
josf · Oct 10, 2022 · 1833b6f · 1833b6f
1 parent bcca852
commit 1833b6f
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
@@ -4973,6 +4973,8 @@ static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
 	}
 
 	rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
+	if (rx_status.rate_idx >= data2->hw->wiphy->bands[rx_status.band]->n_bitrates)
+		goto out;
 	rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
 
 	hdr = (void *)skb->data;