From 1833b6f46d7e2830251a063935ab464256defe22 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 5 Oct 2022 15:10:09 +0200
Subject: [PATCH] wifi: mac80211_hwsim: avoid mac80211 warning on bad rate
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Git-commit: 1833b6f46d7e2830251a063935ab464256defe22
Patch-mainline: v6.1-rc1
References: git-fixes

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 <shuster@seemoo.tu-darmstadt.de>
Tested-by: Sönke Huster <shuster@seemoo.tu-darmstadt.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/net/wireless/mac80211_hwsim.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -3749,6 +3749,8 @@ static int hwsim_cloned_frame_received_n
 
 	rx_status.band = channel->band;
 	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;