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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
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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commit 1833b6f46d7e2830251a063935ab464256defe22 upstream.
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>
---
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -3760,6 +3760,8 @@ 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;
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