mac80211: do not pass injected frames without a valid rate to the driver

Fall back to rate control if the requested bitrate was not found.

Fixes: dfdfc2beb0dd ("mac80211: Parse legacy and HT rate in injected frames")
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 51e225e4b450..597c8fe672a3 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1839,6 +1839,9 @@ static bool ieee80211_parse_tx_radiotap(struct ieee80211_local *local,
                         }
                 }
 
+                if (info->control.rates[0].idx < 0)
+                        info->control.flags &= ~IEEE80211_TX_CTRL_RATE_INJECT;
+
                 info->control.rates[0].flags = rate_flags;
                 info->control.rates[0].count = min_t(u8, rate_retries + 1,
                                                      local->hw.max_rate_tries);