From 7fe0d21f5633af8c3fab9f0ef0706c6156623484 Mon Sep 17 00:00:00 2001 From: Benjamin Berg Date: Mon, 10 Nov 2025 14:26:18 +0200 Subject: [PATCH] wifi: mac80211: skip rate verification for not captured PSDUs If for example the sniffer did not follow any AIDs in an MU frame, then some of the information may not be filled in or is even expected to be invalid. As an example, in that case it is expected that Nss is zero. Fixes: 2ff5e52e7836 ("radiotap: add 0-length PSDU "not captured" type") Signed-off-by: Benjamin Berg Signed-off-by: Miri Korenblit Link: https://patch.msgid.link/20251110142554.83a2858ee15b.I9f78ce7984872f474722f9278691ae16378f0a3e@changeid Signed-off-by: Johannes Berg --- net/mac80211/rx.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 6af43dfefdd6a..5b4c3fe9970ad 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -5360,10 +5360,14 @@ void ieee80211_rx_list(struct ieee80211_hw *hw, struct ieee80211_sta *pubsta, if (WARN_ON(!local->started)) goto drop; - if (likely(!(status->flag & RX_FLAG_FAILED_PLCP_CRC))) { + if (likely(!(status->flag & RX_FLAG_FAILED_PLCP_CRC) && + !(status->flag & RX_FLAG_NO_PSDU && + status->zero_length_psdu_type == + IEEE80211_RADIOTAP_ZERO_LEN_PSDU_NOT_CAPTURED))) { /* - * Validate the rate, unless a PLCP error means that - * we probably can't have a valid rate here anyway. + * Validate the rate, unless there was a PLCP error which may + * have an invalid rate or the PSDU was not capture and may be + * missing rate information. */ switch (status->encoding) { -- 2.47.3