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wifi: mac80211: skip rate verification for not captured PSDUs

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[ Upstream commit 7fe0d21f5633af8c3fab9f0ef0706c6156623484 ]

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: 2ff5e52e78 ("radiotap: add 0-length PSDU "not captured" type")
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20251110142554.83a2858ee15b.I9f78ce7984872f474722f9278691ae16378f0a3e@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Benjamin Berg 2025-11-10 14:26:18 +02:00 • committed by Greg Kroah-Hartman
commit be0715d4f3
1 changed files with 7 additions and 3 deletions
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10
net/mac80211/rx.c
View file

@ -4669,10 +4669,14 @@ void ieee80211_rx_napi(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) {