5.4-stable review patch. If anyone has any objections, please let me know.
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From: Benjamin Berg benjamin.berg@intel.com
[ 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: 2ff5e52e7836 ("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.I9f78ce7984872f474722f9... Signed-off-by: Johannes Berg johannes.berg@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- 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 4c805530edfb6..e8e72271fbb8f 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -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) {