From 03e7e493f1a3697eba115f3f69e296f7e47500ee Mon Sep 17 00:00:00 2001 From: Benjamin Berg Date: Fri, 16 Jun 2023 09:54:02 +0300 Subject: wifi: cfg80211: ignore invalid TBTT info field types The TBTT information field type must be zero. This is only changed in the 802.11be draft specification where the value 1 is used to indicate that only the MLD parameters are included. Signed-off-by: Benjamin Berg Signed-off-by: Gregory Greenman Link: https://lore.kernel.org/r/20230616094949.7865606ffe94.I7ff28afb875d1b4c39acd497df8490a7d3628e3f@changeid Signed-off-by: Johannes Berg --- net/wireless/scan.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'net/wireless') diff --git a/net/wireless/scan.c b/net/wireless/scan.c index d9abbf123ad1..2212e6d24204 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -629,6 +629,13 @@ static int cfg80211_parse_colocated_ap(const struct cfg80211_bss_ies *ies, if (end - pos < count * length) break; + if (u8_get_bits(ap_info->tbtt_info_hdr, + IEEE80211_AP_INFO_TBTT_HDR_TYPE) != + IEEE80211_TBTT_INFO_TYPE_TBTT) { + pos += count * length; + continue; + } + /* * TBTT info must include bss param + BSSID + * (short SSID or same_ssid bit to be set). -- cgit v1.2.3