From dbd396636870b30c2c11c098bfc30e124198d29f Mon Sep 17 00:00:00 2001 From: Ilan Peer Date: Sun, 18 Jun 2023 21:49:44 +0300 Subject: [PATCH] wifi: mac80211: Include Multi-Link in CRC calculation Include the Multi-Link elements found in beacon frames in the CRC calculation, as these elements are intended to reflect changes in the AP MLD state. Signed-off-by: Ilan Peer Signed-off-by: Gregory Greenman Link: https://lore.kernel.org/r/20230618214435.ae8246b93d85.Ia64b45198de90ff7f70abcc997841157f148ea40@changeid Signed-off-by: Johannes Berg --- net/mac80211/util.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/net/mac80211/util.c b/net/mac80211/util.c index ef53d3b..6c52c597 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -987,6 +987,10 @@ ieee80211_parse_extension_element(u32 *crc, const struct ieee80211_multi_link_elem *mle = (void *)data; + if (crc) + *crc = crc32_be(*crc, (void *)elem, + elem->datalen + 2); + switch (le16_get_bits(mle->control, IEEE80211_ML_CONTROL_TYPE)) { case IEEE80211_ML_CONTROL_TYPE_BASIC: -- 2.7.4