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authorJohannes Berg <johannes.berg@intel.com>2024-01-29 20:06:54 +0100
committerJohannes Berg <johannes.berg@intel.com>2024-02-08 15:00:43 +0100
commita57944d1ee8bf29cbdf7d6b8e9579d88bf912c3e (patch)
tree87093407c70a8e67a580926f99ffeb6db9a0eaf3 /net/mac80211/util.c
parent3552a22880eed3e834a33d02aec6800974bb42b4 (diff)
wifi: mac80211: disallow basic multi-link element in per-STA profile
There really shouldn't be a basic multi-link element in any per-STA profile in an association response, it's not clear what that would really mean. Refuse connecting in this case since the AP isn't following the spec. Link: https://msgid.link/20240129200652.23f1e3b337f1.Idd2e43cdbfe3ba15b3e9b8aeb54c8115587177a0@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/util.c')
-rw-r--r--net/mac80211/util.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index c1fa762f0cba..d85a9c5cde26 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1012,6 +1012,11 @@ ieee80211_parse_extension_element(u32 *crc,
switch (le16_get_bits(mle->control,
IEEE80211_ML_CONTROL_TYPE)) {
case IEEE80211_ML_CONTROL_TYPE_BASIC:
+ if (elems->ml_basic) {
+ elems->parse_error |=
+ IEEE80211_PARSE_ERR_DUP_NEST_ML_BASIC;
+ break;
+ }
elems->ml_basic_elem = (void *)elem;
elems->ml_basic = data;
elems->ml_basic_len = len;