6.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Johannes Berg <johannes.berg@xxxxxxxxx>
[ Upstream commit c121514df0daa800cc500dc2738e0b8a1c54af98 ]
If there was a possibility of an MLE basic STA profile without
subelements, we might reject it because we account for the one
octet for sta_info_len twice (it's part of itself, and in the
fixed portion). Like in ieee80211_mle_reconf_sta_prof_size_ok,
subtract 1 to adjust that.
When reading the elements we did take this into account, and
since there are always elements, this never really mattered.
Fixes: 7b6f08771bf6 ("wifi: ieee80211: Support validating ML station profile length")
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Reviewed-by: Ilan Peer <ilan.peer@xxxxxxxxx>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@xxxxxxxxx>
Link: https://msgid.link/20240318184907.00bb0b20ed60.I8c41dd6fc14c4b187ab901dea15ade73c79fb98c@changeid
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
include/linux/ieee80211.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index 3385a2cc5b099..ac5be38d8aaf0 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -5302,7 +5302,7 @@ static inline bool ieee80211_mle_basic_sta_prof_size_ok(const u8 *data,
info_len += 1;
return prof->sta_info_len >= info_len &&
- fixed + prof->sta_info_len <= len;
+ fixed + prof->sta_info_len - 1 <= len;
}
/**
--
2.43.0
