nl80211: validate number of probe response CSA counters

Due to an apparent copy/paste bug, the number of counters for the
beacon configuration were checked twice, instead of checking the
number of probe response counters. Fix this to check the number of
probe response counters before parsing those.

Cc: [email protected]
Fixes: 9a774c78e211 ("cfg80211: Support multiple CSA counters")
Signed-off-by: Johannes Berg <[email protected]>

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index f02653a08993334f98517d30c9c319f780ce9342..4809f4d2cdcc2fe09c07ce8ddfa936a4ff6033b5 100644 (file)
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -6978,7 +6978,7 @@ static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
 
                params.n_counter_offsets_presp = len / sizeof(u16);
                if (rdev->wiphy.max_num_csa_counters &&
-                   (params.n_counter_offsets_beacon >
+                   (params.n_counter_offsets_presp >
                     rdev->wiphy.max_num_csa_counters))
                        return -EINVAL;