[PATCH next] wifi: ath12k: Off by one in ath12k_wmi_process_csa_switch_count_event()

From: Dan Carpenter
Date: Fri Dec 06 2024 - 07:52:51 EST


The ahvif->vif->link_conf[] array has IEEE80211_MLD_MAX_NUM_LINKS elements
so this should be >= instead of > to avoid an out of bounds access.

Fixes: 3952657848c0 ("wifi: ath12k: Use mac80211 vif's link_conf instead of bss_conf")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
drivers/net/wireless/ath/ath12k/wmi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath12k/wmi.c b/drivers/net/wireless/ath/ath12k/wmi.c
index 402ae477da61..46c5027e4f1c 100644
--- a/drivers/net/wireless/ath/ath12k/wmi.c
+++ b/drivers/net/wireless/ath/ath12k/wmi.c
@@ -6873,7 +6873,7 @@ ath12k_wmi_process_csa_switch_count_event(struct ath12k_base *ab,
}
ahvif = arvif->ahvif;

- if (arvif->link_id > IEEE80211_MLD_MAX_NUM_LINKS) {
+ if (arvif->link_id >= IEEE80211_MLD_MAX_NUM_LINKS) {
ath12k_warn(ab, "Invalid CSA switch count even link id: %d\n",
arvif->link_id);
continue;
--
2.45.2