6.1-stable review patch. If anyone has any objections, please let me know.
------------------
From: Aleksandr Mishin <amishin@xxxxxxxxxx>
[ Upstream commit 85099c7ce4f9e64c66aa397cd9a37473637ab891 ]
In rtw89_sta_info_get_iter() 'status->he_gi' is compared to array size.
But then 'rate->he_gi' is used as array index instead of 'status->he_gi'.
This can lead to go beyond array boundaries in case of 'rate->he_gi' is
not equal to 'status->he_gi' and is bigger than array size. Looks like
"copy-paste" mistake.
Fix this mistake by replacing 'rate->he_gi' with 'status->he_gi'.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: e3ec7017f6a2 ("rtw89: add Realtek 802.11ax driver")
Signed-off-by: Aleksandr Mishin <amishin@xxxxxxxxxx>
Signed-off-by: Ping-Ke Shih <pkshih@xxxxxxxxxxx>
Link: https://patch.msgid.link/20240703210510.11089-1-amishin@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/wireless/realtek/rtw89/debug.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/realtek/rtw89/debug.c b/drivers/net/wireless/realtek/rtw89/debug.c
index 3a8fe60d0bb7b..0e014d6afb842 100644
--- a/drivers/net/wireless/realtek/rtw89/debug.c
+++ b/drivers/net/wireless/realtek/rtw89/debug.c
@@ -2386,7 +2386,7 @@ static void rtw89_sta_info_get_iter(void *data, struct ieee80211_sta *sta)
case RX_ENC_HE:
seq_printf(m, "HE %dSS MCS-%d GI:%s", status->nss, status->rate_idx,
status->he_gi <= NL80211_RATE_INFO_HE_GI_3_2 ?
- he_gi_str[rate->he_gi] : "N/A");
+ he_gi_str[status->he_gi] : "N/A");
break;
}
seq_printf(m, "\t(hw_rate=0x%x)\n", rtwsta->rx_hw_rate);
--
2.43.0
