From: Masashi Honma <masashi.honma@xxxxxxxxx> [ Upstream commit 30fe6d50eb088783c8729c7d930f65296b2b3fa7 ] Use array_index_nospec() to sanitize ridx with respect to speculation. Signed-off-by: Masashi Honma <masashi.honma@xxxxxxxxx> Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- net/wireless/nl80211.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 0e91ec49d3da..549d0a4083b3 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -3422,6 +3422,7 @@ static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband, return false; /* check availability */ + ridx = array_index_nospec(ridx, IEEE80211_HT_MCS_MASK_LEN); if (sband->ht_cap.mcs.rx_mask[ridx] & rbit) mcs[ridx] |= rbit; else -- 2.17.1
