This is a note to let you know that I've just added the patch titled mt76: mt7915: fix an off-by-one bound check to the 5.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: mt76-mt7915-fix-an-off-by-one-bound-check.patch and it can be found in the queue-5.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 77ee2848ffe75c3c940179b38988560c99b320f4 Author: Ryder Lee <ryder.lee@xxxxxxxxxxxx> Date: Wed Jul 14 15:56:10 2021 +0800 mt76: mt7915: fix an off-by-one bound check [ Upstream commit d45dac0732a287fc371a23f257cce04e65627947 ] The bounds check on datalen is off-by-one, so fix it. Signed-off-by: Ryder Lee <ryder.lee@xxxxxxxxxxxx> Signed-off-by: Felix Fietkau <nbd@xxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c index 43960770a9af2..2f30047bd80f2 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c @@ -925,7 +925,7 @@ static void mt7915_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, elem = ieee80211_bss_get_elem(bss, WLAN_EID_EXT_CAPABILITY); - if (!elem || elem->datalen < 10 || + if (!elem || elem->datalen <= 10 || !(elem->data[10] & WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) data->tolerated = false;