[PATCH AUTOSEL 6.6 15/20] wifi: mt76: mt7921: fix NULL pointer access in mt7921_ipv6_addr_change
STALE727d
From: Sasha Levin <sashal@kernel.org>
Date: 2024-10-12 11:27:53
Also in:
linux-mediatek, linux-wireless, lkml, stable
Subsystem:
mediatek mt76 wireless lan driver, the rest · Maintainers:
Felix Fietkau, Lorenzo Bianconi, Ryder Lee, Linus Torvalds
Possibly related (same subject, not in this thread)
- 2024-08-23 · [PATCH AUTOSEL 6.6 15/20] wifi: mt76: mt7921: fix NULL pointer access in mt7921_ipv6_addr_change · Sasha Levin <sashal@kernel.org>
From: Bert Karwatzki <redacted> [ Upstream commit 479ffee68d59c599f8aed8fa2dcc8e13e7bd13c3 ] When disabling wifi mt7921_ipv6_addr_change() is called as a notifier. At this point mvif->phy is already NULL so we cannot use it here. Signed-off-by: Bert Karwatzki <redacted> Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://patch.msgid.link/20240812104542.80760-1-spasswolf@web.de (local) Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/net/wireless/mediatek/mt76/mt7921/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/main.c b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
index d8851cb5f400b..da17a29a4ce57 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/main.c@@ -1095,7 +1095,7 @@ static void mt7921_ipv6_addr_change(struct ieee80211_hw *hw, struct inet6_dev *idev) { struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; - struct mt792x_dev *dev = mvif->phy->dev; + struct mt792x_dev *dev = mt792x_hw_dev(hw); struct inet6_ifaddr *ifa; struct in6_addr ns_addrs[IEEE80211_BSS_ARP_ADDR_LIST_LEN]; struct sk_buff *skb;
--
2.43.0