From: Eason Lai <eason.lai@mediatek.com>
To: <nbd@nbd.name>, <lorenzo@kernel.org>
Cc: <linux-wireless@vger.kernel.org>,
<linux-mediatek@lists.infradead.org>, <kun.wu@mediatek.com>,
<deren.wu@mediatek.com>, <sean.wang@mediatek.com>,
<quan.zhou@mediatek.com>, <ryder.lee@mediatek.com>,
<leon.yen@mediatek.com>, <litien.chang@mediatek.com>,
<jb.tsai@mediatek.com>, <jeff.hsu@mediatek.com>,
<eason.lai@mediatek.com>, Jeff Hsu <Jeff.Hsu@mediatek.com>
Subject: [PATCH] SER: mt7925: race condition in mt7925e_mac_reset allows compromised WiFi firmware to trigger host sk_buff use-after-free
Date: Mon, 12 Oct 2026 11:26:57 +0800 [thread overview]
Message-ID: <20261012032657.58631-1-eason.lai@mediatek.com> (raw)
From: Jeff Hsu <Jeff.Hsu@mediatek.com>
Fix racing condition in reset handler result sk_buff use-after-free
Signed-off-by: Jeff Hsu <Jeff.Hsu@mediatek.com>
---
drivers/net/wireless/mediatek/mt76/mt7925/pci_mac.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/pci_mac.c b/drivers/net/wireless/mediatek/mt76/mt7925/pci_mac.c
index c3db814b2788..555eeb74d023 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7925/pci_mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7925/pci_mac.c
@@ -73,9 +73,11 @@ void mt7925_tx_token_put(struct mt792x_dev *dev)
int mt7925e_mac_reset(struct mt792x_dev *dev)
{
const struct mt792x_irq_map *irq_map = dev->irq_map;
+ struct mt76_phy *mphy = &dev->mt76.phy;
int i, err;
- mt792xe_mcu_drv_pmctrl(dev);
+ __mt792xe_mcu_drv_pmctrl(dev);
+ clear_bit(MT76_STATE_PM, &mphy->state);
mt76_connac_free_pending_tx_skbs(&dev->pm, NULL);
--
2.45.2
next reply other threads:[~2026-10-12 3:27 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-12 3:26 Eason Lai [this message]
2026-10-13 4:18 ` [PATCH] SER: mt7925: race condition in mt7925e_mac_reset allows compromised WiFi firmware to trigger host sk_buff use-after-free Devin Wittmayer
2026-10-13 6:07 ` Eason Lai (賴易聖)
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