From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 68BD46FC5 for ; Mon, 12 Oct 2026 03:27:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=60.244.123.138 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791775643; cv=none; b=DPMCo1VqkQxcBF7bJqGANH7He/Yo4poCwns69H96G4FZQuTuFubpveN+H1GXVRO8S7cd18cHFgwV46ozsSbBZPrCbIDcVpsAnr1qeX92FU0WJ4pFSqBQ8pU+3OSHuJNOqFhjm02roFOgvxEA/OtJEZ/5kJqT7mqzLuXPr6gqk1E= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791775643; c=relaxed/simple; bh=9EclqgrIkMiwsM7r/7S06rTmZfXYc17dcSxsN3kX3cw=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=rODWXv+b9lMiVSycnqlHpH5qYj3ekPSSB44FxaFpyMkJ3KxQrtM+YEwh858YEuWC6ZhpFR938/t8xlAcp7C5bZa/4ROyvv8zMs0d6OIYWhPvR9NdUJKM02ioB3LruOxEvtlM/ncd/dAt2CDbMVPLy/LvvD9QBFo++aawnB4orOY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=mediatek.com; spf=pass smtp.mailfrom=mediatek.com; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b=GHN1hE4e; arc=none smtp.client-ip=60.244.123.138 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=mediatek.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mediatek.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="GHN1hE4e" X-UUID: c9139678c5ec11f1b1788b6acf885367-20261012 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:Content-Transfer-Encoding:MIME-Version:Message-ID:Date:Subject:CC:To:From; bh=j+X2bbuAWMu4UtRzKtDwm0weo+RhlVdQme8SbcEpY1s=; b=GHN1hE4eUr829EsJXKTJwDQ6oDJHlfhZyJ0Yh+4lqxvY0/S1taNo4FSGd5AonMYj1mNMCEGCfDrp6Hw/t/k/t9fjCuL3uZ2iv1I67PqM5uq7eRQLqfbtTZw7BfywhfYCQSkRwbjVekfEIwX0daZNrch6JFcMCGah0E8dlt6AGRo=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.3.20,REQID:a3d3c247-b39f-4b98-9f2e-3eb18befd287,IP:0,U RL:0,TC:0,Content:-5,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION :release,TS:-5 X-CID-META: VersionHash:291e20b,CLOUDID:03cefab8-514b-419b-be8a-53f1868a3ee6,B ulkID:nil,BulkQuantity:0,SF:102|836|865|888|898,TC:-5,Content:0|15|50|99,E DM:-3,IP:nil,URL:0,File:130,RT:0,Bulk:nil,QS:nil,BEC:-1,COL:0,OSI:0,OSA:0, AV:0,LES:1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0,ARC:0 X-CID-BVR: 2,SSN|SDN X-CID-BAS: 2,SSN|SDN,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR X-CID-RHF: D41D8CD98F00B204E9800998ECF8427E X-UUID: c9139678c5ec11f1b1788b6acf885367-20261012 Received: from mtkmbs13n2.mediatek.inc [(172.21.101.108)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1257488006; Mon, 12 Oct 2026 11:27:00 +0800 Received: from mtkmbs11n1.mediatek.inc (172.21.101.185) by MTKMBS14N1.mediatek.inc (172.21.101.75) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.29; Mon, 12 Oct 2026 11:26:58 +0800 Received: from mtksitap99.mediatek.inc (10.233.130.16) by mtkmbs11n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.2562.29 via Frontend Transport; Mon, 12 Oct 2026 11:26:58 +0800 From: Eason Lai To: , CC: , , , , , , , , , , , , Jeff Hsu 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 Message-ID: <20261012032657.58631-1-eason.lai@mediatek.com> X-Mailer: git-send-email 2.45.2 Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain From: Jeff Hsu Fix racing condition in reset handler result sk_buff use-after-free Signed-off-by: Jeff Hsu --- 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