From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-yx1-f52.google.com (mail-yx1-f52.google.com [74.125.224.52]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0350C175A7D for ; Tue, 7 Apr 2026 05:39:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.224.52 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775540364; cv=none; b=GrmeAL+zjtdzBJyeh3iCNE1F2IGfecknB5LUplH/1HpzxUAcun4RZZh+61BGDHC9TCInVoYD3uXHezMxrh+oYXK2amI5/otTq1/76Lbv59mK0h4oR6tC8lo0dEy81veVVnq/gFL2O0J0s7juktIQaWzq5PcOSrftQHcTO2SCAHY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775540364; c=relaxed/simple; bh=Ru/BnaQyZzVZzrYCIqqhLeRgm+Qndc4JoV2S0iCIdd4=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=OkDdfwshWfuWSCqU0ArVwaqZNxyQi1e/xkx7Pz9gNom4ROALSTOCVKu1+MAtvtuiqjk/Xqt6O8LIVJiAjZG3+t90ZALtcjyS2eYzzCgn1cOqXwNRoWS2j4zNTsFEgn6gYI/KftkB5zkBp9yg4Ipo6d3BeC+w7vDHE4KAqcsbTME= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=ZHDuM2Ip; arc=none smtp.client-ip=74.125.224.52 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="ZHDuM2Ip" Received: by mail-yx1-f52.google.com with SMTP id 956f58d0204a3-6500eae6d2fso4485994d50.1 for ; Mon, 06 Apr 2026 22:39:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1775540362; x=1776145162; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=3o6/M6Ncn32CVMSk11LRfMZ/sdQIlchfXgJf/aiIUmg=; b=ZHDuM2Ip831iQ2mUGfNeTwZq3NRfsSJ21PYt+AoPzkbQoOGOWVIKseBFurE8p47Ohk VNeKMDlbz9kf+9ZVdCLO+4BgrDH7X5KDoaqKm/4xEUB/BF3L7SN5gFeo4FCwlH0thmaM L5SYVbZ45qOcsQbEUGLbrt2iayzbgqKPdE55ZZaqA3v1hMhZEyLlPvxSORsdNV0C8MoZ PyknXB7oa+C7V86Q7TrWFgJrOU3DQTQQOSWfb2gff2PlIp85jrn1qeaMfYfLDCUdo/om aYfb/Iqxn1HmQ/tGrSHZmuGQ4MCSy3fKOtd5R2UeJVIZjr2gZ2x+aN80Y/h2RVhv6bdB wXLA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1775540362; x=1776145162; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=3o6/M6Ncn32CVMSk11LRfMZ/sdQIlchfXgJf/aiIUmg=; b=UiPV4uTSE2G1c+QChOaJXlRFqhAzzuOfAwkn14PTCOT0OKmfSoV6C7fE+VGQXLlfq9 kpG8mVq85h6O9LwGSDcCz6fbcRa2CqLmWHMI8cVDkKnlbL8T78WmvzZrYmCtsADpa4HR NHTBJwTeNXKLgUiceGoHimnVNpIVsbHe6VthVkY0dWmmPBuRoFBzCV0HewjJe2kjf8rq pBKONk9fs/Uzg7MSChJW+BG2AR9rU63a5zRq3i5CddOvXs5o+fUDLBbFPUy5w0HLJqea hTr9ptFYgcqIymsG3tx7t7kpC0tTjbzErtlV79Z16CrEx7CLqCI7+0jlwJrk8AuB5W2w Ofrw== X-Gm-Message-State: AOJu0YzOWuspKJMKkW++6GgEYNyNRvlrYR9Si0ERqYMOeNmxXNqFC58r Hi+himnkb6BxaCUS+T/tODomc9xAIrZHfXELRYfgxOBxMdtXtdgn3IoE5ek0/Ww8 X-Gm-Gg: AeBDieuboWuogSmn3p2y1QJYujz3QojoJoSzQld8+0J5aqpwkofPVOgbM6Jl6+ALNxb +xHWu09xpfNtyTbsbT693kJ+LknVdiNEcc2Fei6ztF90Fizb2qa1dJS4UKnZp90PF6l7wDbjwAK 9Zm8a8REpV9Qumaz5mee255FAvwKhowcf2klrgu+dAf79QqXpqM4TkY5BJad+VhVUvGn5JnRS3E RnLPlQFJajNr8lGxVLBXe/mFKmNBBcrOeAnjQbYC5NaU2bVHcB4/oWM2k4gaYG9gJSEGOIltQx+ rzENo+FDDvPgxJm8jOKj3tFcg+WaX6hotMUqgH6KH30u3eGIzxJh0LlwpY7gWO9LzDt9Zmj/LFJ EiHYeb3tU48LwVSoIhS7JXwyGwMft1QC63+VBAjt2wLdbUJXswba+lMy7a3Tc2ukXnLsEBPMReM 5YV1kVRtpMuqwqv+9/hiuScEJEKupPTtWZjeOtfgpXefmBxYR8uYGGlIZf7emf X-Received: by 2002:a53:ac9d:0:b0:650:3bbc:536e with SMTP id 956f58d0204a3-6504889a766mr14761298d50.68.1775540361886; Mon, 06 Apr 2026 22:39:21 -0700 (PDT) Received: from DEV.lan (c-75-74-152-49.hsd1.fl.comcast.net. [75.74.152.49]) by smtp.gmail.com with ESMTPSA id 956f58d0204a3-6503a978b7csm7217468d50.11.2026.04.06.22.39.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 06 Apr 2026 22:39:21 -0700 (PDT) From: Joshua Klinesmith To: linux-wireless@vger.kernel.org Cc: nbd@nbd.name, lorenzo@kernel.org, ryder.lee@mediatek.com, shayne.chen@mediatek.com, sean.wang@mediatek.com, Joshua Klinesmith Subject: [PATCH wireless v3 0/3] wifi: mt76: clear cipher state on key removal for WED offload Date: Tue, 7 Apr 2026 01:39:14 -0400 Message-ID: <20260407053917.75898-1-joshuaklinesmith@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Clear stale BSS cipher on group key removal so WED-offloaded plaintext traffic is not dropped after switching from encrypted to open/no-encryption mode. Changes since v2: - New patch 1/3: initialize hw_key_idx2 to -1 in mt76_wcid_init() for consistent "no key" sentinel on both key index slots. - Guard cipher clearing on both hw_key_idx == (u8)-1 AND hw_key_idx2 == (u8)-1, so that GTK rotation (new key installed before old removed) and BIGTK removal while another group key is active do not trigger a premature zero-cipher BSS update. Changes since v1: - Rebased on current wireless tree. Joshua Klinesmith (3): wifi: mt76: initialize hw_key_idx2 in mt76_wcid_init wifi: mt76: mt7915: clear cipher state on key removal for WED offload wifi: mt76: mt7996: clear cipher state on key removal for WED offload drivers/net/wireless/mediatek/mt76/mac80211.c | 1 + .../net/wireless/mediatek/mt76/mt7915/main.c | 13 +++++++++++ .../net/wireless/mediatek/mt76/mt7996/main.c | 23 ++++++++++++++++--- 3 files changed, 34 insertions(+), 3 deletions(-) -- 2.43.0