From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-dy1-f182.google.com (mail-dy1-f182.google.com [74.125.82.182]) (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 6EA483A7F57 for ; Thu, 8 Oct 2026 19:16:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.82.182 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791486994; cv=none; b=GPXfkdb+Ivnl6hUNC04bW3MZrIWq3NnZghfl89yBtsm+85t4Nj2Tub47FWJ+QMyCqAtpKPNekPC2d9LqeK9HN002EMW17MatCx7/rJoce1aU5N7lhB/SLypQxKTWBSZQOe4YwVSXtMF4mu1GFOEtAyFfi3ESORb9AtDfiOv0Ho8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791486994; c=relaxed/simple; bh=Zduh2DU6SfY5so6BkNbBiVSWdbKi86BAIrpyrB+S01I=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=OWMKxA+DL/VS77S+iSh43lspsC2TSFbKOZExglLLeTq3f8IlBuBoMwSzVOnG74FfbAtDlbofYLzh8GLPAI4S0gaY32XBU5//BrQ/eb4e/I33b14Zy9LVgFeY9Yw/2uyFVZKVIRZKEL1dloybUFpufDs9uzTd0pTa5z1KsgiR6FA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=trailofbits.com; spf=pass smtp.mailfrom=trailofbits.com; dkim=pass (2048-bit key) header.d=trailofbits.com header.i=@trailofbits.com header.b=MzewuW+y; arc=none smtp.client-ip=74.125.82.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=trailofbits.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=trailofbits.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=trailofbits.com header.i=@trailofbits.com header.b="MzewuW+y" Received: by mail-dy1-f182.google.com with SMTP id 5a478bee46e88-33bf40b0c8bso3149343eec.0 for ; Thu, 08 Oct 2026 12:16:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=trailofbits.com; s=google; t=1791486992; x=1792091792; 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:content-type; bh=sJxEIraSPOLWNZvCZSoZUxwKzeKR9+5tZ/1A97aGpYs=; b=MzewuW+yy0tntgC4TVkCNCgPrac0C+/RrxAqDvhDoT8j1V5scpP5T5ouvln9lblKK3 QH6+bWNHrvnwk1yXsAVtAww8AvQh4MInQJpuzLd3+T324yro++xwBAQGBCv65Mnnif2a pzAVw//myKcVf62DtTJimWTUyPdMoPMjvynE2912Yz6ALLcgMJ1SCcp/tCffOCdoonjL B0lCIOyJAnYR69gLTlxTylv/crXBcv3Zzr20ipcPdCsl3g1Cfa1QE1m49kVWVSgKxETn qNuczwzpnuXUKsgahWEbYvBzL/MffmrZti9uTlRHzyd2gYCQuOcddHtM5o9Tn1BGSEA3 SKUg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1791486992; x=1792091792; 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:content-type; bh=sJxEIraSPOLWNZvCZSoZUxwKzeKR9+5tZ/1A97aGpYs=; b=SDW/2fZUHo0z7/giDK4qmH59XFR1yQK3oQcIUhdeUyG/9DAL6IUDn5CBb6jjY7jNgx wipxci4fSGvr6jUGkHDgYtRDGrgoyKUZYIZBbSXxsPtoCnrikS8T1u+EttK44yJHR3QP zWeJqL69N6aUhpa5Z74M/xnaUywOOAKWhg+37G4sKc/eUeWiqEUDZ3PNSA/gruodh0Tv AvVI8+hKHMC/sLLWfBH/425bKV9XNDWKUNGPpqvOCUr1jXY3yaUlrU7PcR23JVtLakzZ 3JB7k69KmlGja+QCKpkrLbx/ZaZpFY+odo3llJvKRVfT9uc5xd//AT49hnMrfto5KAOc 5Law== X-Forwarded-Encrypted: i=1; AKwUvByIl5cidZ94JMAMkguDwUFZFxZYE42E1BsWeIKa+DyezHdTgt6WPWs6CK+3W6jOymmdRK1c/AL3Ig==@vger.kernel.org X-Gm-Message-State: AFq9FYLS1WQKfFAV7n+f+zlZ5U+WVzavR+2Jh4YlXcS2Lc4WjpW7PcGt Bcq46o/wbwCXTrmurN4/9hGIfijPZouvrzI+Act/LEo9fvfvDByd3URNCAwxjLDBXQI= X-Gm-Gg: AYBFou2YzsVEm6q1JqLsBstTpY4vrcYU8yqRSKei+vnMZlBomjW4C4TjCZ22ZIVgAqn upFpxb92abe5znP4ZE5dpAyrPXmDZfOhwey0jD37fbXI+5D6ayIVD+yPgBxHmsaxVKcji1RO2Ag gUZ4M0sB12ZpXizIPvFcnRBt67JtWssqfft/I8FJYcmA5un7MJbVWDAFoBibNxKtA+zNGwuGLMU C4BdfRArZ3JsRcSPtvqIf5Oeq7bvDhipBnbwolithjrcRJyMmIn5v8Ylzti9TZmKZ+9hc3XzbEC UL0l/dPA/H5jHfX5dwcwdDUfqx3exodF5aMLDx287n0Vxd57Veh3DNKwag8+tHNyExpKzwYyW6X hnOEPZagvRbSG0j2/2VFZg/fpTeHcGtiw8buJUK4Aw7j13Z2gkLGUk5fYIRAciAnqmrGtGjd/Mt 972QodxZHvQarROtrNZ0iY90TrzuyIA3LNSsYmbk8AzzGXNNL3IMhsuni2l4Wj03rzHUOeF9CTm 00PijRXwPcQUnT6wyGPz4DUQ84PKhDRObJOd75ACl6KPcHStX9KvDdgR67dlYVxzr7inrIMXPip SRi8Ig== X-Received: by 2002:a05:7300:881b:b0:351:207d:bff4 with SMTP id 5a478bee46e88-3515db9c789mr8494154eec.4.1791486990854; Thu, 08 Oct 2026 12:16:30 -0700 (PDT) Received: from localhost.localdomain ([2603:8001:5f01:8bab:bc88:5ec1:4f8a:5b23]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-3537cacb5e9sm54053eec.20.2026.10.08.12.16.29 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Thu, 08 Oct 2026 12:16:30 -0700 (PDT) From: Artem Dinaburg To: stable@vger.kernel.org Cc: Artem Dinaburg , Greg Kroah-Hartman , Sasha Levin , Sudeep Holla , Sashiko , Sudeep Holla , Cristian Marussi , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, arm-scmi@vger.kernel.org, viresh.kumar@linaro.org Subject: [PATCH 6.6.y 0/2] firmware: backport CVE-2026-93083, CVE-2026-93093 Date: Thu, 8 Oct 2026 15:16:19 -0400 Message-ID: <20261008191624.98532-1-artem@trailofbits.com> X-Mailer: git-send-email 2.55.0 Precedence: bulk X-Mailing-List: arm-scmi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Hi Greg, Sasha, and maintainers, I'm working through the smaller CVE backports still missing from 6.6.y. These 2 upstream changes belong together for CVE-2026-93083, CVE-2026-93093. They must be applied in this order because the later change depends on or completes the earlier one. The complete series is already present in 6.12.y, 6.18.y, and 7.2.y. Patch 1 also affects 6.1.y and will need a separate backport; this series contains only the 6.6.y patches. Could you please consider this series for 6.6.y? Thanks, Artem Dinaburg Series: 1. firmware: arm_scmi: Publish channel state before callbacks 2. firmware: arm_scmi: Unwind TX receiver mailbox setup failure base: v6.6.157 (79643295eba17affbd16ca97f3ef04c90266b28c) plus stable-queue revision 958ddf240a33ef26b1771be944f0ea6c3b597472