From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 165D243E487 for ; Thu, 3 Sep 2026 08:26:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788424016; cv=none; b=b0PPLvEoDRipYVcO1LAZwvgQ9EAb6GhEgIIgBp+hGW0829azNKEpjRbU7G96bhu4YJLVw9A0cy7dvWnpjpayF/oNuivavxGqi4Jyo7VZOLQFxZPbWmjGraMSadVCu/WNlRs+ufqeWrkdjEfvK2XHK16qNulL5WrRXpByvyCRjiY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788424016; c=relaxed/simple; bh=D+qgKafQEm/IHLlons/6VdXlJnnmF2JiMwOVYuBu13k=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=hHjnKB4OVDAXzK2QphdYr9kklBOt1oo01vygp+5y58gRqUQnJOvxWBDfHGfErTCtSQeTlIc3CsSElhRx/AVhrUi/FLb2W07N4rhJStBl/5d859k28sGGLUGVCjIx/UCq+PsgvkUze0iaaTnWNDXpjKHxvoBqP98N2Z8i2kaF/Jc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=0bGBB2mq; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="0bGBB2mq" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 030121F000E9; Thu, 3 Sep 2026 08:26:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1788424014; bh=F6Tb9oEZbiazj155xXDmDQc3mM0sfJcGaVKiaYOryTc=; h=From:To:Cc:Subject:Date:Reply-To; b=0bGBB2mqutJGLNjrtk4MA6PsuT+D9rymBjkqtgPxDp+oUO4ykyNJoMbViqGYn8okR 8YXk9fQHKoFCmokm8AWCVy9pajizJ7tLuRIFYXO+XZV0BowEZ1l4MGy8+DgUXd4NNG oV2vkon/Tt3FLrkiTDEScvTwAjm/sHyoAQwOXs0o= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-80750: pmdomain: mediatek: fix remaining %pOF after of_node_put() Date: Thu, 3 Sep 2026 10:26:47 +0200 Message-ID: <2026090339-CVE-2026-80750-e894@gregkh> X-Mailer: git-send-email 2.55.0 Reply-To: , Precedence: bulk X-Mailing-List: linux-cve-announce@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2569; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=1J6eUx0s7qhqOVrPiw+JGBx3QFY9guDxaogD8atycnM=; b=owGbwMvMwCRo6H6F97bub03G02pJDFkz9e3vXuOZePivqcMn+xJrpSd7M1tYlx4WTFDbnpbkk vbm2NasjlgWBkEmBlkxRZYv23iO7q84pOhlaHsaZg4rE8gQBi5OAZhIZAPD/JqNHU/bVI6mKnCt +q/T3Dr9/qUSboYFG9ZGaqWX7jyx1WFe0os77Ss3T9KTBwA= X-Developer-Key: i=gregkh@linuxfoundation.org; a=openpgp; fpr=F4B60CC5BF78C2214A313DCB3147D40DDB2DFB29 Content-Transfer-Encoding: 8bit From: Greg Kroah-Hartman Description =========== In the Linux kernel, the following vulnerability has been resolved: pmdomain: mediatek: fix remaining %pOF after of_node_put() scpsys_get_bus_protection_legacy() looks up several legacy bus protection regmaps from device-tree nodes. Two error paths put the device node before checking whether the regmap lookup failed, but still pass that node to dev_err_probe() with %pOF on failure. If of_node_put() drops the last reference, the later %pOF formatting can dereference a freed device node. Keep the node reference until after the error message has been emitted in the infracfg and SMI lookup paths. Also drop the SMI node before returning when the SMI phandle is missing. The Linux kernel CVE team has assigned CVE-2026-80750 to this issue. Affected and fixed versions =========================== Issue introduced in 6.18 with commit c29345fa5f66bea0790cf2219f57b974d4fc177b and fixed in 6.18.46 with commit 970b9c83a07c405fdd32bcce7cc4c9e670e58875 Issue introduced in 6.18 with commit c29345fa5f66bea0790cf2219f57b974d4fc177b and fixed in 7.1.10 with commit 10bf2d7261d7f724ed43a09eea4c90c19c0230a0 Issue introduced in 6.18 with commit c29345fa5f66bea0790cf2219f57b974d4fc177b and fixed in 7.2 with commit 3e013bc8b941bd52c8e3a99798d0ae8792cb71ca Please see https://www.kernel.org for a full list of currently supported kernel versions by the kernel community. Unaffected versions might change over time as fixes are backported to older supported kernel versions. The official CVE entry at https://cve.org/CVERecord/?id=CVE-2026-80750 will be updated if fixes are backported, please check that for the most up to date information about this issue. Affected files ============== The file(s) affected by this issue are: drivers/pmdomain/mediatek/mtk-pm-domains.c Mitigation ========== The Linux kernel CVE team recommends that you update to the latest stable kernel version for this, and many other bugfixes. Individual changes are never tested alone, but rather are part of a larger kernel release. Cherry-picking individual commits is not recommended or supported by the Linux kernel community at all. If however, updating to the latest release is impossible, the individual changes to resolve this issue can be found at these commits: https://git.kernel.org/stable/c/970b9c83a07c405fdd32bcce7cc4c9e670e58875 https://git.kernel.org/stable/c/10bf2d7261d7f724ed43a09eea4c90c19c0230a0 https://git.kernel.org/stable/c/3e013bc8b941bd52c8e3a99798d0ae8792cb71ca