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 5C28A4FB9D1 for ; Wed, 16 Sep 2026 10:40:43 +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=1789555259; cv=none; b=BL2xtVA95K+HfqKiqzwbN+FkkKL5LjTk/cX7jYKotMTqeEWDITu/MhYnr59SCpLWts7QHoR6OEvA2Q5MCeFfPS1+8xvxEqZArtn0DACnto7B3z1ofn18Z8pXYP0/oXMMM7izt6LUrh2CyAILISNUcNPo+6Y/A/kZpasKF4UOe8A= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789555259; c=relaxed/simple; bh=gmTfAPxNE0JHG8KYY1s9PdpedoSgp53p+DqENaQ9cuY=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=HJJtHLPGOW8c8CcjgZR79JxWlh9SspffpvrlotJFgdsmwn1emv973bk2Qhp+djYdYMRbAnxp/4ebqDFJDO27hsi1OeBIGgmCq7+gb/aoao35sDm72RGEySARyMwD0nU0CUKnUeTyhcGpOVyvEvpTqLir7Iolck0cGAduFRAIC40= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=H00ksBqs; 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="H00ksBqs" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1F6921F00899; Wed, 16 Sep 2026 10:40:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789555241; bh=W7K7z2SZ22+A+pmzi+INvfvjyjYXjv65/GqMBOhoUiQ=; h=From:To:Cc:Subject:Date:Reply-To; b=H00ksBqs1cZn8eTl4o4MnObcuh95UfvRQipRjQ0Rl5ARnn+qmzNXCW3Q22kDeb5Rq Q3BAMk6XztagW/6wx22CM1kqcRMWKfOanq6vGes4EAIQL0N7+cPtibPOreYk08rAmm DZ6nTLHby/SWH6O1u40mQ3WLUmRz7399wOzOTlqk= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-89952: mtd: rawnand: validate ONFI extended parameter page sections Date: Wed, 16 Sep 2026 11:31:22 +0100 Message-ID: <2026091649-CVE-2026-89952-c477@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=3733; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=JiHYLH0JLWxjrUU+ng54449j63JHJeVpSO4J5SPkxL0=; b=owGbwMvMwCRo6H6F97bub03G02pJDFmr8udGH8/2+5D/bfVPTU4GhvX7/iXyZPLzX5PTvL1o9 ey9TXwxHbEsDIJMDLJiiixftvEc3V9xSNHL0PY0zBxWJpAhDFycAjCR2UsZ5pdFqEjPSc/4eEOv oL2wIOeZ0vl/ZxjmGe27vKqfTXSG/BMlialN1y6k9XQYAwA= 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: mtd: rawnand: validate ONFI extended parameter page sections nand_flash_detect_ext_param_page() allocates the length declared by the ONFI parameter page, then treats the data as a fixed header followed by variable-length sections. It reads that header and advances over sections without first proving that the fixed page and each current section fit in the allocation. Reject pages shorter than the fixed header, track the remaining variable area while walking sections, and require the ECC section to contain every field read from struct onfi_ext_ecc_info. Use device-scoped diagnostics that identify the malformed ONFI section. The Linux kernel CVE team has assigned CVE-2026-89952 to this issue. Affected and fixed versions =========================== Issue introduced in 3.12 with commit 6dcbe0cdd83fb5f77be4f44c9e06c535281c375a and fixed in 5.10.270 with commit 1bf148fabe6463422195b7cc43b3412533f1dc21 Issue introduced in 3.12 with commit 6dcbe0cdd83fb5f77be4f44c9e06c535281c375a and fixed in 5.15.221 with commit c7df90bbda71549bfd981bf478ad04ddfccf4e0d Issue introduced in 3.12 with commit 6dcbe0cdd83fb5f77be4f44c9e06c535281c375a and fixed in 6.1.188 with commit 86948f81964e40cd6472d76a6371e4f297d84db0 Issue introduced in 3.12 with commit 6dcbe0cdd83fb5f77be4f44c9e06c535281c375a and fixed in 6.6.157 with commit ddb6ddf5be7429bb98b3368c883be51f00b31678 Issue introduced in 3.12 with commit 6dcbe0cdd83fb5f77be4f44c9e06c535281c375a and fixed in 6.12.110 with commit 12a63a0f0d17b2d26211b2524ded91a67dd5c99c Issue introduced in 3.12 with commit 6dcbe0cdd83fb5f77be4f44c9e06c535281c375a and fixed in 6.18.51 with commit c8f86e375b39cada09fd8cb33dd3bb3641e84a62 Issue introduced in 3.12 with commit 6dcbe0cdd83fb5f77be4f44c9e06c535281c375a and fixed in 7.2.5 with commit 23e747fe585830c43095c37c85b2757231c6917f Issue introduced in 3.12 with commit 6dcbe0cdd83fb5f77be4f44c9e06c535281c375a and fixed in 7.3-rc1 with commit e5e415262330bd70f983e091d8919d9dcd99e475 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-2026-89952 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/mtd/nand/raw/nand_onfi.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/1bf148fabe6463422195b7cc43b3412533f1dc21 https://git.kernel.org/stable/c/c7df90bbda71549bfd981bf478ad04ddfccf4e0d https://git.kernel.org/stable/c/86948f81964e40cd6472d76a6371e4f297d84db0 https://git.kernel.org/stable/c/ddb6ddf5be7429bb98b3368c883be51f00b31678 https://git.kernel.org/stable/c/12a63a0f0d17b2d26211b2524ded91a67dd5c99c https://git.kernel.org/stable/c/c8f86e375b39cada09fd8cb33dd3bb3641e84a62 https://git.kernel.org/stable/c/23e747fe585830c43095c37c85b2757231c6917f https://git.kernel.org/stable/c/e5e415262330bd70f983e091d8919d9dcd99e475