From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 73CB3146580 for ; Tue, 21 May 2024 15:36:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716305779; cv=none; b=q/tXVfyE9QydmGbTjpUd9x6vZrYD9QqmbcL3Ur75faf/EhjmU3XiPA0qI6IeUlgvwue5CeucsL/GOX9j4ED8VhLrTmeotMqz/GCiXf0wJtYumJmVwOWLiTdLuL7HxjNqsrTMy07Iq0Yy/iivEdZWq4QzX1L/21YxNwXgJFd2Ak0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716305779; c=relaxed/simple; bh=5j/Y1A1PL+XIn0qX8lmYRC9xC6Nt0fUIylqKQIfCPTk=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=nb0FrTmR6ZOghUSyV/G+IDSC4aG90uCAHyEiT417kQAgLfDvfg+6dL6nqnD1fuGsxXGCWL8ibtdY523yhWNUyqYtZ5ZY0ZgqWAKtheWcZxiPFJuFaHTcZdlFB5mvktn8cwNY2AC7QrlBsyEFW5Xis2KERlfdWduiTZ44736XPVY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=o1ofVPo2; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="o1ofVPo2" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9D729C2BD11; Tue, 21 May 2024 15:36:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1716305779; bh=5j/Y1A1PL+XIn0qX8lmYRC9xC6Nt0fUIylqKQIfCPTk=; h=From:To:Cc:Subject:Date:Reply-to:From; b=o1ofVPo2MPElIH4wlB/iu34yqBtCjQn9WKtLRrgM4Shf3IFp+C8uYM4j4ApMPQgp7 Xh/4DEA7gLcDuu7SodRwuG20enIRE7WTFgGj5gIuMVJQ89QFnWLnR+sQPx0beqA6CZ 0hZykq277vrls+1vQ8pRLLTxxNiGcbHQqQ1gyn9k= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2023-52802: iio: adc: stm32-adc: harden against NULL pointer deref in stm32_adc_probe() Date: Tue, 21 May 2024 17:31:38 +0200 Message-ID: <2024052159-CVE-2023-52802-81ce@gregkh> X-Mailer: git-send-email 2.45.1 Precedence: bulk X-Mailing-List: linux-cve-announce@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Reply-to: , X-Developer-Signature: v=1; a=openpgp-sha256; l=1997; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=5j/Y1A1PL+XIn0qX8lmYRC9xC6Nt0fUIylqKQIfCPTk=; b=owGbwMvMwCRo6H6F97bub03G02pJDGk++0xiX//lNIrQe1s6b0t5823RC3fcV3oKauvUM9+sa wgqW2nSEcvCIMjEICumyPJlG8/R/RWHFL0MbU/DzGFlAhnCwMUpABO5fIRhfkmB9m/9X8tWXH3T m1x0Lt2idCmXGMM8S+EYuZS4eL4625JjCy8k33r0deVvAA== X-Developer-Key: i=gregkh@linuxfoundation.org; a=openpgp; fpr=F4B60CC5BF78C2214A313DCB3147D40DDB2DFB29 Content-Transfer-Encoding: 8bit Description =========== In the Linux kernel, the following vulnerability has been resolved: iio: adc: stm32-adc: harden against NULL pointer deref in stm32_adc_probe() of_match_device() may fail and returns a NULL pointer. In practice there is no known reasonable way to trigger this, but in case one is added in future, harden the code by adding the check The Linux kernel CVE team has assigned CVE-2023-52802 to this issue. Affected and fixed versions =========================== Fixed in 6.1.64 with commit b80aaff5f781 Fixed in 6.5.13 with commit b028f89c56e9 Fixed in 6.6.3 with commit 5b82e4240533 Fixed in 6.7 with commit 3a23b384e7e3 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-2023-52802 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/iio/adc/stm32-adc-core.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/b80aaff5f7817d50798ac61ed75973f004dd5202 https://git.kernel.org/stable/c/b028f89c56e964a22d3ddb8eab1a0e7e980841b9 https://git.kernel.org/stable/c/5b82e4240533bcd4691e50b64ec86d0d7fbd21b9 https://git.kernel.org/stable/c/3a23b384e7e3d64d5587ad10729a34d4f761517e