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 C29A53AA9DA for ; Sun, 19 Jul 2026 15:48:05 +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=1784476086; cv=none; b=MvlPctB3qflA4jSi8Q8dm7lQPamqRjOzXv+YNv+Fxd5rKxgaZsfWeJG7dWn0nfvtKqQ2Bqx6lZ/g/6AwjhV2FCETRwFDZ577FVGiefoiGdOvm8kGCnJwwp8htCEB814EVj5Acann1yhcWStQqChqPFsvmvbPfo8Ylu12MY79iG8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784476086; c=relaxed/simple; bh=EBgWlXBsxAJ6x5fjaCa6xpufZ60f39mSRfpiB13CjsE=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=dP0PZjg1VCsCOUf+93xNF5VlzjUEm8i9LCqU92iVYCV+lEVbhtZ/HhYRCUIHmq/DTCqYvyiFeCqlK4XOtwvkh5I52LW2BMCNB3pH6I7FLecoztgFz5RVItrgxjAuePDBuqa8x/OFRdwH00UfT+ro/kQpPFkd9pk5/FXqSY/zf6o= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=0m3fK1CS; 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="0m3fK1CS" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2BCA51F000E9; Sun, 19 Jul 2026 15:48:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1784476085; bh=pU3YIuKVSGme262Gedz5nS5RxgayPV2YOUIAEGsK55w=; h=From:To:Cc:Subject:Date:Reply-To; b=0m3fK1CSvPtTaCdEwhRVE9H/5bG5GWaJ4gboqiG3q25nklcqBZRfoPVypOLxb6Him 1GQJowBfshY8mme2EGur4ZBpa+1PJhR9KRmlrRtyHB/RQHkVp7OYslOZx4kh3tsTFO +2Hhe2c5bu6e5AIYgghoIRKSFyiqmZToDSeB2mR8= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-64170: spi: qup: fix error pointer deref after DMA setup failure Date: Sun, 19 Jul 2026 17:40:32 +0200 Message-ID: <2026071936-CVE-2026-64170-0eeb@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=3487; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=31MyrkQTOPurvZXFVWI+tfD+X25/cJ9DI7PKs/lF3oQ=; b=owGbwMvMwCRo6H6F97bub03G02pJDFkx72uOBx2adFFOVoeFI3hZSOk0wR/xVSd5lNd6Nil9Y VWWKtLuiGVhEGRikBVTZPmyjefo/opDil6Gtqdh5rAygQxh4OIUgIno8zPMj96/+p6s8sbnl7Q8 V00QfMwkoeM2kWHB7NANP5eJGU+L2B7BYS+39Ozyg1aHAA== 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: spi: qup: fix error pointer deref after DMA setup failure The driver falls back to PIO mode if DMA setup fails during probe. Make sure to the clear the DMA channel pointers on setup failure to avoid dereferencing an error pointer (or attempting to release a channel a second time) on later probe errors or driver unbind. This issue was flagged by Sashiko when reviewing a devres allocation conversion patch. The Linux kernel CVE team has assigned CVE-2026-64170 to this issue. Affected and fixed versions =========================== Issue introduced in 4.1 with commit 612762e82ae6058d69b4ce734598491bf030afe7 and fixed in 5.10.259 with commit 0bb3bd442f0bdad3932739a61dd6c580c9c1955e Issue introduced in 4.1 with commit 612762e82ae6058d69b4ce734598491bf030afe7 and fixed in 5.15.210 with commit d577c55d189e7ae150973058d13e299b6855633f Issue introduced in 4.1 with commit 612762e82ae6058d69b4ce734598491bf030afe7 and fixed in 6.1.176 with commit 9e673affb92c29d9ba879bf4ea81c5e840166b56 Issue introduced in 4.1 with commit 612762e82ae6058d69b4ce734598491bf030afe7 and fixed in 6.6.142 with commit 45760b72e84c1a1498f1a8a9047184c85299da20 Issue introduced in 4.1 with commit 612762e82ae6058d69b4ce734598491bf030afe7 and fixed in 6.12.92 with commit 8f9b61d255b1e989b8913b06c8ebe0aba5e1b238 Issue introduced in 4.1 with commit 612762e82ae6058d69b4ce734598491bf030afe7 and fixed in 6.18.34 with commit 4bb4764f2c51f03f657a28029eb0595d8223aab5 Issue introduced in 4.1 with commit 612762e82ae6058d69b4ce734598491bf030afe7 and fixed in 7.0.11 with commit 4f4051e9d644c371c50de4a042b85bba6727d5c3 Issue introduced in 4.1 with commit 612762e82ae6058d69b4ce734598491bf030afe7 and fixed in 7.1 with commit a7e8f3efd50a165ba0189f6dc57f7e51a7d149db 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-2026-64170 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/spi/spi-qup.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/0bb3bd442f0bdad3932739a61dd6c580c9c1955e https://git.kernel.org/stable/c/d577c55d189e7ae150973058d13e299b6855633f https://git.kernel.org/stable/c/9e673affb92c29d9ba879bf4ea81c5e840166b56 https://git.kernel.org/stable/c/45760b72e84c1a1498f1a8a9047184c85299da20 https://git.kernel.org/stable/c/8f9b61d255b1e989b8913b06c8ebe0aba5e1b238 https://git.kernel.org/stable/c/4bb4764f2c51f03f657a28029eb0595d8223aab5 https://git.kernel.org/stable/c/4f4051e9d644c371c50de4a042b85bba6727d5c3 https://git.kernel.org/stable/c/a7e8f3efd50a165ba0189f6dc57f7e51a7d149db