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 29FE83AA9D4 for ; Sun, 19 Jul 2026 15:48:00 +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=1784476081; cv=none; b=iB/hl5ivUygADOuki3zHnkWrGdSu9ttBqfvwfYn8NVtRuVxZx3wuIxGCaaLjaz2VE5GHdKoUTDyVH4qNf/UF+GyAwCqFqxbDa8QcSsC2DgKz8YiTrjUAIPbG3CXinO5uBq+TPrJl/Js2f5JZS++V1dJNUgaTcQ2sRa9otCkf+LQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784476081; c=relaxed/simple; bh=G6y4RgNFidH1GTIQebiEdIiZjv81hV2SBDYCvOpmqQs=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=HdkHDPgabi917bsKXYfD/8l782xmsYxaZWv/pWgAAv5vSxZsVXxF2otmcvpgtNYXIZKIHqxSPpyjx6X9HXhN2Gzzz1Hjp7AQ9kSH238vlKHXZSXlwyBa/iqrTiQgBRLFnN8o+nYEOE0QduLbhY1lxpDtlp1az3PZQFi9jbnu2tA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=CzIB1PiA; 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="CzIB1PiA" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 863CE1F000E9; Sun, 19 Jul 2026 15:47:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1784476080; bh=VgzJaB5spGVXsopEmYvXqRqWN++qugAOcoL0848B2/M=; h=From:To:Cc:Subject:Date:Reply-To; b=CzIB1PiAmu0JiGbIi9HP2d+V6LEqN7vZIjtOl/rf/+nobh2730BZOTLp7fPwxViPW IcGB1omJ7959A6leoc8XqxDIBhjSCt45TBmQqCWKL3v4msTudJ0Gr2T71tCCk08Gvl 8zM2p8M86jUfaqR64fCYuFLHkZ6oOblecLscmXxI= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-64168: spi: sprd: fix error pointer deref after DMA setup failure Date: Sun, 19 Jul 2026 17:40:30 +0200 Message-ID: <2026071935-CVE-2026-64168-2d86@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=3493; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=o0bAxeqQ4S0nUsXQejDz8Yw5bxI7/27X7n2yEw+XdRA=; b=owGbwMvMwCRo6H6F97bub03G02pJDFkx76svOuvMNZveOffldIu7WjNrOLsObk54kjR989nYX 9HBD+7odsSyMAgyMciKKbJ82cZzdH/FIUUvQ9vTMHNYmUCGMHBxCsBEQgIZ5odMS7bbErxaLf2r 0ck5opfV9Nm3czMsOLWc973FxG3Lfl6v1si8rvDu3QJuUwA= 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: sprd: fix error pointer deref after DMA setup failure The driver falls back to PIO mode if DMA setup fails during probe. Make sure to check the dma.enabled flag before trying to release the DMA channels also on late probe errors to avoid dereferencing an error pointer (or attempting to release a channel a second time). This issue was flagged by Sashiko when reviewing a devres allocation conversion patch. The Linux kernel CVE team has assigned CVE-2026-64168 to this issue. Affected and fixed versions =========================== Issue introduced in 5.1 with commit 386119bc7be9fa5114ced0274a22a943df890b4b and fixed in 5.10.258 with commit be74e276111f3c23b8e040c8c5e308f67a573add Issue introduced in 5.1 with commit 386119bc7be9fa5114ced0274a22a943df890b4b and fixed in 5.15.209 with commit a8f233fb0c7be29b97cd249f64120bf35ce72805 Issue introduced in 5.1 with commit 386119bc7be9fa5114ced0274a22a943df890b4b and fixed in 6.1.175 with commit 0cdea166c1a07c200caf9d0b722224fca43b23ae Issue introduced in 5.1 with commit 386119bc7be9fa5114ced0274a22a943df890b4b and fixed in 6.6.142 with commit 450c319dd04d0eeff4184889768f7ada826a2e35 Issue introduced in 5.1 with commit 386119bc7be9fa5114ced0274a22a943df890b4b and fixed in 6.12.92 with commit b6f1acf4e57ccf708cdc0cb70f5bb5b65162963b Issue introduced in 5.1 with commit 386119bc7be9fa5114ced0274a22a943df890b4b and fixed in 6.18.34 with commit be409d2bbe9ca7da7b05cc7dde7499bc481f0766 Issue introduced in 5.1 with commit 386119bc7be9fa5114ced0274a22a943df890b4b and fixed in 7.0.11 with commit c33b4496e95d04722055446c0a31213639438536 Issue introduced in 5.1 with commit 386119bc7be9fa5114ced0274a22a943df890b4b and fixed in 7.1 with commit 3d67fffb74267772d461c02c67f1eff893ad547d 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-2026-64168 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-sprd.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/be74e276111f3c23b8e040c8c5e308f67a573add https://git.kernel.org/stable/c/a8f233fb0c7be29b97cd249f64120bf35ce72805 https://git.kernel.org/stable/c/0cdea166c1a07c200caf9d0b722224fca43b23ae https://git.kernel.org/stable/c/450c319dd04d0eeff4184889768f7ada826a2e35 https://git.kernel.org/stable/c/b6f1acf4e57ccf708cdc0cb70f5bb5b65162963b https://git.kernel.org/stable/c/be409d2bbe9ca7da7b05cc7dde7499bc481f0766 https://git.kernel.org/stable/c/c33b4496e95d04722055446c0a31213639438536 https://git.kernel.org/stable/c/3d67fffb74267772d461c02c67f1eff893ad547d