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 DF3693AA9DA for ; Sun, 19 Jul 2026 15:48:02 +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=1784476083; cv=none; b=djrX/fBPtd2GLlf/BeQCPmZ0j3BPGOIJl2TE/H8LI1SOXhwdrwsnaM5rmt4V2BRNznyi/Rf8Ea9w0hG35za+LivEkHFiPsNYK1Ji1vNx848n0G+fdIF/DRDz1NlpjiwykjbI2MQUhZaxCNeeGNEu8yZ+80YYzll4c6r6yMYtr88= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784476083; c=relaxed/simple; bh=XGCrLuE5epFw/Ikb1Dg7PxxLM1kx7McIaKEIUVA4914=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=dObiPkF/O8z2WXgJHe6v94o8bxhCs5MqJel/EaBEMCaTLyXnr9PxRQpHhGkfPcOZRnjXYgXbLL6Wmbqk5McaLA09C5NzK4fEVnSvORauDUZqznvsUdKR5IRzhiRohbwZ25Q3QWtJBO77A+xJvIPgZuLw6KDTqX1wb6GuN5c4zTc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=g5L4v7E6; 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="g5L4v7E6" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4EF5E1F000E9; Sun, 19 Jul 2026 15:48:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1784476082; bh=hrSB7Tho/C8IEVaRN4R124hXzg26c1ab7xaES7xWo90=; h=From:To:Cc:Subject:Date:Reply-To; b=g5L4v7E6gLF63Bl5sF/JmfwoFnDEINhrKui6U329TI4jsVYxVjqOwCjapeYdIRNs5 gNqeccmPOIqLxUau2QHq2WIHy9qkMUUp2KdYuRPFodkgFCYDNevHxvZdqgGomPcSSN mbotLfP80Lf2TKXL671i2oDjCmG0AmAK6KmdgslA= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-64169: spi: ep93xx: fix error pointer deref after DMA setup failure Date: Sun, 19 Jul 2026 17:40:31 +0200 Message-ID: <2026071935-CVE-2026-64169-5c69@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=2532; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=56uLsvxcWsrOHrlRDrVd78ZEe/paAoNXOe+oCiXDHqc=; b=owGbwMvMwCRo6H6F97bub03G02pJDFkx76v9vdqO85Y8YUl9wmnLv7bDMd389Zw9FRu+abMc/ rPZZCpfRywLgyATg6yYIsuXbTxH91ccUvQytD0NM4eVCWQIAxenAEzkwlGGeWbSlw0j50R6/qrM Up/08vCtbsMUNob52SXPl/QHKRYtb3fpE/+284Kh5tuHAA== 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: ep93xx: 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 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-2026-64169 to this issue. Affected and fixed versions =========================== Issue introduced in 6.12 with commit e79e7c2df6277ee1ad9364a231f6183da4492415 and fixed in 6.12.92 with commit b6c0dabea07e25bd7db19a77ebfd0d02b9e2671a Issue introduced in 6.12 with commit e79e7c2df6277ee1ad9364a231f6183da4492415 and fixed in 6.18.34 with commit 8e027db9fa310b1d5e7ad928510be800c4f004d9 Issue introduced in 6.12 with commit e79e7c2df6277ee1ad9364a231f6183da4492415 and fixed in 7.0.11 with commit 0e2189ab095e3657f37b8295f3f2bbcde0f27529 Issue introduced in 6.12 with commit e79e7c2df6277ee1ad9364a231f6183da4492415 and fixed in 7.1 with commit 5e121a81667a83e9a01d62b429e340f5a4a84abc 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-2026-64169 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-ep93xx.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/b6c0dabea07e25bd7db19a77ebfd0d02b9e2671a https://git.kernel.org/stable/c/8e027db9fa310b1d5e7ad928510be800c4f004d9 https://git.kernel.org/stable/c/0e2189ab095e3657f37b8295f3f2bbcde0f27529 https://git.kernel.org/stable/c/5e121a81667a83e9a01d62b429e340f5a4a84abc