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 D01043E8686 for ; Mon, 20 Jul 2026 15:02:30 +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=1784559752; cv=none; b=inkatb765hIi2CHUjDcCnuBGfgg+9MzNgH04E4U2lz1l3r8R9dqj1ig64H1+TNkkehLfRivyCAMIy50pZfoh5Pa7bdcMl/ZLZZ/Yv+bl4tunZut+UhD6SuezKfiTGmius4oxXaOZp8kkXljsqnkTpFF49fsmpTwoAsmg+1kvF6A= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784559752; c=relaxed/simple; bh=Y2ZeBEj4lATXWievA1Z+YyoCzT6n/Or0gLTdQ/fiNJE=; h=Subject:To:Cc:From:Date:Message-ID:MIME-Version:Content-Type; b=VOWWbLYdH0g9rdcyqQBAC5S8YOlzab/H3nvaMCt33+E0D6qVxetZpBPUwHuUS6hcnl/jrNoknz4T0rf6Zt2sQJUhAFENIKYvnMrmAsi/K/dZuKbzTOZ8xO2slrTu9YOFIcFYRLgNu2uHBYwUMdQxL4Cyju0Xt1HqbdO9g5UMHvQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=OxfMiP9/; 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="OxfMiP9/" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 40D011F000E9; Mon, 20 Jul 2026 15:02:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1784559750; bh=tfRauRthBN1zXAz/aMjtel15L7d6Cu/Do/WL/+SQhFM=; h=Subject:To:Cc:From:Date; b=OxfMiP9/HxUfphcl9ea5HrFPb0HjOi42S/NaOnKQZdqZnVc2zI5yvW16iPAbtaIHR VHwjWZsveLsai4zTfudMGCTv3JfRdlOAxgpFqfkr1aaC2ueSvoKznMNmlZ4RDYSjzQ omllkZ2iFNKfce7tbMAci3aId9xNnbQu/Tg2vLwg= Subject: FAILED: patch "[PATCH] dmaengine: dw-edma-pcie: Reject devices without driver data" failed to apply to 6.1-stable tree To: den@valinux.co.jp,Frank.Li@nxp.com,vkoul@kernel.org Cc: From: Date: Mon, 20 Jul 2026 17:02:11 +0200 Message-ID: <2026072011-halogen-cried-1991@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit The patch below does not apply to the 6.1-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.1.y git checkout FETCH_HEAD git cherry-pick -x 11d7cfe0c119691b2dafbb699bbca90258c678aa # git commit -s git send-email --to '' --in-reply-to '2026072011-halogen-cried-1991@gregkh' --subject-prefix 'PATCH 6.1.y' 'HEAD^..' Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 11d7cfe0c119691b2dafbb699bbca90258c678aa Mon Sep 17 00:00:00 2001 From: Koichiro Den Date: Thu, 21 May 2026 23:21:51 +0900 Subject: [PATCH] dmaengine: dw-edma-pcie: Reject devices without driver data dw_edma_pcie_probe() treats the PCI device ID driver_data as the template for the controller layout and copies it unconditionally. A device bound dynamically via sysfs can match the driver without that data, which leads to a NULL pointer dereference. Reject such matches before enabling the device. Fixes: 41aaff2a2ac0 ("dmaengine: Add Synopsys eDMA IP PCIe glue-logic") Cc: stable@vger.kernel.org Signed-off-by: Koichiro Den Reviewed-by: Frank Li Link: https://patch.msgid.link/20260521142153.2957432-3-den@valinux.co.jp Signed-off-by: Vinod Koul diff --git a/drivers/dma/dw-edma/dw-edma-pcie.c b/drivers/dma/dw-edma/dw-edma-pcie.c index 2082d0021a8d..791c46e8ae4c 100644 --- a/drivers/dma/dw-edma/dw-edma-pcie.c +++ b/drivers/dma/dw-edma/dw-edma-pcie.c @@ -328,6 +328,9 @@ static int dw_edma_pcie_probe(struct pci_dev *pdev, int i, mask; bool non_ll = false; + if (!pdata) + return -ENODEV; + struct dw_edma_pcie_data *vsec_data __free(kfree) = kmalloc_obj(*vsec_data); if (!vsec_data)