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GET /api/1.1/patches/2222926/?format=api
{ "id": 2222926, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2222926/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/patch/20260414024544.2975605-5-duziming2@huawei.com/", "project": { "id": 28, "url": "http://patchwork.ozlabs.org/api/1.1/projects/28/?format=api", "name": "Linux PCI development", "link_name": "linux-pci", "list_id": "linux-pci.vger.kernel.org", "list_email": "linux-pci@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null }, "msgid": "<20260414024544.2975605-5-duziming2@huawei.com>", "date": "2026-04-14T02:45:44", "name": "[4/4] PCI: Prevent overflow in proc_bus_pci_read()", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "c96b7842156f557c8ea780b1b594d4cc4815ab44", "submitter": { "id": 92271, "url": "http://patchwork.ozlabs.org/api/1.1/people/92271/?format=api", "name": "Ziming Du", "email": "duziming2@huawei.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-pci/patch/20260414024544.2975605-5-duziming2@huawei.com/mbox/", "series": [ { "id": 499767, "url": "http://patchwork.ozlabs.org/api/1.1/series/499767/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/list/?series=499767", "date": "2026-04-14T02:45:42", "name": "PCI: Fix procfs PCI config access issues", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/499767/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2222926/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2222926/checks/", "tags": {}, "headers": { "Return-Path": "\n <linux-pci+bounces-52463-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-pci@vger.kernel.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=huawei.com header.i=@huawei.com header.a=rsa-sha256\n header.s=dkim header.b=6XizOr64;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=172.105.105.114; helo=tor.lore.kernel.org;\n envelope-from=linux-pci+bounces-52463-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)", "smtp.subspace.kernel.org;\n\tdkim=pass (1024-bit key) header.d=huawei.com header.i=@huawei.com\n header.b=\"6XizOr64\"", "smtp.subspace.kernel.org;\n arc=none smtp.client-ip=113.46.200.220", "smtp.subspace.kernel.org;\n dmarc=pass (p=quarantine dis=none) header.from=huawei.com", "smtp.subspace.kernel.org;\n spf=pass smtp.mailfrom=huawei.com" ], "Received": [ "from tor.lore.kernel.org (tor.lore.kernel.org [172.105.105.114])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature ECDSA (secp384r1) server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fvp3D0895z1y2d\n\tfor <incoming@patchwork.ozlabs.org>; Tue, 14 Apr 2026 12:23:04 +1000 (AEST)", "from smtp.subspace.kernel.org (conduit.subspace.kernel.org\n [100.90.174.1])\n\tby tor.lore.kernel.org (Postfix) with ESMTP id 7E2DA302D977\n\tfor <incoming@patchwork.ozlabs.org>; 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Tue, 14 Apr 2026 10:22:26 +0800" ], "ARC-Seal": "i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1776133351; cv=none;\n b=Y4GseAtqhuwbccT4Cu3fDWR6ws821woaRvj+dTtBYP1xlG5wPNjQY3IhjzLvxZwMUR6hzqgV4i4bVcXZkMCJvLYB5NjQuJl0bfQYWa5IC16HKpvH79y44i7F8Lj3+tOxVqul2VF+9r9kgOoKQJ957Ykjw2z8a9thHpp1RJuqYHk=", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1776133351; c=relaxed/simple;\n\tbh=FS1SeOowBA8gVevNxsZJHOuY/+0HP+CQiKPo21lhM/E=;\n\th=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References:\n\t MIME-Version:Content-Type;\n b=R3xxB4Kh90h9tF7WHvQt3IEidiuMbWuO9pYbkvE3suvdnHchR40lgmklL2P2UyMftU9hr/rv3xv/1JRceakndEj4o4h77VBAX2BwqKMlan0cReNRUJbStL0AmfovqxDSzI0mRK0HpcWp4NJvI33fwt0/vHWjo2roPpRQ9PA+lrc=", "ARC-Authentication-Results": "i=1; smtp.subspace.kernel.org;\n dmarc=pass (p=quarantine dis=none) header.from=huawei.com;\n spf=pass smtp.mailfrom=huawei.com;\n dkim=pass (1024-bit key) header.d=huawei.com header.i=@huawei.com\n header.b=6XizOr64; arc=none smtp.client-ip=113.46.200.220", "dkim-signature": "v=1; a=rsa-sha256; d=huawei.com; s=dkim;\n\tc=relaxed/relaxed; q=dns/txt;\n\th=From;\n\tbh=qzl/k/41auKXeIJoyyj8kJiE746ZRuL8fpePAiVIFKA=;\n\tb=6XizOr64tVdveY4iAm9fCU/G8D5ioZ293uPIDR5NVwmM9mYeYpLmin2rN2ppXYZ/i6CE1B5lQ\n\tNDU1ddxR5YhsWFwcik9zSAC5JnKmeOVhYzwh8oj0D7yMkjXNvxRPhhlYVylolDL3sZ2jCjQTz7S\n\tqX0GFx5ihCanyPddXHMQmgE=", "From": "Ziming Du <duziming2@huawei.com>", "To": "<bhelgaas@google.com>", "CC": "<linux-pci@vger.kernel.org>, <linux-kernel@vger.kernel.org>,\n\t<liuyongqiang13@huawei.com>, <duziming2@huawei.com>", "Subject": "[PATCH 4/4] PCI: Prevent overflow in proc_bus_pci_read()", "Date": "Tue, 14 Apr 2026 10:45:44 +0800", "Message-ID": "<20260414024544.2975605-5-duziming2@huawei.com>", "X-Mailer": "git-send-email 2.43.0", "In-Reply-To": "<20260414024544.2975605-1-duziming2@huawei.com>", "References": "<20260414024544.2975605-1-duziming2@huawei.com>", "Precedence": "bulk", "X-Mailing-List": "linux-pci@vger.kernel.org", "List-Id": "<linux-pci.vger.kernel.org>", "List-Subscribe": "<mailto:linux-pci+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-pci+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"UTF-8\"", "Content-Transfer-Encoding": "8bit", "X-ClientProxiedBy": "kwepems500002.china.huawei.com (7.221.188.17) To\n kwepemr500012.china.huawei.com (7.202.195.23)" }, "content": "proc_bus_pci_read() assigns the 64-bit loff_t *ppos directly to a 32-bit\ninteger variable. For large offsets, such as 0x100000000, this\nimplicit conversion could truncate the value and incorrectly consider the\noffset as valid.\n\nFix this by changing the type of off to loff_t.\n\nFixes: 1da177e4c3f4 (\"Linux-2.6.12-rc2\")\nSigned-off-by: Ziming Du <duziming2@huawei.com>\nSuggested-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>\n---\n drivers/pci/proc.c | 2 +-\n 1 file changed, 1 insertion(+), 1 deletion(-)", "diff": "diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c\nindex a5db7d23353a..f11f48becf52 100644\n--- a/drivers/pci/proc.c\n+++ b/drivers/pci/proc.c\n@@ -29,7 +29,7 @@ static ssize_t proc_bus_pci_read(struct file *file, char __user *buf,\n \t\t\t\t size_t nbytes, loff_t *ppos)\n {\n \tstruct pci_dev *dev = pde_data(file_inode(file));\n-\tunsigned int off = *ppos;\n+\tloff_t off = *ppos;\n \tunsigned int count = nbytes;\n \tunsigned int size;\n \n", "prefixes": [ "4/4" ] }