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GET /api/patches/2216832/?format=api
{ "id": 2216832, "url": "http://patchwork.ozlabs.org/api/patches/2216832/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/patch/20260327101053.900154-1-padmarao.begari@amd.com/", "project": { "id": 18, "url": "http://patchwork.ozlabs.org/api/projects/18/?format=api", "name": "U-Boot", "link_name": "uboot", "list_id": "u-boot.lists.denx.de", "list_email": "u-boot@lists.denx.de", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260327101053.900154-1-padmarao.begari@amd.com>", "list_archive_url": null, "date": "2026-03-27T10:10:32", "name": "clk: versal: Fix out-of-bounds parent id for DUMMY_PARENT", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "8a0bbca279b6ba1a146aa2ed0b776161a8ec41ee", "submitter": { "id": 89329, "url": "http://patchwork.ozlabs.org/api/people/89329/?format=api", "name": "Begari, Padmarao", "email": "padmarao.begari@amd.com" }, "delegate": { "id": 1692, "url": "http://patchwork.ozlabs.org/api/users/1692/?format=api", "username": "monstr", "first_name": "Michal", "last_name": "Simek", "email": "monstr@monstr.eu" }, "mbox": "http://patchwork.ozlabs.org/project/uboot/patch/20260327101053.900154-1-padmarao.begari@amd.com/mbox/", "series": [ { "id": 497740, "url": "http://patchwork.ozlabs.org/api/series/497740/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/list/?series=497740", "date": "2026-03-27T10:10:32", "name": "clk: versal: Fix out-of-bounds parent id for DUMMY_PARENT", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/497740/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2216832/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2216832/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<u-boot-bounces@lists.denx.de>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=amd.com header.i=@amd.com header.a=rsa-sha256\n header.s=selector1 header.b=mj17Iy7W;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de\n (client-ip=2a01:238:438b:c500:173d:9f52:ddab:ee01; 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s=selector1;\n h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck;\n bh=QZJvuIB3G8QRxku7xg9e7ZfCFkPSkjObRZcEt/D8FBI=;\n b=mj17Iy7W5jwLsJFDEe1Tk9e0ZmCNy2ZtqqV2OHmmeqQfVWEWLob5z3wTt6sVxVY3IA5j4vbvUqgXze2P3Dn0jLvs+qiE+/qqjZw3dTpGjYgCdFe9LakA09yP3MefHq59DY2F9jN3lwWSuWB5hQJfghNx69Yv7RMQMl3AJlqWtNE=", "X-MS-Exchange-Authentication-Results": "spf=pass (sender IP is 165.204.84.17)\n smtp.mailfrom=amd.com; dkim=none (message not signed)\n header.d=none;dmarc=pass action=none header.from=amd.com;", "Received-SPF": "Pass (protection.outlook.com: domain of amd.com designates\n 165.204.84.17 as permitted sender) receiver=protection.outlook.com;\n client-ip=165.204.84.17; helo=satlexmb07.amd.com; pr=C", "From": "Padmarao Begari <padmarao.begari@amd.com>", "To": "<u-boot@lists.denx.de>, <michal.simek@amd.com>", "CC": "<git@amd.com>, <padmarao.begari@amd.com>, Lukasz Majewski <lukma@denx.de>,\n Tom Rini <trini@konsulko.com>, Siva Durga Prasad Paladugu\n <siva.durga.prasad.paladugu@amd.com>", "Subject": "[PATCH] clk: versal: Fix out-of-bounds parent id for DUMMY_PARENT", "Date": "Fri, 27 Mar 2026 15:40:32 +0530", "Message-ID": "<20260327101053.900154-1-padmarao.begari@amd.com>", "X-Mailer": "git-send-email 2.34.1", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Content-Type": "text/plain", "X-EOPAttributedMessage": "0", "X-MS-PublicTrafficType": "Email", "X-MS-TrafficTypeDiagnostic": "MW1PEPF00016160:EE_|DM6PR12MB4043:EE_", "X-MS-Office365-Filtering-Correlation-Id": "12cc7a8d-26da-40b3-069e-08de8be929cd", "X-MS-Exchange-SenderADCheck": "1", "X-MS-Exchange-AntiSpam-Relay": "0", "X-Microsoft-Antispam": "BCL:0;\n ARA:13230040|82310400026|1800799024|376014|36860700016|56012099003|18002099003;", "X-Microsoft-Antispam-Message-Info": "\n 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", "X-Forefront-Antispam-Report": "CIP:165.204.84.17; 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Ip=[165.204.84.17];\n Helo=[satlexmb07.amd.com]", "X-MS-Exchange-CrossTenant-AuthSource": "\n MW1PEPF00016160.namprd21.prod.outlook.com", "X-MS-Exchange-CrossTenant-AuthAs": "Anonymous", "X-MS-Exchange-CrossTenant-FromEntityHeader": "HybridOnPrem", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "DM6PR12MB4043", "X-BeenThere": "u-boot@lists.denx.de", "X-Mailman-Version": "2.1.39", "Precedence": "list", "List-Id": "U-Boot discussion <u-boot.lists.denx.de>", "List-Unsubscribe": "<https://lists.denx.de/options/u-boot>,\n <mailto:u-boot-request@lists.denx.de?subject=unsubscribe>", "List-Archive": "<https://lists.denx.de/pipermail/u-boot/>", "List-Post": "<mailto:u-boot@lists.denx.de>", "List-Help": "<mailto:u-boot-request@lists.denx.de?subject=help>", "List-Subscribe": "<https://lists.denx.de/listinfo/u-boot>,\n <mailto:u-boot-request@lists.denx.de?subject=subscribe>", "Errors-To": "u-boot-bounces@lists.denx.de", "Sender": "\"U-Boot\" <u-boot-bounces@lists.denx.de>", "X-Virus-Scanned": "clamav-milter 0.103.8 at phobos.denx.de", "X-Virus-Status": "Clean" }, "content": "When a clock parent entry is DUMMY_PARENT (0xFFFFFFFE), masking it\nwith CLK_PARENTS_ID_MASK (0xFFFF) produces the value 0xFFFE (65534).\nThis value is stored in parent->id and later used as a clock array\nindex in versal_clock_get_parentid(). Since clock_max_idx is\ntypically 228, accessing clock[65534] is out-of-bounds, and the\ngarbage value read is used as a clock ID in subsequent clock rate\ncalculations, eventually causing U-Boot to crash. This is observed\nas a crash during \"clk dump\" on AMD Versal Gen 2.\n\nFix this by setting parent->id = 0 for DUMMY_PARENT entries.\n\nFixes: 95105089afe2 (\"clk: versal: Add clock driver support\")\nSigned-off-by: Padmarao Begari <padmarao.begari@amd.com>\n---\n drivers/clk/clk_versal.c | 1 +\n 1 file changed, 1 insertion(+)", "diff": "diff --git a/drivers/clk/clk_versal.c b/drivers/clk/clk_versal.c\nindex 78a2410ca21..2e0c382ef30 100644\n--- a/drivers/clk/clk_versal.c\n+++ b/drivers/clk/clk_versal.c\n@@ -326,6 +326,7 @@ static int __versal_clock_get_parents(struct clock_parent *parents, u32 *data,\n \t\tparent = &parents[i];\n \t\tparent->id = data[i] & CLK_PARENTS_ID_MASK;\n \t\tif (data[i] == DUMMY_PARENT) {\n+\t\t\tparent->id = 0;\n \t\t\tstrcpy(parent->name, \"dummy_name\");\n \t\t\tparent->flag = 0;\n \t\t} else {\n", "prefixes": [] }