From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 86FD9C352A5 for ; Mon, 10 Feb 2020 13:33:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5650720714 for ; Mon, 10 Feb 2020 13:33:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581341602; bh=tk6CobhnFF98UGnLKK9EK+azGlltkm4jOGytqYGmPck=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=TZ8PswuwgrMbmBdgA+V1qXbsoguzOdyWzbmLno3FWWcU5gpFiXJAco+J3UyaZxVR2 u2Ws/LUXxNFzmAqKnUERQoyMshmErdNDV/XLYMbZNx2rFMW/W1dLPWPE9Nd5S+YMXa bHwkZRn1zkQSMzPqh5xyw8RZtZsrNf7Hl2j/EwyA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727883AbgBJNdV (ORCPT ); Mon, 10 Feb 2020 08:33:21 -0500 Received: from mail.kernel.org ([198.145.29.99]:53160 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728019AbgBJMfh (ORCPT ); Mon, 10 Feb 2020 07:35:37 -0500 Received: from localhost (unknown [209.37.97.194]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 7B4BF20661; Mon, 10 Feb 2020 12:35:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581338136; bh=tk6CobhnFF98UGnLKK9EK+azGlltkm4jOGytqYGmPck=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=wMjkXqF+I5agzn9Xap+aR9c4cl4zk0veGiD5GgsJjw6XEVm/Ox5B/X4zOmuJwrE+2 xAH/Fo71VtvjHW1xqxAahKcpBXwzcT5SOm8Yw9jUIdL0msJ0a9oBxQAddN1gq6O4r3 0vcuw+Av1cL+HhAlDnGwnRXr0cXHTF0JjHWyY/qI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Kevin Hao , Marc Zyngier Subject: [PATCH 4.19 044/195] irqdomain: Fix a memory leak in irq_domain_push_irq() Date: Mon, 10 Feb 2020 04:31:42 -0800 Message-Id: <20200210122310.540716532@linuxfoundation.org> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200210122305.731206734@linuxfoundation.org> References: <20200210122305.731206734@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Kevin Hao commit 0f394daef89b38d58c91118a2b08b8a1b316703b upstream. Fix a memory leak reported by kmemleak: unreferenced object 0xffff000bc6f50e80 (size 128): comm "kworker/23:2", pid 201, jiffies 4294894947 (age 942.132s) hex dump (first 32 bytes): 00 00 00 00 41 00 00 00 86 c0 03 00 00 00 00 00 ....A........... 00 a0 b2 c6 0b 00 ff ff 40 51 fd 10 00 80 ff ff ........@Q...... backtrace: [<00000000e62d2240>] kmem_cache_alloc_trace+0x1a4/0x320 [<00000000279143c9>] irq_domain_push_irq+0x7c/0x188 [<00000000d9f4c154>] thunderx_gpio_probe+0x3ac/0x438 [<00000000fd09ec22>] pci_device_probe+0xe4/0x198 [<00000000d43eca75>] really_probe+0xdc/0x320 [<00000000d3ebab09>] driver_probe_device+0x5c/0xf0 [<000000005b3ecaa0>] __device_attach_driver+0x88/0xc0 [<000000004e5915f5>] bus_for_each_drv+0x7c/0xc8 [<0000000079d4db41>] __device_attach+0xe4/0x140 [<00000000883bbda9>] device_initial_probe+0x18/0x20 [<000000003be59ef6>] bus_probe_device+0x98/0xa0 [<0000000039b03d3f>] deferred_probe_work_func+0x74/0xa8 [<00000000870934ce>] process_one_work+0x1c8/0x470 [<00000000e3cce570>] worker_thread+0x1f8/0x428 [<000000005d64975e>] kthread+0xfc/0x128 [<00000000f0eaa764>] ret_from_fork+0x10/0x18 Fixes: 495c38d3001f ("irqdomain: Add irq_domain_{push,pop}_irq() functions") Signed-off-by: Kevin Hao Signed-off-by: Marc Zyngier Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20200120043547.22271-1-haokexin@gmail.com Signed-off-by: Greg Kroah-Hartman --- kernel/irq/irqdomain.c | 1 + 1 file changed, 1 insertion(+) --- a/kernel/irq/irqdomain.c +++ b/kernel/irq/irqdomain.c @@ -1421,6 +1421,7 @@ int irq_domain_push_irq(struct irq_domai if (rv) { /* Restore the original irq_data. */ *root_irq_data = *child_irq_data; + kfree(child_irq_data); goto error; }