From nobody Sun Nov 24 06:45:10 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 17256057152446.2715420990545; Thu, 5 Sep 2024 23:55:15 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1smSrw-0004pW-Nr; Fri, 06 Sep 2024 02:54:56 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1smSrv-0004lQ-Ji; Fri, 06 Sep 2024 02:54:55 -0400 Received: from isrv.corpit.ru ([86.62.121.231]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1smSrt-00031E-Om; Fri, 06 Sep 2024 02:54:55 -0400 Received: from tsrv.corpit.ru (tsrv.tls.msk.ru [192.168.177.2]) by isrv.corpit.ru (Postfix) with ESMTP id 1BFD98C23D; Fri, 6 Sep 2024 09:53:12 +0300 (MSK) Received: from tls.msk.ru (mjt.wg.tls.msk.ru [192.168.177.130]) by tsrv.corpit.ru (Postfix) with SMTP id D5B2D1333F5; Fri, 6 Sep 2024 09:54:29 +0300 (MSK) Received: (nullmailer pid 43350 invoked by uid 1000); Fri, 06 Sep 2024 06:54:29 -0000 From: Michael Tokarev To: qemu-devel@nongnu.org Cc: qemu-stable@nongnu.org, Zhao Liu , Li Zhijian , Xingtao Yao , Jonathan Cameron , "Michael S . Tsirkin" , Michael Tokarev Subject: [Stable-8.2.7 08/53] hw/cxl/cxl-host: Fix segmentation fault when getting cxl-fmw property Date: Fri, 6 Sep 2024 09:53:38 +0300 Message-Id: <20240906065429.42415-8-mjt@tls.msk.ru> X-Mailer: git-send-email 2.39.2 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=86.62.121.231; envelope-from=mjt@tls.msk.ru; helo=isrv.corpit.ru X-Spam_score_int: -68 X-Spam_score: -6.9 X-Spam_bar: ------ X-Spam_report: (-6.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_HI=-5, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1725605721269116600 Content-Type: text/plain; charset="utf-8" From: Zhao Liu QEMU crashes (Segmentation fault) when getting cxl-fmw property via qmp: (QEMU) qom-get path=3Dmachine property=3Dcxl-fmw This issue is caused by accessing wrong callback (opaque) type in machine_get_cfmw(). cxl_machine_init() sets the callback as `CXLState *` type but machine_get_cfmw() treats the callback as `CXLFixedMemoryWindowOptionsList **`. Fix this error by casting opaque to `CXLState *` type in machine_get_cfmw(). Fixes: 03b39fcf64bc ("hw/cxl: Make the CXL fixed memory window setup a mach= ine parameter.") Signed-off-by: Zhao Liu Reviewed-by: Li Zhijian Reviewed-by: Xingtao Yao Link: https://lore.kernel.org/r/20240704093404.1848132-1-zhao1.liu@linux.in= tel.com Signed-off-by: Jonathan Cameron Message-Id: <20240705113956.941732-2-Jonathan.Cameron@huawei.com> Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin (cherry picked from commit a207d5f87d66f7933b50677e047498fc4af63e1f) Signed-off-by: Michael Tokarev diff --git a/hw/cxl/cxl-host.c b/hw/cxl/cxl-host.c index 2aa776c79c..85ca88bf7a 100644 --- a/hw/cxl/cxl-host.c +++ b/hw/cxl/cxl-host.c @@ -314,7 +314,8 @@ static void machine_set_cxl(Object *obj, Visitor *v, co= nst char *name, static void machine_get_cfmw(Object *obj, Visitor *v, const char *name, void *opaque, Error **errp) { - CXLFixedMemoryWindowOptionsList **list =3D opaque; + CXLState *state =3D opaque; + CXLFixedMemoryWindowOptionsList **list =3D &state->cfmw_list; =20 visit_type_CXLFixedMemoryWindowOptionsList(v, name, list, errp); } --=20 2.39.2