From patchwork Tue Feb 27 15:47:41 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Igor Mammedov X-Patchwork-Id: 13574067 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E7A2AC5478C for ; Tue, 27 Feb 2024 15:52:39 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rezh4-0005ge-7s; Tue, 27 Feb 2024 10:48:34 -0500 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 1rezh3-0005fw-8k for qemu-devel@nongnu.org; Tue, 27 Feb 2024 10:48:33 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rezh1-0008Ro-KW for qemu-devel@nongnu.org; Tue, 27 Feb 2024 10:48:32 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1709048911; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=rNquvZhZ3LHRN6ZPdasvWHJav95XpvZgYRUAvl2jx3E=; b=HBv2MaoT2dzHI5xE2JydC0gSbM0bKfO44Za4OnnMyXZnJ1gk5MxbXD7u9zR8hqep60p3+0 HQvycMrcc+W+ba8zxZf8kaEihhV05Jo6Q301MbC/5D/EFvN5TGEMyIAJyPmQOgz5sJovxj k97chgoSZKWLlI5Cs5mDZ6p0ighLjcg= Received: from mimecast-mx02.redhat.com (mx-ext.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-594-FeYI69_EOlGuzE6kYOv6-A-1; Tue, 27 Feb 2024 10:48:26 -0500 X-MC-Unique: FeYI69_EOlGuzE6kYOv6-A-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id EF4E11C106B5; Tue, 27 Feb 2024 15:48:25 +0000 (UTC) Received: from dell-r430-03.lab.eng.brq2.redhat.com (dell-r430-03.lab.eng.brq2.redhat.com [10.37.153.18]) by smtp.corp.redhat.com (Postfix) with ESMTP id 6397D2166AE9; Tue, 27 Feb 2024 15:48:23 +0000 (UTC) From: Igor Mammedov To: qemu-devel@nongnu.org Cc: peter.maydell@linaro.org, pbonzini@redhat.com, mst@redhat.com, gaosong@loongson.cn, alistair.francis@wdc.com, palmer@dabbelt.com, bin.meng@windriver.com, liwei1518@gmail.com, dbarboza@ventanamicro.com, zhiwei_liu@linux.alibaba.com, imammedo@redhat.com, anisinha@redhat.com, philmd@linaro.org, wangyanan55@huawei.com, eblake@redhat.com, armbru@redhat.com, qemu-arm@nongnu.org, qemu-riscv@nongnu.org, f.ebner@proxmox.com Subject: [PATCH 11/19] smbios: clear smbios_tables pointer after freeing Date: Tue, 27 Feb 2024 16:47:41 +0100 Message-Id: <20240227154749.1818189-12-imammedo@redhat.com> In-Reply-To: <20240227154749.1818189-1-imammedo@redhat.com> References: <20240227154749.1818189-1-imammedo@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.6 Received-SPF: pass client-ip=170.10.133.124; envelope-from=imammedo@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.088, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org that will avoid double free if smbios_get_tables() is called multiple times. Signed-off-by: Igor Mammedov Reviewed-by: Ani Sinha --- hw/smbios/smbios.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/hw/smbios/smbios.c b/hw/smbios/smbios.c index 7c28b5f748..d9ba2072b1 100644 --- a/hw/smbios/smbios.c +++ b/hw/smbios/smbios.c @@ -1052,6 +1052,8 @@ void smbios_get_tables(MachineState *ms, return; err_exit: g_free(smbios_tables); + smbios_tables = NULL; + return; } static void save_opt(const char **dest, QemuOpts *opts, const char *name)