From patchwork Thu Feb 23 12:57:47 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Julia Suvorova X-Patchwork-Id: 13150288 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 06DF0C61DA4 for ; Thu, 23 Feb 2023 12:58:37 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pVBAg-0003e6-Pi; Thu, 23 Feb 2023 07:58:02 -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 1pVBAY-0003KU-QR for qemu-devel@nongnu.org; Thu, 23 Feb 2023 07:57:56 -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 1pVBAW-0001J8-9e for qemu-devel@nongnu.org; Thu, 23 Feb 2023 07:57:53 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1677157071; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=c/I/4dmZhw1+ZIY6//e2TSrGG8joxnCPE5ppp9w+aAU=; b=L3OuEYbM3gaGP8oKCv0ltZxo75NpCH4+2Wm4Tqw6re+zXNadNZY298eh1hhbW1pGVQf+C1 Go1TfHdhzNYr4c0403hcq5hvFdtQGGXq6QzjZjHdmF+A5qTMyC17swyBrlNQczgsWrT20/ XIyRKCPlhOSeBFHG03mY0yABq36hBBU= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-628-YG_sLIvKOb6QNtEwNDjPpA-1; Thu, 23 Feb 2023 07:57:50 -0500 X-MC-Unique: YG_sLIvKOb6QNtEwNDjPpA-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 31CC8811E6E; Thu, 23 Feb 2023 12:57:50 +0000 (UTC) Received: from fedora.. (unknown [10.43.2.21]) by smtp.corp.redhat.com (Postfix) with ESMTP id 443CA2026D4B; Thu, 23 Feb 2023 12:57:49 +0000 (UTC) From: Julia Suvorova To: qemu-devel@nongnu.org Cc: "Michael S. Tsirkin" , Igor Mammedov , Ani Sinha , Julia Suvorova Subject: [PATCH v2] hw/smbios: fix field corruption in type 4 table Date: Thu, 23 Feb 2023 13:57:47 +0100 Message-Id: <20230223125747.254914-1-jusual@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.4 Received-SPF: pass client-ip=170.10.133.124; envelope-from=jusual@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, 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_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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 Since table type 4 of SMBIOS version 2.6 is shorter than 3.0, the strings which follow immediately after the struct fields have been overwritten by unconditional filling of later fields such as core_count2. Make these fields dependent on the SMBIOS version. Fixes: 05e27d74c7 ("hw/smbios: add core_count2 to smbios table type 4") Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2169904 Signed-off-by: Julia Suvorova Reviewed-by: Igor Mammedov Reviewed-by: Ani Sinha --- v2: * add fixes tag * check tbl_len instead of ep_type hw/smbios/smbios.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/hw/smbios/smbios.c b/hw/smbios/smbios.c index 4869566cf5..d2007e70fb 100644 --- a/hw/smbios/smbios.c +++ b/hw/smbios/smbios.c @@ -750,14 +750,16 @@ static void smbios_build_type_4_table(MachineState *ms, unsigned instance) t->core_count = (ms->smp.cores > 255) ? 0xFF : ms->smp.cores; t->core_enabled = t->core_count; - t->core_count2 = t->core_enabled2 = cpu_to_le16(ms->smp.cores); - t->thread_count = (ms->smp.threads > 255) ? 0xFF : ms->smp.threads; - t->thread_count2 = cpu_to_le16(ms->smp.threads); t->processor_characteristics = cpu_to_le16(0x02); /* Unknown */ t->processor_family2 = cpu_to_le16(0x01); /* Other */ + if (tbl_len == SMBIOS_TYPE_4_LEN_V30) { + t->core_count2 = t->core_enabled2 = cpu_to_le16(ms->smp.cores); + t->thread_count2 = cpu_to_le16(ms->smp.threads); + } + SMBIOS_BUILD_TABLE_POST; smbios_type4_count++; }