From nobody Mon Feb 9 08:57:05 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; 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; dmarc=fail(p=none dis=none) header.from=gmail.com ARC-Seal: i=1; a=rsa-sha256; t=1614774593; cv=none; d=zohomail.com; s=zohoarc; b=UP5KExcXIIf595La/3UK7AY/cws9rIjZO4oJ91NXiUW2Xcg9F9WHn9aaAxPmbWkaucsn8ZJUFKIiJw5vyENSYQY7+XtesKABHzNLqj0H9dbXoZmeiywUDWsBx7nrOXHz1h6iyVyjSM+NxJnVoLjx+kna9Oip8MZPBe3qFr8mexU= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1614774593; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=OG4goZFEaNkkukUoQrBUegD/8Ki3U9WGREFx1JPyYo4=; b=LyGlDl9bATaw8NgUrtOwRIBKziBInhdx2ornB7iVYjvMlvcVw3av2nZQFIIG1/ReX1v0OD74PWlE/3Ncb4H+xHm4JJkCFg71Qyo7ZnbBuj89k2ZjquHmplkTXktr7D33ct4LNeMFsP4THa2zwukTk+yx18ZVyDftEymgBEEgD+Q= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=fail; 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; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1614774593837211.42850199810653; Wed, 3 Mar 2021 04:29:53 -0800 (PST) Received: from localhost ([::1]:57466 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lHQdU-0007ir-NC for importer@patchew.org; Wed, 03 Mar 2021 07:29:52 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:37356) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lHQai-00034R-Ic; Wed, 03 Mar 2021 07:27:00 -0500 Received: from mail-qk1-x72c.google.com ([2607:f8b0:4864:20::72c]:41317) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lHQag-0000cw-R5; Wed, 03 Mar 2021 07:27:00 -0500 Received: by mail-qk1-x72c.google.com with SMTP id q85so23684987qke.8; Wed, 03 Mar 2021 04:26:57 -0800 (PST) Received: from i9-aorus-gtx1080.localdomain (144.168.56.201.16clouds.com. [144.168.56.201]) by smtp.gmail.com with ESMTPSA id x14sm15433458qtq.47.2021.03.03.04.26.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 03 Mar 2021 04:26:56 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=OG4goZFEaNkkukUoQrBUegD/8Ki3U9WGREFx1JPyYo4=; b=SFexncU+WlvYtbpNnYCjmD70U44+jUb+WnXBwGi4piehhuy9AQY+2OHy97P+fhslGZ 7XwA/PhkTAt9Lmh9WfPca0unayvkt5xvLnQskb8rOQ/VjjfuUjXQRLG+dycqNZihLMm4 wKKgaciirLeL8Jt6Kk84H66RwZfIXW6Y2OJrvDUQgWkKXN0cE+J6O1bezspTsR4fIlWd NvQFxNr3rjofyhAuoTqnm+nUm+K6qTAi/CsNsZ/GA8dhkwFW7mgw5fx75dyW0huzpxat fn/wpwJKEF86S8hEvFKAN1h5d6ps1HHpJxii+IJ4jr6ClM0l0hNhDvIOm8QfgmFDwVtr BPzQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=OG4goZFEaNkkukUoQrBUegD/8Ki3U9WGREFx1JPyYo4=; b=X8iCMzZ2x4qLRYoNmYtVQahDfkobUSfVh2pTUkQVEQJWNiFl9wg+DzPpadaKgBehT9 5V7eaU/nPWh/dBndCXR8hfB32SfVYT50pyVT7ZZT3MC3x9U3UgX3Zq/PFdBdziaA4diz j1lK41kIfLKfBxoFAhCHPeIIUqiswrQ2+DZ372cV5O5EKXngjwpqWb1FuBtAwVsNpPhV pUps+9U65tLLTn+OFRSYJiG4YD5KGFBDCRxJp3ofjW6YbafcH1+XfS+omIN8KVGZj+kc mjmCfA7kM7WqpHGSTKNyi1JVsvXZNtIRDqevJiC9SrJFjMHny1IkZBZbVKIWgTjENtI4 EwMg== X-Gm-Message-State: AOAM533XFApjjbYU/SZ8nH+sKT30mVVmLJ6zbcgN7FLn2ZpcdW7xovmN b6Qg/GTUYRb/YAEDWeG03+0= X-Google-Smtp-Source: ABdhPJyxhffo5oA52IO5azMr8/tiIr4CsKKlQ/jxhJjzsdxSnDEkgqR3jXsN2rqiZtAfrShwsd+rqw== X-Received: by 2002:a05:620a:1107:: with SMTP id o7mr505302qkk.188.1614774417087; Wed, 03 Mar 2021 04:26:57 -0800 (PST) From: Bin Meng To: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Mauro Matteo Cascella , Li Qiang , Alexander Bulekov , Alistair Francis , Prasad J Pandit , Bandan Das Subject: [RESEND PATCH v3 1/5] hw/sd: sdhci: Don't transfer any data when command time out Date: Wed, 3 Mar 2021 20:26:35 +0800 Message-Id: <20210303122639.20004-2-bmeng.cn@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210303122639.20004-1-bmeng.cn@gmail.com> References: <20210303122639.20004-1-bmeng.cn@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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=2607:f8b0:4864:20::72c; envelope-from=bmeng.cn@gmail.com; helo=mail-qk1-x72c.google.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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, 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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Bin Meng , qemu-stable@nongnu.org, qemu-block@nongnu.org, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) At the end of sdhci_send_command(), it starts a data transfer if the command register indicates data is associated. But the data transfer should only be initiated when the command execution has succeeded. With this fix, the following reproducer: outl 0xcf8 0x80001810 outl 0xcfc 0xe1068000 outl 0xcf8 0x80001804 outw 0xcfc 0x7 write 0xe106802c 0x1 0x0f write 0xe1068004 0xc 0x2801d10101fffffbff28a384 write 0xe106800c 0x1f 0x9dacbbcad9e8f7061524334251606f7e8d9cabbac9d8e7f6051= 4233241505f write 0xe1068003 0x28 0x80d000251480d000252280d000253080d000253e80d000254c8= 0d000255a80d000256880d0002576 write 0xe1068003 0x1 0xfe cannot be reproduced with the following QEMU command line: $ qemu-system-x86_64 -nographic -M pc-q35-5.0 \ -device sdhci-pci,sd-spec-version=3D3 \ -drive if=3Dsd,index=3D0,file=3Dnull-co://,format=3Draw,id=3Dmydrive \ -device sd-card,drive=3Dmydrive \ -monitor none -serial none -qtest stdio Cc: qemu-stable@nongnu.org Fixes: CVE-2020-17380 Fixes: CVE-2020-25085 Fixes: CVE-2021-3409 Fixes: d7dfca0807a0 ("hw/sdhci: introduce standard SD host controller") Reported-by: Alexander Bulekov Reported-by: Cornelius Aschermann (Ruhr-University Bochum) Reported-by: Muhammad Ramdhan Reported-by: Sergej Schumilo (Ruhr-University Bochum) Reported-by: Simon Wrner (Ruhr-University Bochum) Buglink: https://bugs.launchpad.net/qemu/+bug/1892960 Buglink: https://bugs.launchpad.net/qemu/+bug/1909418 Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=3D1928146 Signed-off-by: Bin Meng Acked-by: Alistair Francis Tested-by: Alexander Bulekov Tested-by: Philippe Mathieu-Daud=C3=A9 --- (no changes since v1) hw/sd/sdhci.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/hw/sd/sdhci.c b/hw/sd/sdhci.c index 9acf4467a3..f72d76c178 100644 --- a/hw/sd/sdhci.c +++ b/hw/sd/sdhci.c @@ -326,6 +326,7 @@ static void sdhci_send_command(SDHCIState *s) SDRequest request; uint8_t response[16]; int rlen; + bool timeout =3D false; =20 s->errintsts =3D 0; s->acmd12errsts =3D 0; @@ -349,6 +350,7 @@ static void sdhci_send_command(SDHCIState *s) trace_sdhci_response16(s->rspreg[3], s->rspreg[2], s->rspreg[1], s->rspreg[0]); } else { + timeout =3D true; trace_sdhci_error("timeout waiting for command response"); if (s->errintstsen & SDHC_EISEN_CMDTIMEOUT) { s->errintsts |=3D SDHC_EIS_CMDTIMEOUT; @@ -369,7 +371,7 @@ static void sdhci_send_command(SDHCIState *s) =20 sdhci_update_irq(s); =20 - if (s->blksize && (s->cmdreg & SDHC_CMD_DATA_PRESENT)) { + if (!timeout && s->blksize && (s->cmdreg & SDHC_CMD_DATA_PRESENT)) { s->data_count =3D 0; sdhci_data_transfer(s); } --=20 2.25.1