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[44.242.66.180]) by smtp.gmail.com with ESMTPSA id gz14sm10813069ejc.105.2021.02.15.07.11.39 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 15 Feb 2021 07:11:44 -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; bh=GmPOyYhtMaQGLeUL8TQFwbbYMxSl6yrfYp58gXklU0I=; b=s4JR5BmoowEqqMVFLip4nIYyDaZKMRVik7N0t3KXRPEdAMrFj8/SQXUFxtNn+er6St kGmVoSbKhdcieRYUakZeaJzZonKdsBbrXE+caSjgHkNPQq0PD5U7kImHAY96aIeLgFT9 jAoOMBovgpaRGAD9j2bOejrPD1SrSNOmlqGxWF2BKMMpGIGpNwr2Cd6V3I23UIm3ZVWc 9u3AS7+5I8ljiJvn4QjyEvrVRb3xfTstRcVje0+lqpQg2SMYfy48iCHT1qVF3e5Yjgxg tfOeEWAYtLk3rzQrNbcRAxLpPpxdvft1sGL1dXqeWd4Ugya63qqhb2cTGHWtnOjecF64 6cHQ== 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; bh=GmPOyYhtMaQGLeUL8TQFwbbYMxSl6yrfYp58gXklU0I=; b=eDesSu3goy9sEt5tkVS6grrIpjI0XSguK11MASCS5WgO+uyrhMZ4VQmed2uNL6JzT9 DUxhU2IP9FcdBpa2d+BXEsreC13zZW6VAGtVxQJ/DcKKibrO/+EE3i/UdnoOr2SUxmiI 1cpN1rTG2hhcY2TLwtY24OmlwWpRO1rRar3Ovtylp3M63uExpL9/nWwWgC+wXJiiVr0l KRHXfmhhTitQ5j55MIW9SZSJYlokHbC+QD2Qu9pVaFV11A7h89M+He7Edu0zNNuukOrr gWqH28qj5rSk3fCHd2t+6Ev00ffkXWXNjVfmKHRzKZka/RBY2WxwCQLdCb/uOK8+0vL0 Rq1g== X-Gm-Message-State: AOAM530MvnnvcjJiwoSY8tVEO2Gn0ZE1SQBQRKMu+AXebj/n76jmSAxD 8MLNJEEZbfr1ZczPJj2+WJM= X-Google-Smtp-Source: ABdhPJwja0kpqBJljvb3c+czPkWdLYxSFunQypCmncNOZdrpGcHkZhc18T3tW5UclPDovrnF1AdEHA== X-Received: by 2002:aa7:d50b:: with SMTP id y11mr3685180edq.288.1613401904823; Mon, 15 Feb 2021 07:11:44 -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: [PATCH 3/4] hw/sd: sdhci: Correctly set the controller status for ADMA Date: Mon, 15 Feb 2021 23:11:10 +0800 Message-Id: <1613401871-59515-4-git-send-email-bmeng.cn@gmail.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1613401871-59515-1-git-send-email-bmeng.cn@gmail.com> References: <1613401871-59515-1-git-send-email-bmeng.cn@gmail.com> 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=2a00:1450:4864:20::531; envelope-from=bmeng.cn@gmail.com; helo=mail-ed1-x531.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: 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: pass (identity @gmail.com) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" When an ADMA transfer is started, the codes forget to set the controller status to indicate a transfer is in progress. With this fix, the following 2 reproducers: https://paste.debian.net/plain/1185136 https://paste.debian.net/plain/1185141 cannot be reproduced with the following QEMU command line: $ qemu-system-x86_64 -nographic -machine accel=3Dqtest -m 512M \ -nodefaults -device sdhci-pci,sd-spec-version=3D3 \ -drive if=3Dsd,index=3D0,file=3Dnull-co://,format=3Draw,id=3Dmydrive \ -device sd-card,drive=3Dmydrive -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 --- hw/sd/sdhci.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/hw/sd/sdhci.c b/hw/sd/sdhci.c index 05cb281..0b0ca6f 100644 --- a/hw/sd/sdhci.c +++ b/hw/sd/sdhci.c @@ -769,7 +769,9 @@ static void sdhci_do_adma(SDHCIState *s) =20 switch (dscr.attr & SDHC_ADMA_ATTR_ACT_MASK) { case SDHC_ADMA_ATTR_ACT_TRAN: /* data transfer */ + s->prnsts |=3D SDHC_DATA_INHIBIT | SDHC_DAT_LINE_ACTIVE; if (s->trnmod & SDHC_TRNS_READ) { + s->prnsts |=3D SDHC_DOING_READ; while (length) { if (s->data_count =3D=3D 0) { sdbus_read_data(&s->sdbus, s->fifo_buffer, block_s= ize); @@ -797,6 +799,7 @@ static void sdhci_do_adma(SDHCIState *s) } } } else { + s->prnsts |=3D SDHC_DOING_WRITE; while (length) { begin =3D s->data_count; if ((length + begin) < block_size) { --=20 2.7.4