From nobody Sat May 18 18:58:00 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; 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=pass(p=none dis=none) header.from=gmail.com ARC-Seal: i=1; a=rsa-sha256; t=1713760680; cv=none; d=zohomail.com; s=zohoarc; b=RfBuwcihPkqsMOgPafz4u201isn8mNmWfeY+BfyjWG2VNX5tcznzNl/5k3sK+q2Yg7zT7I18hgW7i4fZKIxJ95aImT4PgcVXOzuBKVs7U5XFHvYGuPtDCYr3mRCokm7U1yyuSPsLC+jGS75nXIMIUSAWfpbZwAt8NS3eJ+ZGe/I= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1713760680; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=n3at13TXv9A0AngjciclfQQPdiYQczLuI2wXF5rISsg=; b=dMQkXJsA+Ui+ojYx1VCGaQNn0j27tMqs0RlRcKICn+NNUzbbskXCN8JAnOywsKIWXw1ea78MUsg8f/JoKTbpXgx7BrmDJE5KSXY1bxNxeKlZcdOGvKW7xWZCBFCtdMAhnCnwsBPJuUteq8EIIYf7+tg175+KcjwcuRaKhB4E51U= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; 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=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1713760680885490.09558667350495; Sun, 21 Apr 2024 21:38:00 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rylQ6-0001AF-MK; Mon, 22 Apr 2024 00:36:47 -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 1rylQ3-00018u-Ht; Mon, 22 Apr 2024 00:36:44 -0400 Received: from mail-pl1-x632.google.com ([2607:f8b0:4864:20::632]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1rylQ1-0000LW-M6; Mon, 22 Apr 2024 00:36:43 -0400 Received: by mail-pl1-x632.google.com with SMTP id d9443c01a7336-1e2c725e234so37441275ad.1; Sun, 21 Apr 2024 21:36:40 -0700 (PDT) Received: from jeuk-MS-7D42.. ([210.223.46.112]) by smtp.gmail.com with ESMTPSA id c17-20020a170903235100b001dddcfca329sm7066777plh.148.2024.04.21.21.36.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 21 Apr 2024 21:36:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1713760598; x=1714365398; darn=nongnu.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=n3at13TXv9A0AngjciclfQQPdiYQczLuI2wXF5rISsg=; b=XgJGAXyK1BYq4NxYIQLRF3yThzuvPV9M5Zn0If5gchQbJehDpDmsd4aYqWw6jYsMlu +1XurwaRoznxxwRnE64BerhLNU6dy1I4hOPV5A5p0Fs8L2cN/zXKnmV5OePlG4MF6/fU GOawFyp1h+ykNaZgxfZxt4Cpth6B3GZBS07yG04Bo/58i4aqMvuc3G6fiehAhcksDI0/ q3TEV9X8MLzjQ1sUH+tN8B/aYDci6tLNxNC5NKKjfJwdf/vy5vduNwbxb/kZ7TzcYZUw /l8Eb0CyWWRjcpUo1OObEPeyFwO+HRe3DE9alz/Z+yGPpRvgE5F6ifl/7FJdGPcZ90gV ufRg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1713760598; x=1714365398; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=n3at13TXv9A0AngjciclfQQPdiYQczLuI2wXF5rISsg=; b=kzOSFmBNIQ7TJXP19FG6tiRP2rFtO5MwKdNc8r2UaOkbI7WAIedtIt36Cgd5NRJn0B y901Trx0IUyT2PEwVCCnnkt+KiOaDgrkGbWd7Fl/uDyX6wLXLQba6/TQyGfHAUfki+bq pk3/9AUwvaypDVsA0ODkO0gs+CIhR5YUOlK0vAvOrce4fK7Iy5jm358ptuk4W7KymnqI eDb2MM8VDnZAPqYbG2i/j6KF2bAMuAXbUifgQeZR6q577y2IfYa7MEjYdwfNFn8GIqxs 3hj25gRot8ztt/8c+pGzSTfaDZ8ySxy2DTPpIWtv8Z25gUbZig4qD3QCTikU68MqFLIT tpBQ== X-Forwarded-Encrypted: i=1; AJvYcCUdmlSFMCiI0I+zt1aSRN7tygzq1H3o9Cs2mZXLN8buRpTnyUfoB4ay7Aok37v+sJxJmHiQBQfknorsAdulE8DnAKNHES8= X-Gm-Message-State: AOJu0YxLIdl3hYdEWK9uyGtnaP3gIjJoSC9gIBvxKLLFbkteASA8aakY /eAk00PzIJhRgZZxhDmfk8zgnChXq3tvrmc5XYccjl8XoWIJwBtd/xjO0g== X-Google-Smtp-Source: AGHT+IFzOJ0XRoT7iOsrUK4TIwL46L5ayg/OM2fxzrd6KiAYz7U2KD7sLRHiDznoG/WDhJPfH17Rnw== X-Received: by 2002:a17:902:ec84:b0:1e2:bdef:3971 with SMTP id x4-20020a170902ec8400b001e2bdef3971mr17437431plg.16.1713760598611; Sun, 21 Apr 2024 21:36:38 -0700 (PDT) From: Jeuk Kim X-Google-Original-From: Jeuk Kim To: qemu-devel@nongnu.org Cc: hreitz@redhat.com, jeuk20.kim@samsung.com, kwolf@redhat.com, pbonzini@redhat.com, qemu-block@nongnu.org, mcascell@redhat.com, zheyuma97@gmail.com, j-young.choi@samsung.com Subject: [PATCH] hw/ufs: Fix buffer overflow bug Date: Mon, 22 Apr 2024 13:36:30 +0900 Message-Id: X-Mailer: git-send-email 2.34.1 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=2607:f8b0:4864:20::632; envelope-from=jeuk20.kim@gmail.com; helo=mail-pl1-x632.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: 2.1.29 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-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1713760681299100001 Content-Type: text/plain; charset="utf-8" It fixes the buffer overflow vulnerability in the ufs device. The bug was detected by sanitizers. You can reproduce it by: cat << EOF |\ qemu-system-x86_64 \ -display none -machine accel=3Dqtest -m 512M -M q35 -nodefaults -drive \ file=3Dnull-co://,if=3Dnone,id=3Ddisk0 -device ufs,id=3Dufs_bus -device \ ufs-lu,drive=3Ddisk0,bus=3Dufs_bus -qtest stdio outl 0xcf8 0x80000810 outl 0xcfc 0xe0000000 outl 0xcf8 0x80000804 outw 0xcfc 0x06 write 0xe0000058 0x1 0xa7 write 0xa 0x1 0x50 EOF Resolves: #2299 Fixes: 329f16624499 ("hw/ufs: Support for Query Transfer Requests") Reported-by: Zheyu Ma Signed-off-by: Jeuk Kim --- hw/ufs/ufs.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/hw/ufs/ufs.c b/hw/ufs/ufs.c index eccdb852a0..bac78a32bb 100644 --- a/hw/ufs/ufs.c +++ b/hw/ufs/ufs.c @@ -126,6 +126,10 @@ static MemTxResult ufs_dma_read_req_upiu(UfsRequest *r= eq) copy_size =3D sizeof(UtpUpiuHeader) + UFS_TRANSACTION_SPECIFIC_FIELD_S= IZE + data_segment_length; =20 + if (copy_size > sizeof(req->req_upiu)) { + copy_size =3D sizeof(req->req_upiu); + } + ret =3D ufs_addr_read(u, req_upiu_base_addr, &req->req_upiu, copy_size= ); if (ret) { trace_ufs_err_dma_read_req_upiu(req->slot, req_upiu_base_addr); @@ -225,6 +229,10 @@ static MemTxResult ufs_dma_write_rsp_upiu(UfsRequest *= req) copy_size =3D rsp_upiu_byte_len; } =20 + if (copy_size > sizeof(req->rsp_upiu)) { + copy_size =3D sizeof(req->rsp_upiu); + } + ret =3D ufs_addr_write(u, rsp_upiu_base_addr, &req->rsp_upiu, copy_siz= e); if (ret) { trace_ufs_err_dma_write_rsp_upiu(req->slot, rsp_upiu_base_addr); --=20 2.34.1