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([175.119.5.143]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-32330fe255asm646832a91.14.2025.08.13.23.06.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 Aug 2025 23:06:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1755151619; x=1755756419; 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=wC9KY/GiZj+Qq9l9QHFtj9nmi2ll+Pn8RNRuLGXU7Yo=; b=WlS4gN3qh9ddULicNY0tiEVuGNHFZRmMPY/9h6LAtKQ4Cy6XRUkaXrb0I9sBZ4YqtL UKSJxuBTWIU8Tg94vIL1EMP/zGJUrrJCIrott2dNJrjyWTEtfm0xsrZb0hFVOi4NUuLb B/sPW1lU2BbYTq3ldkDE6BPjmdvwTAf07vmg3yRSbMLIXv6ssGCXlFH4KYYRuBJm0/RX 40iHMK8NwxeZPbSECCX2EE6yCQ6yifY0j1AbuioUTV9GQZD1/i03Xid6UfFGXySaJYhO qPTDaU6E2VFrRJKL5xJwLtN5ntsV2k30DiN2P3EtDoWTHGGO4JQoFp/rG+YT8+jaDi2r 78Zg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1755151619; x=1755756419; 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=wC9KY/GiZj+Qq9l9QHFtj9nmi2ll+Pn8RNRuLGXU7Yo=; b=f+CxFv7KYUEpDv48h/+om+CkuL/F/RyQdZs7i4lFIo1H+rRLUbUP709j0Y+BOKohtG 4ZckFMGEDAha7zkTS9TQyVoGMG6P+tlLa1veed5kKCOQM42VSxDKS+lA6YYrtqvbVLbW vafNbZPl7pjuVEgswI351mWf1Neb+s2D8T0YqAGrPFxlbCE141pbglcsFJGsy9c7ZBoX T1wZsHuk7gFNwIOmPbgOT28zxaLZ+YM9UyKNRBwCFayaPHnwUU6E0UNnrK3kSpHkz1Lb 0bB8tHJtepGblAnmjLXqvhuHs0qy98nTYnLQtrIWSyQdZ0SwdVZC0ZmOosj63KHrYPoG Qj2Q== X-Forwarded-Encrypted: i=1; AJvYcCXYl5Y6/GNWbikHhEZmxtZJ4/YoanODUXyzWM9E9AS9w98zl4vrH0717qfnG+rEO9QGd/M/Y3rOMUip@nongnu.org X-Gm-Message-State: AOJu0Yy5klZvsgqXCv5Kho/CehdOS3wxWVqGBoWA4P0U+SmN+FdAP4z1 Fzv1EmCHeDEYtQwaq7qtIHOdrs8Nq+doQkemvJgt6HwjnK6WNq61YNwC+KVtLQ== X-Gm-Gg: ASbGncsBgENp8s8eCYaC6uqUlXmpTkX0H+cmYzt6TXouaZtIHyRTy8saQDzK/xaEmWp 3uZ7QzVtFTxdqTGWyIYsNvmEEM449zktQwno5CKq58jOHxeDZq4aZxUNbXcHoobeyUwpE2Yp98J 4kF0PyZGIS6/tKCtnuQm3O/Ql2XWzwQoHLbU0NcnguzLe9nkAnofNuH355uxQ0Pl3EuWpjQZPEY 25GNIR7KcdeHQB4XrdvCveVToyD/0r/DVv1UEFlsf1Dt6BMQxi90L+ao7YvuN4c4R73yOQP+hdz uHqtW5FIcR9SF7lNTXE+kGqv3RsW49ceXkBhyef7OhO6M5C+o++rSyZ/rgIFgOL5JYHttkaf9Rw N84Ma1CM8bNxcdRygdCIUvMLw1g5hs9p+a2tknCg= X-Google-Smtp-Source: AGHT+IFli+tBUhjA14piBIqme5YI+4DxXRJdzQy07MMieqnuDenpasXSJcazpu2zQQQrq9hL2Zr4Qg== X-Received: by 2002:a05:6a20:3ca2:b0:240:16af:401a with SMTP id adf61e73a8af0-240bd286980mr2774107637.32.1755151618705; Wed, 13 Aug 2025 23:06:58 -0700 (PDT) From: Jeuk Kim X-Google-Original-From: Jeuk Kim To: qemu-devel@nongnu.org Cc: jeuk20.kim@samsung.com, qemu-block@nongnu.org, jinbeom_.kim@samsung.com, j-young.choi@samsung.com Subject: [PATCH] hw/ufs: Ensure DBC of PRDT uses only lower 18 bits Date: Thu, 14 Aug 2025 15:06:42 +0900 Message-ID: <2ea746d2c2e0a2c62a411324cdfe1a28736b5711.1755150852.git.jeuk20.kim@samsung.com> X-Mailer: git-send-email 2.43.0 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::42f; envelope-from=jeuk20.kim@gmail.com; helo=mail-pf1-x42f.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: 1755151697292116600 Content-Type: text/plain; charset="utf-8" The UFS spec defines the PRDT data byte count as an 18-bit field. This commit masks the value to the lower 18 bits to prevent incorrect transfer lengths and ensure compliance. Signed-off-by: Jeuk Kim --- hw/ufs/ufs.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/hw/ufs/ufs.c b/hw/ufs/ufs.c index 0577747f46..401aca311f 100644 --- a/hw/ufs/ufs.c +++ b/hw/ufs/ufs.c @@ -224,7 +224,8 @@ static MemTxResult ufs_dma_read_prdt(UfsRequest *req) =20 for (uint16_t i =3D 0; i < prdt_len; ++i) { hwaddr data_dma_addr =3D le64_to_cpu(prd_entries[i].addr); - uint32_t data_byte_count =3D le32_to_cpu(prd_entries[i].size) + 1; + uint32_t data_byte_count =3D + le32_to_cpu(prd_entries[i].size & 0x3ffff) + 1; qemu_sglist_add(req->sg, data_dma_addr, data_byte_count); req->data_len +=3D data_byte_count; } --=20 2.43.0