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([175.119.5.143]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-81f8e4b4110sm1141426b3a.10.2026.01.14.20.54.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 14 Jan 2026 20:54:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1768452885; x=1769057685; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=TZnaNNsZCNmN4jqFYzbrceDrs1tItqnZdPNYCcrgRIU=; b=dd+czx1Sbzn6VZVF6IdYXez1TaguCWq0sHZ1vf6RmmnPpm9IIUlEpofxXD8OJTOk95 AjccPa+s/msB+pXGKga6KByBOvFP1dhXJQvpwXrrTPcsieoDY6RaeddO01E+iavdfHvH icPuSC1MUjZmOJ3Az/nQOsxI5/SpkJmPLDNWdTjSbieatdrOnUFWzkAlId/TLnWQr2Zm HnVHmtmbrg4LE8w+ORQFoGp/2f66GWvmFTKgVIQ2j6lpaTu7ktURnsfCz+rI+OYd7zY5 Tf56BjQprsPMeMdlQgwi8Q9eMSOaucS55c4mxw4Yn6o2lpEBDw6UTcojuDpHE+SJYZ2x nteg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1768452885; x=1769057685; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=TZnaNNsZCNmN4jqFYzbrceDrs1tItqnZdPNYCcrgRIU=; b=XJHVsEfyXUEknXzoHr7eKnxA3To30VS9u2ODg6HHa5XxDIu1caN28S4q/2lFHxwmoh yxY4fPYkk0b7zgcMlefkleWT7544jxUAMBzsKCm/7qdTDRURsjNF+M75enmtCNi7CU77 Tx+hRKB1CF61OJnvI0rp08C5adjGMoR4eXK4loYUS9Hm7vFHVmZYlY1v5Rkjn7RfkUdy UixIVwrvI83wgYe9KkL9tjN6ymu50A3f+BFef0zHYkQClZr5FlK9Pu+Loe9O54p0TdQ/ jTPCkBKBCAMJIdJ+EGq48MqHgeJUqVLalSKGFV0y7sb2Nm1BMpao+CNqdK55iFTnKlNE G4Yg== X-Gm-Message-State: AOJu0YyH8YNgO510dMf8ORZMY7B8P5l81rYbc9/MnT481xlr5bqjefez gYcNTHwGtIDQ+5PY8Y3b2J7YJoOReLBVlD/lps25YE+jwCEMutOVZVutyh2MXQ== X-Gm-Gg: AY/fxX7tRsLahMtbA62GcEAkbuKs8uzYbRC8lL2BJZHk14qSC17eXNadegZNm6mN432 rYv2MqNSajXzyaBzPP0/3eZCK7TSXrc7uRd3GpoiJCiRcEzMID2MLOHpd4rRda3waBbudWzp8bp +jMoSZhNQCPyAalnkWvpmFsy9roOIFfO+9UoW56T2RTO3SNtgkLxGErxNS6VVJFI0D877//VJkh 2Zop/V/6xtFEXNnoDubvSfNy50lPgWx/duRA6XOs52V/PepOD+41UL9L+WYqB7QlPX4Jvolkfg6 VlQhRwyVmGhsDN7P+oGP+avuorTboMrnFYqZat9fscV04O7EQyRLEzFCjsv0ZA/soAl22QmMwbu Wd36cdc1cEM8Np6JnlZ+FyAPkUpGiH3y+Eq6qfQ7em124rC8melyWLB5SkynQU2GUq6xi5AblyC Lm19A7W8nNCQaxKg== X-Received: by 2002:a05:6a00:ab84:b0:81f:5acb:55eb with SMTP id d2e1a72fcca58-81f81d1356emr5342454b3a.6.1768452884570; Wed, 14 Jan 2026 20:54:44 -0800 (PST) From: Jeuk Kim To: qemu-devel@nongnu.org, richard.henderson@linaro.org Cc: pbonzini@redhat.com, qemu-block@nongnu.org, jeuk20.kim@samsung.com, j-young.choi@samsung.com, Jeuk Kim Subject: [PULL 1/3] hw/ufs: Ensure DBC of PRDT uses only lower 18 bits Date: Thu, 15 Jan 2026 13:53:59 +0900 Message-ID: X-Mailer: git-send-email 2.43.0 In-Reply-To: References: 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 (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::42e; envelope-from=jeuk20.kim@gmail.com; helo=mail-pf1-x42e.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=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development 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: 1768452894841158500 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 cab42ae7b6..4ee6755d82 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