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([175.119.5.143]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-81fddd12fcasm11856b3a.0.2026.01.18.23.27.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 18 Jan 2026 23:27:28 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1768807649; x=1769412449; 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=yKeLEi0Je2h1ztfLRVsk2xzeEcuQan8/cVyxDzyqXVw=; b=OpoU+1anJftj3DQc0uQu/NENUBD6MGtb5oSLwpwXlXOD1fl/AYggi8IksNMbcsrqIw ArndgEt2Yax+yZftK+mPXG+wzjDZOxiSMaVdhl/f2fTertz1xgYLVsz2dlyE7jsQlNFg 0Jk+jZa5pDmgKgcAVp9Xt7ALbkk8xf+vrWjySOr/LeSPhIfr35wkFI9vP8E7jpdynXRW p091bDGVSBn7asMpSnWDgECd0N0GXBpHx2pc7AcQKi36fxeGgyUQvLHsf8N3/9N/Litu oKgMQUutr/cc6xGElcT1ATzy2aradLa4FTZaKIjltlx4jrYPMLDTga816JPySib8d6vI dg5Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1768807649; x=1769412449; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=yKeLEi0Je2h1ztfLRVsk2xzeEcuQan8/cVyxDzyqXVw=; b=cz/QXym62gxMxdwNOS28QGrSxUigdKt/OpVtLw7syuJYybyBTCvOrrtsUrJ1wqLbgw tKB2b3Q5NMR7e8bzKDCDeIaGYZYHP1Tzw6bX47/99zmpeLEu1PWlGzq7pN5jU+BVLxzw 0v+gtaUaL+njhpjRD7qj8Qgf/33CYyLW+hmaub7efKpGBJEA82rQMMmAmLza9/RZ2EjS kHuMS9yGQ9NrX/Qnv5VptBYwSEjIVmYl+Ofjzax+DHkgS3bnaafA6CwJi6jONjcuH4id vo1MDdEtvfSvEJpWbLu1qhVFb8oMoUPTEu4AMdci7N1xWG9QaT5xadPjPEQMKc+3Vf9r ftqg== X-Gm-Message-State: AOJu0YyzGxanfrtoIBhWgYjJrulE3wb7GmpGlVj2syjRy9F8wbdD12xC CO1bxSetABB12IouGpIOkJ0aIdWd4PMj8czxxTvnzal7hNBUqQeSGJSbwoRy2A== X-Gm-Gg: AY/fxX6sa1RRF/t9Q1OBT1d0+Uy0EmhypKEOT8U6FfRIw7DOeoS97vv7QH+EFZiqtiC 62hJGPbl7A9Xy1FRPbGb1GpIirZ7o/KOOPT9XMXiO1WusyjTquV9V1pQaX0WfwtaQBMxIqwUPkB BV5s1YdiG0uUIHeOJh9Pro1Hp7KsWTHKBt6GKSlBl1AZpw2FFiPd+1gBA9PMRyUh+OHZnp5nONh 7KfQQXtZzizRtSMnsNquAesaxwfuWW66fZ/g2iCEL1nC1HYS5kjdS1dv7ImZQOt4vwRSJsmcuJp JFteZhL8InWMhvSD+4+HFEcXabE/7GEmcTq/E5Q+DTJF5YTpdfm5mI0VN0+PxbwIgByNhiDPQ1d 2Ua7L6Mkxr1yYwJ3I6C1DpT/FXRZBkZPMzZH0aNR4rdubxPZ6DEbEJLbLDJNZZn4pvZOEENFHZY yWPwG+DYyOaaeuVn/F8gPonjEIaX4= X-Received: by 2002:a05:6a00:3a0f:b0:81f:45a2:cbe3 with SMTP id d2e1a72fcca58-81fa02ff9cdmr10707287b3a.54.1768807648768; Sun, 18 Jan 2026 23:27:28 -0800 (PST) From: Jeuk Kim X-Google-Original-From: Jeuk Kim To: qemu-devel@nongnu.org Cc: jeuk20.kim@samsung.com, qemu-block@nongnu.org, j-young.choi@samsung.com, Jeuk Kim Subject: [PATCH v2] hw/ufs: Ensure DBC of PRDT uses only lower 18 bits Date: Mon, 19 Jan 2026 16:27:20 +0900 Message-ID: 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 (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::434; envelope-from=jeuk20.kim@gmail.com; helo=mail-pf1-x434.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: 1768807702338158500 Content-Type: text/plain; charset="utf-8" From: Jeuk Kim 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 --- v2 - Fix PRDT DBC masking endianness --- 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..d3f08f2ba9 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