From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0b-00128a01.pphosted.com (mx0a-00128a01.pphosted.com [148.163.135.77]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5F3DC2EDD53; Tue, 6 Oct 2026 18:16:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.163.135.77 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791310596; cv=none; b=keNBSU7ETi3mUoY0Sjk2svp6KdYGcFcA1RVIIFx28++QNEn3KVzMPYzISrzt4aCjxFW6vCuQ/mMWsuyKUAiDBy5TdrTCpSIofXSKv4IUV162MZJ5ThZczeTPg5koMQilAlrd1vXRko19RdmcqjUr1cuZdYgX4gov1mCoZQN/XzY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791310596; c=relaxed/simple; bh=AVxH2/N0/PRvuYPYDqdeJiSoMSc4NNoGb+ptrEjtu24=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=CZfsAbr1Q3m8L/QPvP9p2SNNgxV+McGrfz2M0OlViKAnfcj9/GL+H/mHLOFJdhsgs5QOKnIEnMhz+81M6xetcFtrKnBwi1ofXPeaHXdOUi7lfJg2WGaIoClMogxza+HkLq6YXLcAsrDfzwPTUiZjmJ/vt3ApBOtcFgyQlhomJKE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=analog.com; spf=pass smtp.mailfrom=analog.com; dkim=pass (2048-bit key) header.d=vtelectron.com header.i=@vtelectron.com header.b=MCTORzgH; dkim=pass (2048-bit key) header.d=analog.com header.i=@analog.com header.b=O6oqilTa; arc=none smtp.client-ip=148.163.135.77 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=analog.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=analog.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=vtelectron.com header.i=@vtelectron.com header.b="MCTORzgH"; dkim=pass (2048-bit key) header.d=analog.com header.i=@analog.com header.b="O6oqilTa" Received: from pps.filterd (m0375855.ppops.net [127.0.0.1]) by mx0b-00128a01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 696HgaIG1610022; Tue, 6 Oct 2026 14:16:26 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=vtelectron.com; h=cc:content-transfer-encoding:content-type:date:from :in-reply-to:message-id:mime-version:references:subject:to; s= DKIM; bh=ZA8dUIu0Mv0gyFMZ4bDh67pqwF7MgUsbSQj82RmLL1c=; b=MCTORzg H3TLkkdA/XnuncrvoaCV7Bvcp7rFCcM8QMyQlqDe2WR4XVI0QKsz/nHw/FalBze+ uPUOnaH0CUYLCcF5//NgQMEScAx4X1RWvSrzckyoFuwhapT9HT3j+01i+OtUrfy7 /oR1sd0ryplwFK0nT1695SB8PTCfYHLOiOyr3FbAKmSe9BrQ9kLoYK6jDFYvdvpZ JMUkhnDMrm2XND6datOnkFhrHZM+QFCfxgRJoX6L/odgLa53kimYLWlk1CTnDVQ9 bzcznNX8URraR2Z/lZohorD/o5BCvOItBMXOAFOkig2nGgqCrc3AVb8t91IsMhfd etxIE5S05Wq9kzA== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=analog.com; h=cc :content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=DKIM; bh=ZA8dU Iu0Mv0gyFMZ4bDh67pqwF7MgUsbSQj82RmLL1c=; b=O6oqilTavO5yBlshXsAeO RDloWK63U6HtEmHm0+MHDG4DJHNC7e181g9GYPkZ5Rp6ujZkEFDZU/oO+F65Zy/U alRXzuc4PIFwHI72REFTBrlGRrQhL+c6jk3e9TbTtLGKWDHWUPt1+ihqHMy//oYz m3Qfn21tMZIH/kRNtc7k/IMVqsSUsi8DjHMfOTC/Fgd6f8PFQLZJzAoSNXnljqfC I0Q7rNYKnUE7xlwAdDUugkP4nL0Qm5bxmqHOzPQ0Z9xQfHp7SIlaT4YavRqmdMaU s9D4t84CxQgf14N31LSqLgNw9eVD/IjW0yfC1gQZGy/gG861bBeaYo/n1+OTXqLy g== Received: from nwd2mta4.analog.com ([137.71.173.58]) by mx0b-00128a01.pphosted.com (PPS) with ESMTPS id 4h4ub43s8p-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 06 Oct 2026 14:16:26 -0400 (EDT) Received: from ASHBMBX9.ad.analog.com (ASHBMBX9.ad.analog.com [10.64.17.10]) by nwd2mta4.analog.com (8.14.7/8.14.7) with ESMTP id 696IGPB8009966 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 6 Oct 2026 14:16:25 -0400 Received: from ASHBCASHYB4.ad.analog.com (10.64.17.132) by ASHBMBX9.ad.analog.com (10.64.17.10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1748.37; Tue, 6 Oct 2026 14:16:25 -0400 Received: from ASHBMBX8.ad.analog.com (10.64.17.5) by ASHBCASHYB4.ad.analog.com (10.64.17.132) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1748.37; Tue, 6 Oct 2026 14:16:25 -0400 Received: from zeus.spd.analog.com (10.66.68.11) by ashbmbx8.ad.analog.com (10.64.17.5) with Microsoft SMTP Server id 15.2.1748.37 via Frontend Transport; Tue, 6 Oct 2026 14:16:25 -0400 Received: from work.maxim-ic.internal ([10.66.6.193]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 696IGBXp000976; Tue, 6 Oct 2026 14:16:13 -0400 From: Marcelo Schmitt To: , , , CC: , , , , , , , , , , Subject: [PATCH v4 01/13] iio: adc: ad4134: Adjust register map range Date: Tue, 6 Oct 2026 15:16:06 -0300 Message-ID: <5c03ec5e764a5fed7bbeb6ed625d5b044b76ad2b.1791309733.git.marcelo.schmitt@analog.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ADIRuleOP-NewSCL: Rule Triggered X-Proofpoint-ORIG-GUID: 3VjmcHPcuhMOUD0hz6AuUOkMJyEQJlHs X-Proofpoint-GUID: 3VjmcHPcuhMOUD0hz6AuUOkMJyEQJlHs X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDA2MDA3MiBTYWx0ZWRfX3rFsFQs1VKQS WfEKklfuvzDOpyXoOojEIWMoIz3oIrKw6XASm/pNqRvGqZVT7JWvpOl/LwCoUEkNZzzbIgirtg4 9Td+cE2aYbG6MhfwxK9QleruvwUloifcW4X7UxlExWdR69GnT3/wUnR6Jr2+B1QpOjKYsLYFupX PqkEIUs6fLCsXVLfrb/pQPmWm0nQQtIYUwvCGBdOPzg7hr+zfnxcZiMj/jZwWdZoks2o/vGc7bX lpgEqLWo0i3CM1t/wQxIf2bAAOR4OTwk7VftrhHb+y7NM4mwzD0ClEVNLISv4tNqMTpGNwijCpp SEZ0hVntJP7S+pYi1PEW5nquzkNtjP7vs/58RxqFNSkUDfZAF+lweHZVJV9tXDGJAwJx2WCCq2l UV96fZgsGQCPMrnnU1LhHEyJml2xsTVZ0HVbEZyfea+RpwHuWap/8hLUdwmust9EOZh3y0yO1DF x5dlGK/uCemQVdwYAkA== X-Authority-Analysis: v=2.4 cv=O46sLx9W c=1 sm=1 tr=0 ts=6ac53afa cx=c_pps a=3WNzaoukacrqR9RwcOSAdA==:117 a=3WNzaoukacrqR9RwcOSAdA==:17 a=660iZSQnnn4A:10 a=VkNPw1HP01LnGYTKEx00:22 a=0sLvza09kfJOxVLZPwjg:22 a=N--XFCr6TIEc_64PeIT2:22 a=gAnH3GRIAAAA:8 a=xatGmy-HaK2A-VLG5J8A:9 X-Proofpoint-Spam-Info: AW1haW4tMjYxMDA2MDA3MiBTYWx0ZWRfX33pH/AgteGJZ +IUOOgj1zEMtfcpEwcmXGYfdGLyyZEDLJgThp+NwLh/7zpjLTtKWS7svCNSN1VpYHCgm4MDbnVS xTTx9W5MHcqCKfVfVK+ZBO64SKRtgDBzA0OTcmJfzVw0nm7l8AWZ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-10-06_05,2026-10-06_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 spamscore=0 lowpriorityscore=0 priorityscore=1501 clxscore=1015 suspectscore=0 malwarescore=0 impostorscore=0 bulkscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2610060072 Due to a off-by-one mistake, privileged users would be able to read from an unsupported register address when reading device registers through a debug interface. Correct the off-by-one mistake at the high register map range to prevent access of unsupported addresses. Fixes: e0bc6d7e2584 ("iio: adc: Initial support for AD4134") Signed-off-by: Marcelo Schmitt --- No changes in v4. drivers/iio/adc/ad4134.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/iio/adc/ad4134.c b/drivers/iio/adc/ad4134.c index 70f80bf1825f..e53c10b9a44a 100644 --- a/drivers/iio/adc/ad4134.c +++ b/drivers/iio/adc/ad4134.c @@ -111,7 +111,7 @@ static const struct regmap_range ad4134_regmap_rd_range[] = { regmap_reg_range(AD4134_IFACE_CONFIG_A_REG, AD4134_SILICON_REV_REG), regmap_reg_range(AD4134_SCRATCH_PAD_REG, AD4134_PW_DOWN_CTRL_REG), regmap_reg_range(AD4134_DEVICE_STATUS_REG, AD4134_AIN_OR_ERROR_REG), - regmap_reg_range(AD4134_CH_VREG(0), AD4134_CH_VREG(AD4134_NUM_CHANNELS)), + regmap_reg_range(AD4134_CH_VREG(0), AD4134_CH_VREG(AD4134_NUM_CHANNELS - 1)), }; static const struct regmap_range ad4134_regmap_wr_range[] = { @@ -244,7 +244,7 @@ static const struct regmap_config ad4134_regmap_config = { .reg_write = ad4134_reg_write, .rd_table = &ad4134_regmap_rd_table, .wr_table = &ad4134_regmap_wr_table, - .max_register = AD4134_CH_VREG(ARRAY_SIZE(ad4134_chan_set)), + .max_register = AD4134_CH_VREG(ARRAY_SIZE(ad4134_chan_set) - 1), }; static int ad4134_read_raw(struct iio_dev *indio_dev, -- 2.53.0