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Sun, 08 Feb 2026 19:39:49 -0800 (PST) From: Yasin Lee Date: Mon, 09 Feb 2026 11:37:02 +0800 Subject: [PATCH 1/5] iio: proximity: hx9023s: fix out-of-bounds access when copying firmware Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260209-upstream-20260219-v1-1-2b4d74e309d1@gmail.com> References: <20260209-upstream-20260219-v1-0-2b4d74e309d1@gmail.com> In-Reply-To: <20260209-upstream-20260219-v1-0-2b4d74e309d1@gmail.com> To: Jonathan Cameron , David Lechner , =?utf-8?q?Nuno_S=C3=A1?= , Andy Shevchenko , Rob Herring , Krzysztof Kozlowski , Conor Dooley , yasin.lee.x@outlook.com Cc: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Yasin Lee X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=941; i=yasin.lee.x@gmail.com; h=from:subject:message-id; bh=ECn+IK/VfyQCC2gxaQrekOjXex2M2EXhTLmhUg6BTQM=; b=owGbwMvMwCEYyfeRr6Zs90zG02pJDJmdYT/OMs+4mFak0L+XceOWF0msMpG3F5R13jJ+8vKAZ 8ibYKWLHaUsDIIcDLJiiixnXr9hzVd9uCf4t2sGzBxWJpAhDFycAjCRYimGf3rBAfH8vU8MMs0P 3znzwVZ84/mAY6uOH43Jtrvl1jKLR4rhF9O3jbdmcfrK/vy8YPsNjT3fuENeFKtnmFizOuilJnX 6dQIA X-Developer-Key: i=yasin.lee.x@gmail.com; a=openpgp; fpr=CCEBEC056F25E1BC53FB4568590EF10E7C76BB99 Initialize fw_size before copying firmware data into the flexible array member to match the __counted_by() annotation. This fixes a potential out-of-bounds access that could lead to a kernel crash. Signed-off-by: Yasin Lee --- drivers/iio/proximity/hx9023s.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/iio/proximity/hx9023s.c b/drivers/iio/proximity/hx9023= s.c index 2918dfc0df54..ad839db6b326 100644 --- a/drivers/iio/proximity/hx9023s.c +++ b/drivers/iio/proximity/hx9023s.c @@ -1034,9 +1034,8 @@ static int hx9023s_send_cfg(const struct firmware *fw= , struct hx9023s_data *data if (!bin) return -ENOMEM; =20 - memcpy(bin->data, fw->data, fw->size); - bin->fw_size =3D fw->size; + memcpy(bin->data, fw->data, bin->fw_size); bin->fw_ver =3D bin->data[FW_VER_OFFSET]; bin->reg_count =3D get_unaligned_le16(bin->data + FW_REG_CNT_OFFSET); =20 --=20 2.43.0 From nobody Tue Feb 10 23:53:29 2026 Received: from mail-dl1-f47.google.com (mail-dl1-f47.google.com [74.125.82.47]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9B0C61F0E25 for ; Mon, 9 Feb 2026 03:39:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; 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a=openpgp-sha256; l=996; i=yasin.lee.x@gmail.com; h=from:subject:message-id; bh=DNGsEtjd1j4ZuRGsLgacguqxXG3+8LAwUt2gLAMGk9c=; b=owGbwMvMwCEYyfeRr6Zs90zG02pJDJmdYT/Sjb12bWr+PTs7xfTOlAXBawLOTt9VdZRFXmkbc 9+89xted5SyMAhyMMiKKbKcef2GNV/14Z7g364ZMHNYmUCGMHBxCsBERN8wMvRqz2Nl3XXIwfDF /9fzg7SflZoJ/f6k63PY2/7py//n5dwZGd7nWTe2Xr9z6nd9z5zO6g3+0lonvKesu7Vv+Xw1/kr 3jwsB X-Developer-Key: i=yasin.lee.x@gmail.com; a=openpgp; fpr=CCEBEC056F25E1BC53FB4568590EF10E7C76BB99 Avoid division by zero when sampling frequency is unspecified by falling back to a default 100ms sampling period. Signed-off-by: Yasin Lee --- drivers/iio/proximity/hx9023s.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/iio/proximity/hx9023s.c b/drivers/iio/proximity/hx9023= s.c index ad839db6b326..eb4902d18d74 100644 --- a/drivers/iio/proximity/hx9023s.c +++ b/drivers/iio/proximity/hx9023s.c @@ -719,7 +719,11 @@ static int hx9023s_set_samp_freq(struct hx9023s_data *= data, int val, int val2) struct device *dev =3D regmap_get_device(data->regmap); unsigned int i, period_ms; =20 - period_ms =3D div_u64(NANO, (val * MEGA + val2)); + if (!val && !val2) + /* Fallback to a safe default sampling period */ + period_ms =3D 100; + else + period_ms =3D div_u64(NANO, (val * MEGA + val2)); =20 for (i =3D 0; i < ARRAY_SIZE(hx9023s_samp_freq_table); i++) { if (period_ms =3D=3D hx9023s_samp_freq_table[i]) --=20 2.43.0 From nobody Tue Feb 10 23:53:29 2026 Received: from mail-dy1-f180.google.com (mail-dy1-f180.google.com [74.125.82.180]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E2EE923E34C for ; 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Sun, 08 Feb 2026 19:40:08 -0800 (PST) Received: from [127.0.1.1] ([45.32.86.188]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-2b855af5ca2sm7682073eec.8.2026.02.08.19.39.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 08 Feb 2026 19:40:08 -0800 (PST) From: Yasin Lee Date: Mon, 09 Feb 2026 11:37:04 +0800 Subject: [PATCH 3/5] iio: proximity: hx9023s: support firmware-name property Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260209-upstream-20260219-v1-3-2b4d74e309d1@gmail.com> References: <20260209-upstream-20260219-v1-0-2b4d74e309d1@gmail.com> In-Reply-To: <20260209-upstream-20260219-v1-0-2b4d74e309d1@gmail.com> To: Jonathan Cameron , David Lechner , =?utf-8?q?Nuno_S=C3=A1?= , Andy Shevchenko , Rob Herring , Krzysztof Kozlowski , Conor Dooley , yasin.lee.x@outlook.com Cc: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Yasin Lee X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1640; i=yasin.lee.x@gmail.com; h=from:subject:message-id; bh=FRQMDMtmr6RuDCT3QnoTS6pq66M/4574XQAa6lYWU3w=; b=owGbwMvMwCEYyfeRr6Zs90zG02pJDJmdYT9XLZPkMXd4Fc5muEj5n9jMcJv8RdauEZ88sjm2P OIKsCrqKGFhEORgkBVTZDnz+g1rvurDPcG/XTNg5rAygQxh4OIUgIn8nszwVdphqxlbD7+US1DF houvVJ4c/BywSiS/59nSG1uVmpyWMjJcLt3tMzfmz/8XlvOWLfu3vdrM7PYMa5a5/qVvHx/iWid UDwA= X-Developer-Key: i=yasin.lee.x@gmail.com; a=openpgp; fpr=CCEBEC056F25E1BC53FB4568590EF10E7C76BB99 Add an optional firmware-name property to specify the firmware file. If not provided, the driver falls back to the default firmware name. Signed-off-by: Yasin Lee --- drivers/iio/proximity/hx9023s.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/iio/proximity/hx9023s.c b/drivers/iio/proximity/hx9023= s.c index eb4902d18d74..b680b89956bd 100644 --- a/drivers/iio/proximity/hx9023s.c +++ b/drivers/iio/proximity/hx9023s.c @@ -1089,6 +1089,7 @@ static int hx9023s_probe(struct i2c_client *client) struct device *dev =3D &client->dev; struct iio_dev *indio_dev; struct hx9023s_data *data; + const char *fw_name =3D "hx9023s.bin"; int ret; =20 indio_dev =3D devm_iio_device_alloc(dev, sizeof(*data)); @@ -1111,6 +1112,10 @@ static int hx9023s_probe(struct i2c_client *client) if (ret) return dev_err_probe(dev, ret, "regulator get failed\n"); =20 + ret =3D device_property_read_string(dev, "firmware-name", &fw_name); + if (ret && ret !=3D -EINVAL) + return dev_err_probe(dev, ret, "failed to read firmware-name\n"); + ret =3D hx9023s_id_check(indio_dev); if (ret) return dev_err_probe(dev, ret, "id check failed\n"); 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Sun, 08 Feb 2026 19:40:16 -0800 (PST) Received: from [127.0.1.1] ([45.32.86.188]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-2b855af5ca2sm7682073eec.8.2026.02.08.19.40.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 08 Feb 2026 19:40:16 -0800 (PST) From: Yasin Lee Date: Mon, 09 Feb 2026 11:37:05 +0800 Subject: [PATCH 4/5] dt-bindings: iio: proximity: hx9023s: support firmware-name property Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260209-upstream-20260219-v1-4-2b4d74e309d1@gmail.com> References: <20260209-upstream-20260219-v1-0-2b4d74e309d1@gmail.com> In-Reply-To: <20260209-upstream-20260219-v1-0-2b4d74e309d1@gmail.com> To: Jonathan Cameron , David Lechner , =?utf-8?q?Nuno_S=C3=A1?= , Andy Shevchenko , Rob Herring , Krzysztof Kozlowski , Conor Dooley , yasin.lee.x@outlook.com Cc: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Yasin Lee X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1109; i=yasin.lee.x@gmail.com; h=from:subject:message-id; bh=lTyWo1eRqW5DX8yvyPANL+LdjOU0rOclI0glDjp/zjY=; b=owGbwMvMwCEYyfeRr6Zs90zG02pJDJmdYT83dhi0L6wvDXt1ef2nXU4L13tc0D/84NH54J7DB 9War5j6dpSyMAhyMMiKKbKcef2GNV/14Z7g364ZMHNYmUCGMHBxCsBEnLMZGY65WFbFXOsWKJic 8cJN4hHv45tWj/rWnbohrfGJrfPY3I8M/6zluT5WbLlV/ZTf6qYGz+HrAW7LeA6fOsV9+TWHSM/ r7SEA X-Developer-Key: i=yasin.lee.x@gmail.com; a=openpgp; fpr=CCEBEC056F25E1BC53FB4568590EF10E7C76BB99 Allow specifying the firmware file name via device tree. Signed-off-by: Yasin Lee --- Documentation/devicetree/bindings/iio/proximity/tyhx,hx9023s.yaml | 7 ++++= +++ 1 file changed, 7 insertions(+) diff --git a/Documentation/devicetree/bindings/iio/proximity/tyhx,hx9023s.y= aml b/Documentation/devicetree/bindings/iio/proximity/tyhx,hx9023s.yaml index 64ce8bc8bd36..7e516fc011c6 100644 --- a/Documentation/devicetree/bindings/iio/proximity/tyhx,hx9023s.yaml +++ b/Documentation/devicetree/bindings/iio/proximity/tyhx,hx9023s.yaml @@ -28,6 +28,12 @@ properties: =20 vdd-supply: true =20 + firmware-name: + description: + Name of the firmware file to be requested by the driver using + the firmware loader interface. + maxItems: 1 + "#address-cells": const: 1 =20 @@ -65,6 +71,7 @@ examples: interrupt-parent =3D <&pio>; interrupts =3D <16 IRQ_TYPE_EDGE_FALLING>; vdd-supply =3D <&pp1800_prox>; + firmware-name =3D "hx9023s.bin"; =20 #address-cells =3D <1>; #size-cells =3D <0>; --=20 2.43.0 From nobody Tue Feb 10 23:53:29 2026 Received: from mail-dl1-f41.google.com (mail-dl1-f41.google.com [74.125.82.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F2A8D23E34C for ; 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Sun, 08 Feb 2026 19:40:22 -0800 (PST) Received: from [127.0.1.1] ([45.32.86.188]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-2b855af5ca2sm7682073eec.8.2026.02.08.19.40.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 08 Feb 2026 19:40:22 -0800 (PST) From: Yasin Lee Date: Mon, 09 Feb 2026 11:37:06 +0800 Subject: [PATCH 5/5] iio: proximity: hx9023s: add ACPI support Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260209-upstream-20260219-v1-5-2b4d74e309d1@gmail.com> References: <20260209-upstream-20260219-v1-0-2b4d74e309d1@gmail.com> In-Reply-To: <20260209-upstream-20260219-v1-0-2b4d74e309d1@gmail.com> To: Jonathan Cameron , David Lechner , =?utf-8?q?Nuno_S=C3=A1?= , Andy Shevchenko , Rob Herring , Krzysztof Kozlowski , Conor Dooley , yasin.lee.x@outlook.com Cc: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Yasin Lee X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1694; i=yasin.lee.x@gmail.com; h=from:subject:message-id; bh=VzX6g3lIajNovlrTefHtsXrHHczuBrvgOnSyCfqNkC4=; b=owGbwMvMwCEYyfeRr6Zs90zG02pJDJmdYT9dhMrjVk4/Xr6ToV34eco7Bf5K48X6dZvEVd7du 3XAvz6jo5SFQZCDQVZMkeXM6zes+aoP9wT/ds2AmcPKBDKEgYtTACbydSrD/4zGKpmdmyyzcncK pO9w9vrwLeCuq/98N5kzeVo+AaJPxRj+F83TW2Lst3Tq/gWR0zM5qq43/7SQqVGPjtutH3rY4It vBAA= X-Developer-Key: i=yasin.lee.x@gmail.com; a=openpgp; fpr=CCEBEC056F25E1BC53FB4568590EF10E7C76BB99 Extend the hx9023s driver to support ACPI matching by adding TYHX9023 to the ACPI device ID table. Signed-off-by: Yasin Lee --- drivers/iio/proximity/hx9023s.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/iio/proximity/hx9023s.c b/drivers/iio/proximity/hx9023= s.c index b680b89956bd..6bf5a02c3615 100644 --- a/drivers/iio/proximity/hx9023s.c +++ b/drivers/iio/proximity/hx9023s.c @@ -8,6 +8,7 @@ * http://www.tianyihexin.com/ueditor/php/upload/file/20240614/17183363039= 92081.pdf */ =20 +#include #include #include #include @@ -1106,7 +1107,7 @@ static int hx9023s_probe(struct i2c_client *client) =20 ret =3D hx9023s_property_get(data); if (ret) - return dev_err_probe(dev, ret, "dts phase failed\n"); + return dev_err_probe(dev, ret, "failed to get device properties\n"); =20 ret =3D devm_regulator_get_enable(dev, "vdd"); if (ret) @@ -1195,6 +1196,12 @@ static int hx9023s_resume(struct device *dev) static DEFINE_SIMPLE_DEV_PM_OPS(hx9023s_pm_ops, hx9023s_suspend, hx9023s_resume); =20 +static const struct acpi_device_id hx9023s_acpi_match[] =3D { + { "TYHX9023", 0 }, + { } +}; +MODULE_DEVICE_TABLE(acpi, hx9023s_acpi_match); + static const struct of_device_id hx9023s_of_match[] =3D { { .compatible =3D "tyhx,hx9023s" }, { } @@ -1210,6 +1217,7 @@ MODULE_DEVICE_TABLE(i2c, hx9023s_id); static struct i2c_driver hx9023s_driver =3D { .driver =3D { .name =3D "hx9023s", + .acpi_match_table =3D hx9023s_acpi_match, .of_match_table =3D hx9023s_of_match, .pm =3D &hx9023s_pm_ops, =20 --=20 2.43.0