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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: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit 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/hx9023s.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; - memcpy(bin->data, fw->data, fw->size); - bin->fw_size = fw->size; + memcpy(bin->data, fw->data, bin->fw_size); bin->fw_ver = bin->data[FW_VER_OFFSET]; bin->reg_count = get_unaligned_le16(bin->data + FW_REG_CNT_OFFSET); -- 2.43.0