From nobody Mon Oct 6 06:29:02 2025 Received: from mail-oo1-f45.google.com (mail-oo1-f45.google.com [209.85.161.45]) (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 2D4F32F5310 for ; Wed, 23 Jul 2025 15:29:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.45 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753284564; cv=none; b=sqAMUxl6r6QuPwZY9mXNMkYKdbEakWohc1f6PiCHugGyN6RzFifxjiulMrJC4TyBD5oVjPRkwdc7jK+dQWXZBnp/Rp5hzHCx0ij4QAsEUdRoFOdknkRrciGT0rqBIHE0nif/NoDcCiv1V8o05/Yg1ltox78hmDJoGvRafUZSYpY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753284564; c=relaxed/simple; bh=I8prMzuBcDXZ857CRmzJv7VW1BMuBb+kd79S5VeLnH0=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To:Cc; b=gY+WFOTcymXrhv/mwQ3ZzjMo809dRvCf+Zx8r02A95YEbsqjm5E2uMz8xcwVUhRHvfAgaWMueqi/lhjLHV/cRJGz3nlgsffgyY9nf2heLwtNfO9b0KU14kePs8kZ2FPc6XbRsfvm3fgwplfoACy2e5WF6GfAv/TxS9wOfvFVU3o= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=baylibre.com; spf=pass smtp.mailfrom=baylibre.com; dkim=pass (2048-bit key) header.d=baylibre-com.20230601.gappssmtp.com header.i=@baylibre-com.20230601.gappssmtp.com header.b=qMn/Kray; arc=none smtp.client-ip=209.85.161.45 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=baylibre.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=baylibre.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=baylibre-com.20230601.gappssmtp.com header.i=@baylibre-com.20230601.gappssmtp.com header.b="qMn/Kray" Received: by mail-oo1-f45.google.com with SMTP id 006d021491bc7-61593d51267so22464eaf.0 for ; Wed, 23 Jul 2025 08:29:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20230601.gappssmtp.com; s=20230601; t=1753284561; x=1753889361; darn=vger.kernel.org; h=cc:to:message-id:content-transfer-encoding:mime-version:subject :date:from:from:to:cc:subject:date:message-id:reply-to; bh=4Al3ZnTse2+tczXQwH279dMGvstxFBA2utm8tKg3aYg=; b=qMn/Krayr3JmVRRE/t2wZaonwB32Gs0RI9Zp7uX6np1QCpXFywX/qLvgxq7EXuNOcT Fq/c/M19YHleMzOhbhQiRc7XGaywE1yi91TG7SkcSSSBKKuOfL20STGMivskdUArUL57 RKyEXy+k8e8z5ADg3QwNgjLS15U46cr3FeLZhgu9nHf5dUzWOhOs8YGfRlTugdaMLwxX t1FbWbISkeBZcdQHauvjZTLdzqZhZJ1UufgcsieN9tZXI0oXp8PMCzL9XN+q271wt50N HrWlpkL2jKnnb+/ND4gmqLJQtXJyCn+ngLk6pQkDgrmGFsSPnN85MgmrrRyoCTmZLzSS 8QrA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1753284561; x=1753889361; h=cc:to:message-id:content-transfer-encoding:mime-version:subject :date:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=4Al3ZnTse2+tczXQwH279dMGvstxFBA2utm8tKg3aYg=; b=p7xi9W2xtGa/3KBEAKR8hKCnevl1q0A1qhH8S8NH+ry2Y1qrOZ9o65cfmdEmYTfeGE MyB+S2yVL5UH/ySituMX3z5RCK1Lghw/fE2C/ApV+sgNov92x1CUalGQcOH+AbiBh9CE p+RdMtotnKmu20tZWAerlGO0mHEAihxYiasmUAebL5mKhuuD9MV0BBJgEmscKHO2kuXt kLSfpMygnxJaXlQZnI7CdcMOmvKrqlfedjkFN6G+fiQ2eqrpJ/0cF7wyVqEcvd86bZWz HG/NnMMj1G+Cw+ZVK3mXDYOMzMEoOUs0Uf9Qb8l4tb3WTEcCZMifqHTDcDu4Md5i1lId tRkw== X-Forwarded-Encrypted: i=1; AJvYcCU9O8Uuz0Aj2SD2WvvyxzhYBCFXRr/sjgmNb7IgOkixGppK3oD/ha3N7QOtLQM6F0iGgWZoUj9jLUywkKo=@vger.kernel.org X-Gm-Message-State: AOJu0YwdZF8YRUjU8PCqAbiCwTfTY6yKC+2YdGAUwahNgmabQB6+Xkov KE224xVUAVE1pWAE7VYwXMBmXns0WZ4pnthG6qNjoT2zcs+CiK/JSlgaFSn/JmgX887RmXpZjZm zR3W1 X-Gm-Gg: ASbGnctJaJwAfOqX9x3/j5wlo13kZcTK/vNdXz+TeVLxd+WP2TQzf4O8DiHlANIXgqH sgxLFQP7Lvgrq0mz1vq/IzJNABstgIMLAR9TC+2ei8IR1FdU/ps76XVq4HI5HSdr95jSKuSMPsG PSX+XZ2EMBy3PNWGi7Qfn553w0wT4zlEqYbznbx2taIW1c4cv4Wl2ukIrDGPeL710hZ33J2MdSJ z9CrGOHyeQ29AffHAkdCV3WXmltiRtTIAG+QnEB/+PRuQPhxPGl6vJvGdFY4xtwTJj5icSsb3l9 7Ba3DIJulVQeqmnZzjaETFWOmgmjhiiSK65D57MIs1XGS+lxoBeVAhl9A1fjDiGa/J9yARn5NXO Tu+loXpfZwt/t8xXN5AMi8LVYf9k= X-Google-Smtp-Source: AGHT+IEsag1bTNogfBmOUZnDG8/YmooD6O4BEiaqkmsTy6ubZndk9JILI+eemiJPseoD3CNhHpwbmA== X-Received: by 2002:a05:6870:c394:b0:2ff:a521:1c2a with SMTP id 586e51a60fabf-306c730c84emr2236672fac.27.1753284561145; Wed, 23 Jul 2025 08:29:21 -0700 (PDT) Received: from [127.0.1.1] ([2600:8803:e7e4:1d00:11dd:c0f5:968d:e96]) by smtp.gmail.com with ESMTPSA id 586e51a60fabf-30104694f03sm5106877fac.44.2025.07.23.08.29.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 23 Jul 2025 08:29:20 -0700 (PDT) From: David Lechner Date: Wed, 23 Jul 2025 10:29:12 -0500 Subject: [PATCH] iio: accel: sca3300: fix uninitialized iio scan data 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: <20250723-iio-accel-sca3300-fix-uninitialized-iio-scan-data-v1-1-12dbfb3307b7@baylibre.com> X-B4-Tracking: v=1; b=H4sIAMf/gGgC/x2NSwqDQBBEryK9TsN8IoFcJWTRzrRJgbRhxoSge HcHl4+qV7VR1QKtdO82KvpDxWwN/KWj9BZ7KSM3puBC724hMjCzpKQT1yQxOscj/vw1GBbIhFX z2WmpcZZFOEU/+jhchz44arufok05Px/PfT8ALx5ohYMAAAA= X-Change-ID: 20250723-iio-accel-sca3300-fix-uninitialized-iio-scan-data-c31f13b4b520 To: Jonathan Cameron , =?utf-8?q?Nuno_S=C3=A1?= , Andy Shevchenko Cc: Jonathan Cameron , linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, David Lechner X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1262; i=dlechner@baylibre.com; h=from:subject:message-id; bh=I8prMzuBcDXZ857CRmzJv7VW1BMuBb+kd79S5VeLnH0=; b=owEBbQGS/pANAwAKAcLMIAH/AY/AAcsmYgBogP/Jnw6zfc0b6WaXfQK7r5GRTKeQvgf+kXrOu G+0I8GF83+JATMEAAEKAB0WIQTsGNmeYg6D1pzYaJjCzCAB/wGPwAUCaID/yQAKCRDCzCAB/wGP wMhJB/9qbNTaq/BdobRSDB0Dt8gq6aL4ZO0qI3hM/0SBReFGzc/YTiY4D647tocco+x0v+L45p4 v2k8QhQKAFuQXOM2eQt0Fp174Vqz15bn4B2JljXed5D7GK6htze5pqL7jAxg632png5OzfzeBGq OBfUGYP59veSXLNBpMt4VPsirD992HxNggKYoQnkxWNQNViJTX1EPL4ymEoG8pI+DT44TaM6zSO asjIpb88+06yEbHp7wkizrJq7X7Rq3pVVqJOMpGKypshj8vn5Vnhkf1KSNcfdKA/p+vLQNvMS3J D1FTSUuwqv86UGG0RD5lzhD50Eeql5cZvdAGNtK53EfBKz0z X-Developer-Key: i=dlechner@baylibre.com; a=openpgp; fpr=8A73D82A6A1F509907F373881F8AF88C82F77C03 Fix potential leak of uninitialized stack data to userspace by ensuring that the `channels` array is zeroed before use. Fixes: edeb67fbbf4b ("iio: accel: sca3300: use IIO_DECLARE_BUFFER_WITH_TS") Signed-off-by: David Lechner --- drivers/iio/accel/sca3300.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/accel/sca3300.c b/drivers/iio/accel/sca3300.c index bda370c0f660b2a603d7d70dbe5e088bf96eca7a..8380b237831cec8e7520335dd9f= 78a2f30531448 100644 --- a/drivers/iio/accel/sca3300.c +++ b/drivers/iio/accel/sca3300.c @@ -477,7 +477,7 @@ static irqreturn_t sca3300_trigger_handler(int irq, voi= d *p) struct iio_dev *indio_dev =3D pf->indio_dev; struct sca3300_data *data =3D iio_priv(indio_dev); int bit, ret, val, i =3D 0; - IIO_DECLARE_BUFFER_WITH_TS(s16, channels, SCA3300_SCAN_MAX); + IIO_DECLARE_BUFFER_WITH_TS(s16, channels, SCA3300_SCAN_MAX) =3D { }; =20 iio_for_each_active_channel(indio_dev, bit) { ret =3D sca3300_read_reg(data, indio_dev->channels[bit].address, &val); --- base-commit: cd2731444ee4e35db76f4fb587f12d327eec5446 change-id: 20250723-iio-accel-sca3300-fix-uninitialized-iio-scan-data-c31f1= 3b4b520 Best regards, --=20 David Lechner