From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 5500E23D2B1 for ; Thu, 4 Jun 2026 23:49:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780616981; cv=none; b=Qrvhnl5X0F7Hk3koB+sZtpcABovAF/WRIARw8RP456z8yOUn5s9wk8DbFjzUKzsFaUcsH1dBZ2pDiVNaKz40UWuYSHdBDd7KlRt0Ox9EZ8J2s3pFfy9ixgzcdRm54yB2EqzUz6D4RRt7k1V0eY3FhuVtTlsJBJ7AeZj1kNkdAok= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780616981; c=relaxed/simple; bh=+whGo6ZIDIz8BUU7OxntGw4icXzKoi3EBmNyNHpp2Hg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=VbfDvsn5RddvzvLCd4NH/svtlrCfwMNYReGpG6aAGn2/vhXPf/dI7x6q1qQR4Inq/VFNywr2xrPxcrKfq5y8YG7FZQbVI0KfhnxZFl7ndpHs5djSe7+ESzIqG/Cta+cefyP7QJliAvMbvT6hk3pCKGZeDitMii/StejZ28ekwgw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Kvytv2an; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Kvytv2an" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5815E1F00893; Thu, 4 Jun 2026 23:49:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1780616980; bh=XB9gs2JbWkb0blcNCyuEBzv8mSgI+42BYzx60emjoaw=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=Kvytv2anteH9riwBUsga+dATzeq4LN6dCKcy9wfYqk+YEzspvxucPZi7w7YAG7tlf 3gumoAbagVB3H/66NjoP+wB4BbVpJRpQeO8iZYwLYPqUEu0JQTz6QPUhnw/mRIH1Qw fWac6+2cZzv/6L1N2RmxPwPjdSx65mzIv1iOn9mOW3ZwWRhEUc49Fy2rUW2W1ouLZQ pKeaulEeB861mvFASJfCrdv5iHciyZpXVf0yoQTkprF6E1N3l83wBHRtv59Xzk5jF0 DXrXMsXg1Q4od4yuKp90hY/nIl67rKheoEEP/3JndCm9abZoCsQQEuEl2+gAlTGCq2 BaOChce5b8pRg== From: Sasha Levin To: stable@vger.kernel.org Cc: Antoniu Miclaus , =?UTF-8?q?Nuno=20S=C3=A1?= , Stable@vger.kernel.org, Jonathan Cameron , Sasha Levin Subject: [PATCH 5.10.y] iio: gyro: adis16260: fix division by zero in write_raw Date: Thu, 4 Jun 2026 19:49:37 -0400 Message-ID: <20260604234937.2471947-1-sashal@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <2026060454-applause-magnify-a2fc@gregkh> References: <2026060454-applause-magnify-a2fc@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Antoniu Miclaus [ Upstream commit 761e8b489e6cf166c574034b70637f8a7eadd0ee ] Add a validation check for the sampling frequency value before using it as a divisor. A user writing zero to the sampling_frequency sysfs attribute triggers a division by zero in the kernel. Fixes: 089a41985c6c ("staging: iio: adis16260 digital gyro driver") Signed-off-by: Antoniu Miclaus Reviewed-by: Nuno Sá Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Sasha Levin --- drivers/iio/gyro/adis16260.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/iio/gyro/adis16260.c b/drivers/iio/gyro/adis16260.c index 1e45d93de5b7ca..27f5ee4148ff30 100644 --- a/drivers/iio/gyro/adis16260.c +++ b/drivers/iio/gyro/adis16260.c @@ -293,6 +293,9 @@ static int adis16260_write_raw(struct iio_dev *indio_dev, addr = adis16260_addresses[chan->scan_index][1]; return adis_write_reg_16(adis, addr, val); case IIO_CHAN_INFO_SAMP_FREQ: + if (val <= 0) + return -EINVAL; + mutex_lock(&adis->state_lock); if (spi_get_device_id(adis->spi)->driver_data) t = 256 / val; -- 2.53.0