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 5D0AA32E13B; Tue, 16 Jun 2026 18:36:38 +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=1781634999; cv=none; b=nNo8W1FoVR/inKWT4qSfx1u4jfxWsiQs2arDWNpm4vIU8KS3nnTlZKHWdaoDlqw5Smxdj/6238vvei28UvPVqaNo41vdq6lLuKJKe+edVkt0tYTWXX2yvbAML4Qm1z//zr9gYlMETblP9g1bHqg121zx68SmjiBtTCYU7Fd7lAg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781634999; c=relaxed/simple; bh=QHjpsoRzz/VueV+/L6wpYtqhMymevbTUBJ06KKWMyrg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=QiKVUXyBrZ4sqkI0830ZYHrocJIpvT/7q8KnZ7iuYKN6mbdC9tkutgNC/fwuHvxi+l1vWFXUR0UEcoCtv5b9oFoEGuiXuPiXojsx+JrsHy+4ZHREdgd4rrA8fKmoudShEFfEjklFGVEkXmUfYio53LNBh8FiIhFj+vGSFshRI5k= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=x4lZx4Hg; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="x4lZx4Hg" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 69A6C1F000E9; Tue, 16 Jun 2026 18:36:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1781634998; bh=Yj0+k7rEeFrYNge57Dv5Ug4T+abe05D2/WlXeYRmrmo=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=x4lZx4Hgnp9IocmknQ+szILDJncG2ICw54y0lYjlDVZK76zK1qTxRilz8WO0B4CQO yiAyRcJN/J827aRUWfJheS92OscfopH2k0vsQTHhsvaGs9Gjbb4+YQeB30prGBYqHU KdRs5/gdXvsyW/M/uXyjzxisfCX/iSdzBFtlgzYE= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Antoniu Miclaus , =?UTF-8?q?Nuno=20S=C3=A1?= , Stable@vger.kernel.org, Jonathan Cameron , Sasha Levin Subject: [PATCH 5.15 364/411] iio: gyro: adis16260: fix division by zero in write_raw Date: Tue, 16 Jun 2026 20:30:02 +0530 Message-ID: <20260616145120.683827119@linuxfoundation.org> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260616145100.376842714@linuxfoundation.org> References: <20260616145100.376842714@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ 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 Signed-off-by: Greg Kroah-Hartman --- drivers/iio/gyro/adis16260.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/iio/gyro/adis16260.c +++ b/drivers/iio/gyro/adis16260.c @@ -288,6 +288,9 @@ static int adis16260_write_raw(struct ii 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; + adis_dev_lock(adis); if (spi_get_device_id(adis->spi)->driver_data) t = 256 / val;