From: Javier Carrasco <javier.carrasco.cruz@xxxxxxxxx>
commit b62fbe3b8eedd3cf3c9ad0b7cb9f72c3f40815f0 upstream.
The 'scan' local struct is used to push data to user space from a
triggered buffer, but it does not set values for inactive channels, as
it only uses iio_for_each_active_channel() to assign new values.
Initialize the struct to zero before using it to avoid pushing
uninitialized information to userspace.
Cc: stable@xxxxxxxxxxxxxxx
Fixes: eab35358aae7 ("iio: light: ROHM BH1745 colour sensor")
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@xxxxxxxxx>
Link: https://patch.msgid.link/20241125-iio_memset_scan_holes-v1-7-0cb6e98d895c@xxxxxxxxx
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/iio/light/bh1745.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/iio/light/bh1745.c
+++ b/drivers/iio/light/bh1745.c
@@ -750,6 +750,8 @@ static irqreturn_t bh1745_trigger_handle
int i;
int j = 0;
+ memset(&scan, 0, sizeof(scan));
+
iio_for_each_active_channel(indio_dev, i) {
ret = regmap_bulk_read(data->regmap, BH1745_RED_LSB + 2 * i,
&value, 2);
Patches currently in stable-queue which might be from javier.carrasco.cruz@xxxxxxxxx are
queue-6.12/iio-pressure-zpa2326-fix-information-leak-in-triggered-buffer.patch
queue-6.12/iio-adc-ti-ads1119-fix-sample-size-in-scan-struct-for-triggered-buffer.patch
queue-6.12/iio-adc-ti-ads1119-fix-information-leak-in-triggered-buffer.patch
queue-6.12/iio-dummy-iio_simply_dummy_buffer-fix-information-leak-in-triggered-buffer.patch
queue-6.12/iio-imu-kmx61-fix-information-leak-in-triggered-buffer.patch
queue-6.12/iio-adc-rockchip_saradc-fix-information-leak-in-triggered-buffer.patch
queue-6.12/cpuidle-riscv-sbi-fix-device-node-release-in-early-e.patch
queue-6.12/iio-light-bh1745-fix-information-leak-in-triggered-buffer.patch
queue-6.12/iio-light-vcnl4035-fix-information-leak-in-triggered-buffer.patch
queue-6.12/iio-adc-ti-ads8688-fix-information-leak-in-triggered-buffer.patch
