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iio: cros_ec: Fix the allocation size for cros_ec_command

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commit 8a4629055e upstream.

The struct cros_ec_command contains several integer fields and a
trailing array. An allocation size neglecting the integer fields can
lead to buffer overrun.

Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Yiyuan Guo <yguoaz@gmail.com>
Fixes: 974e6f02e2 ("iio: cros_ec_sensors_core: Add common functions for the ChromeOS EC Sensor Hub.")
Link: https://lore.kernel.org/r/20230630143719.1513906-1-yguoaz@gmail.com
Cc: <Stable@vger.kerenl.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Yiyuan Guo 2023-06-30 22:37:19 +08:00 committed by Greg Kroah-Hartman
parent 5aac2726b6
commit 366563c14f
1 changed files with 1 additions and 1 deletions
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2
drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c
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@ -253,7 +253,7 @@ int cros_ec_sensors_core_init(struct platform_device *pdev,
platform_set_drvdata(pdev, indio_dev);
state->ec = ec->ec_dev;
state->msg = devm_kzalloc(&pdev->dev,
state->msg = devm_kzalloc(&pdev->dev, sizeof(*state->msg) +
max((u16)sizeof(struct ec_params_motion_sense),
state->ec->max_response), GFP_KERNEL);
if (!state->msg)