I ran Smatch over the code and it spotted an off by one.
On Wed, Sep 16, 2020 at 10:36:18PM +0100, Daniel Scally wrote:
> +#define MAX_CONNECTED_DEVICES 4
> +#define SWNODE_SENSOR_HID 0
> +#define SWNODE_SENSOR_PORT 1
> +#define SWNODE_SENSOR_ENDPOINT 2
> +#define SWNODE_CIO2_PORT 3
> +#define SWNODE_CIO2_ENDPOINT 4
> +#define SWNODE_NULL_TERMINATOR 5
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> +struct sensor {
> + struct device *dev;
> + struct software_node swnodes[5];
^^^^^^^^^^
This needs to be 6 instead of 5 to prevent memory corruption.
> + struct property_entry sensor_props[6];
> + struct property_entry cio2_props[3];
> + struct fwnode_handle *fwnode;
> +};
> + nodes[SWNODE_NULL_TERMINATOR] = SOFTWARE_NODE_NULL;
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Here.
regards,
dan carpenter
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