In gb_camera_capture(), it does not check the value of settings before dereferencing it. And gb_camera_debugfs_capture calls gb_camera_capture with the 6th parameter settings as NULL.
Fix this by checking the value of setting at the starting of gb_camera_capture.
Fixes: 3265edaf0d70 ("greybus: Add driver for the camera class protocol") Signed-off-by: Dongliang Mu dzm91@hust.edu.cn --- drivers/staging/greybus/camera.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/greybus/camera.c b/drivers/staging/greybus/camera.c index cdbb42cd413b..5a4b26e7f645 100644 --- a/drivers/staging/greybus/camera.c +++ b/drivers/staging/greybus/camera.c @@ -659,7 +659,7 @@ static int gb_camera_capture(struct gb_camera *gcam, u32 request_id, size_t req_size; int ret;
- if (settings_size > GB_CAMERA_MAX_SETTINGS_SIZE) + if (settings_size > GB_CAMERA_MAX_SETTINGS_SIZE || !settings) return -EINVAL;
req_size = sizeof(*req) + settings_size;