In the Linux kernel, the following vulnerability has been resolved: drm/logicvc: Fix device node reference leak in logicvcdrmconfigparse() The logicvcdrmconfigparse() function calls ofgetchildbyname() to find the "layers" node but fails to release the reference, leading to a device node reference leak. Fix this by using the _free(devicenode) cleanup attribute to automatic release the reference when the variable goes out of scope.