CVE-2022-50244

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> cxl: fix possible null-ptr-deref in cxl_pci_init_afu|adapter()<br /> <br /> If device_register() fails in cxl_pci_afu|adapter(), the device<br /> is not added, device_unregister() can not be called in the error<br /> path, otherwise it will cause a null-ptr-deref because of removing<br /> not added device.<br /> <br /> As comment of device_register() says, it should use put_device() to give<br /> up the reference in the error path. So split device_unregister() into<br /> device_del() and put_device(), then goes to put dev when register fails.