CVE-2022-50653

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> mmc: atmel-mci: fix return value check of mmc_add_host()<br /> <br /> mmc_add_host() may return error, if we ignore its return value,<br /> it will lead two issues:<br /> 1. The memory that allocated in mmc_alloc_host() is leaked.<br /> 2. In the remove() path, mmc_remove_host() will be called to<br /> delete device, but it&amp;#39;s not added yet, it will lead a kernel<br /> crash because of null-ptr-deref in device_del().<br /> <br /> So fix this by checking the return value and calling mmc_free_host()<br /> in the error path.