In the Linux kernel, the following vulnerability has been resolved:
block: fix resource leak in blkregisterqueue() error path
When registering a queue fails after blkmqsysfsregister() is successful but the function later encounters an error, we need to clean up the blkmq_sysfs resources.
Add the missing blkmqsysfs_unregister() call in the error path to properly clean up these resources and prevent a memory leak.