In the Linux kernel, the following vulnerability has been resolved: USB: ULPI: fix memory leak with using debugfs_lookup() When calling debugfs_lookup() the result must have dput() called on it, otherwise the memory will leak over time. To make things simpler, just call debugfs_lookup_and_remove() instead which handles all of the logic at once.
https://git.kernel.org/stable/c/dcbe69f4f743a938344b32e60531ea55355e0c08
https://git.kernel.org/stable/c/8f4d25eba599c4bd4b5ea8ae8752cda480a9d563
https://git.kernel.org/stable/c/2b8aa879e28df11e45855b04788050c61fb6b02a