In the Linux kernel, the following vulnerability has been resolved: misc: vmw_balloon: 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/f7651fa88b17c2d7af949981a2423179db5e9453
https://git.kernel.org/stable/c/d1c545e44c1ec08bef0c0c14e632eec516431e9c
https://git.kernel.org/stable/c/b94b39bf3d545671f210a2257d18e33c8b874699
https://git.kernel.org/stable/c/209cdbd07cfaa4b7385bad4eeb47e5ec1887d33d