In the Linux kernel, the following vulnerability has been resolved: drivers: base: dd: 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/8e47e2bf78812adbd73c45c941d3c51add30b58d
https://git.kernel.org/stable/c/7f1e53f88e8babf293ec052b70aa9d2a3554360c
https://git.kernel.org/stable/c/5a7a9efdb193d3c8a35821548a8e99612c358828
https://git.kernel.org/stable/c/36c893d3a759ae7c91ee7d4871ebfc7504f08c40