CVE-2023-53097 Information

Description

In the Linux kernel the following vulnerability has been resolved:

powerpc/iommu: 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.

Reference

https://git.kernel.org/stable/c/24c1bd1cd0d1ff821fd7d2f01a1e648c7882dfc2 https://git.kernel.org/stable/c/4050498c0ae3946c223fc63e9dd7b878b76611e0 https://git.kernel.org/stable/c/b505063910c134778202dfad9332dfcecb76bab3 https://git.kernel.org/stable/c/e3a62a35f903fd8be5b44542fe3901ec45f16757