CVE-2025-21887 | Linux Kernel up to 5.15.178/6.1.129/6.6.80/6.12.17/6.13.5 fs/overlayfs/util.c dput use after free
A vulnerability has been found in Linux Kernel up to 5.15.178/6.1.129/6.6.80/6.12.17/6.13.5 and classified as critical. Affected by this vulnerability is the function dput in the library fs/overlayfs/util.c. The manipulation leads to use after free.
This vulnerability is known as CVE-2025-21887. The attack needs to be done within the local network. There is no exploit available.
It is recommended to upgrade the affected component.