CVE-2023-53645 | Linux Kernel up to 6.4.3 bpf_refcount_acquire use after free

October 7, 2025 Yanac

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 6.4.3. Affected by this vulnerability is the function bpf_refcount_acquire. The manipulation leads to use after free.

This vulnerability is listed as CVE-2023-53645. The attack must be carried out from within the local network. There is no available exploit.

It is advisable to upgrade the affected component.VulDB Recent EntriesRead More