CVE-2026-89708 | Linux Kernel up to 6.18.49/7.2.3 nfsd nfsd4_probe_callback_sync cl_cb_session use after free (Nessus ID 345421)

A vulnerability was found in Linux Kernel up to 6.18.49/7.2.3 and classified as very critical. Affected by this issue is the function nfsd4_probe_callback_sync of the component nfsd. The manipulation of the argument cl_cb_session results in use after free. This vulnerability is identified as CVE-2026-89708. The attack can be executed remotely....