CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel's netfilter component, specifically the x_tables functionality, which can lead to improper handling of table unregistration during module removal. This flaw may allow userspace applications to encounter issues when attempting to re-instantiate a table, potentially disrupting network operations. Organizations using Linux systems, particularly those relying on custom netfilter configurations, should prioritize addressing this vulnerability due to its high severity rating.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: x_tables: add and use xtables_unregister_table_exit Previous change added xtables_unregister_table_pre_exit to detach the table from the packetpath and to unlink it from the active table list. In case of rmmod, userspace that is doing set/getsockopt for this table will not be able to re-instantiate the table: 1. The larval table has been removed already 2. existing instantiated table is no longer on the xt pernet table list. This adds the second stage helper: unlink the table from the dying list, free the hook ops (if any) and do the audit notification. It replaces xt_unregister_table().