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CVE-2026-64078

netfilter: x_tables: add and use xtables_unregister_table_exit PUBLISHED

Description (CNA)

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().

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected fdacd57c79b79a03c7ca88f706ad9fb7b46831c1 before 86ee5bc9c0f0e652e19f395675a432de11b75514; affected fdacd57c79b79a03c7ca88f706ad9fb7b46831c1 before 8026e5163cca1d1db436c7bfb89ddea8b5e8c2cf; affected fdacd57c79b79a03c7ca88f706ad9fb7b46831c1 before b4597d5fd7d2f8cebfffd40dffb5e003cc78964c
Linux / Linuxaffected 5.15; unaffected 0 before 5.15; unaffected 6.18.34 through 6.18.*; unaffected 7.0.11 through 7.0.*; unaffected 7.1 through *

CWE

No CWE identifiers supplied.

References