CVE-2026-64079

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A NULL dereference occurs in the netfilter x tables component. The arp/ip(6)t register table() function adds a table to the per-netns list via xt register table() before allocating the per-netns hook ops copy using kmemdup array(). This creates a window where the table is visible in the list with the ops variable set to NULL. If a pernet exit occurs concurrently, the pre exit callback identifies the table through xt find table() and passes the NULL ops pointer to the nf unregister net hooks() function, leading to a general protection fault.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.