cve 2026 64572

The cve 2026 64572 tag on WindowsForum.com covers discussions about a specific Linux kernel vulnerability, CVE-2026-64572, which is a use-after-free flaw in the IPv4 routing table code. The vulnerability arises from a race condition in the fib_table_insert() function in net/ipv4/fib_trie.c, where a route insertion can be rejected after the new route has become visible to concurrent lookups. The tag includes practical guidance for Linux administrators, such as identifying affected kernel versions (6.6.148, 6.12.101, 6.18.42, 7.1.6, and 7.2-rc4) and checking for distribution backports. While the tag focuses on Linux, it is relevant to WindowsForum.com users interested in security vulnerabilities and patch management in mixed IT environments.