SlowFog: Linux kernel vulnerability remote Root rumors exaggerated

Techub News reports that @im23pds tweeted that the rumor "All Ubuntu versions can be zero-click remotely rooted" regarding the Linux kernel vulnerability CVE-2026-98432 is exaggerated. This CVE is rated 9.8, caused by a use-after-free race condition during the IPv4 TCP handshake; Anthropic's research Claude demonstration shows remote root requires enabling MPTCP, which is disabled by default on Linux. As of 10:00 AM Beijing time on October 30, Debian 12/13 have been patched; Ubuntu 22.04/24.04/26.04 are being patched; RHEL 8/9/10 is postponed, with no official confirmation of widespread in-the-wild exploitation.