CAREFUL โผ๏ธ Linux and DGX Spark users: turning off MPTCP isn't enough for CVE-2026-98432 (CVSS 9.8).
The bug is in the plain IPv4 TCP handshake on every unpatched kernel since 4.4. Ubuntu hasn't shipped a fix, and none is in progress for the Spark's kernel yet.
What to do ๐