An attacker sending tcp, il, rudp, rudp, or gre packets with a length less than the header size would trigger a kernel panic.Referenceshttps://git.9front.org/plan9front/9front/7838d68969549f938cc8e80c0c2b4218cb12805c/commit.htmlhttps://git.9front.org/plan9front/9front/f86917b75e9562f90545b7e484dbdcd748236952/commit.htmlhttps://git.9front.org/plan9front/9front/70c97c334171c715df82774d1a47638abaca2db4/commit.html