Two-decade IPv6 MTU bug can panic Linux with one sendmsg
Dead code in the IPv6 append path left a narrow MTU window that underflows and lets unprivileged raw-socket traffic trip skb_over_panic.
By oopsDead code in the IPv6 append path left a narrow MTU window that underflows and lets unprivileged raw-socket traffic trip skb_over_panic.
By oopsCVE-2026-80976 covers stale outer-packet metadata left on the inner packet after Segment Routing decapsulation, reachable by an unprivileged local user.
By kexecAlways creating exceptions for ICMP errors stops off-path attackers from probing connected UDP sockets after earlier defenses were bypassed.
By kexec