CVE-2026-74696

CVE-2026-74696 is a Linux kernel vulnerability in TCP Fast Open (TFO) max_qlen accounting during SO_REUSEPORT listener migration . When a listener is closed and its pending TFO children are handed to a surviving listener, the fastopenq.qlen counter is charged on the old listener but uncharged on ...

PT-2026-79701

In the Linux kernel, the following vulnerability has been resolved: tcp: fix TFO max qlen accounting across reuseport migration A listener's TCP FASTOPEN max qlen stops being accurate and lets through far more pending Fast Open requests than it was configured for. This only shows up with SO...