CVE-2025-21766

CVE-2025-21766 – Linux kernel: ipv4 PMTU update path uses RCU protection. __ip_rt_update_pmtu() must read the net structure under RCU to prevent reading a structure that can disappear. The connected documents confirm the root cause and indicate this has been resolved by introducing RCU protection...

CVE-2022-50266

The CVE-2022-50266 issue is in the Linux kernel kprobes path: kill_kprobe() incorrectly disarms a probe because KPROBE_FLAG_GONE is set before checking the probe’s enabled state, causing !kprobe_disabled(p) to evaluate to false and bypass necessary disarm handling. The fix adds the enabled-check ...

CVE-2026-31498

Linux kernel CVE-2026-31498 affects Bluetooth L2CAP by exposing memory leaks during reconfiguration (ERTM data structures) and a zero-valued max_pdu_size path that can lead to an infinite loop in l2cap_segment_sdu. Root cause: reconfiguration previously re-initialized ERTM state and NULL’d sdu wi...