CVE-2026-23340

CVE-2026-23340 affects the Linux kernel net sched subsystem where qdisc_reset_all_tx_gt() can race with the lockless dequeue path, potentially causing use-after-free of skbs when the number of real TX queues changes (e.g., via ethtool -L on virtio-net). The fix is to serialize qdisc_reset() again...