CVE-2025-37932

In the Linux kernel, the following vulnerability has been resolved: sch_htb: make htb_qlen_notify() idempotent htb_qlen_notify() always deactivates the HTB class and in fact could trigger a warning if it is already deactivated. Therefore, it is not idempotent and not friendly to its callers, like fq_codel_dequeue(). Let's make it idempotent to ease qdisc_tree_reduce_backlog() callers' life.

• linux linux kernel (< 5.4.294) • linux linux kernel (>= 5.5 < 5.10.241) • linux linux kernel (>= 5.11 < 5.15.190) • linux linux kernel (>= 5.16 < 6.1.138) • linux linux kernel (>= 6.2 < 6.6.90) • linux linux kernel (>= 6.7 < 6.12.28) • linux linux kernel (>= 6.13 < 6.14.6) • linux linux kernel 6.15 • debian debian linux 11.0