CVE-2025-37932

MEDIUM

MEDIUM Priority: 0.01 BB Relevance: 36/100

Published: 2025-05-20 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

Low Complexity No Interaction

CVSS Vector Breakdown

AV: Local

AC: Low

PR: Low

UI: None

S: Unchanged

C: None

I: None

A: High

Description

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.

Affected Software (12)

Vendor	Product	Version
Linux	Linux	959466588aa7f84ccf79ae36a1d89542eaf9aaec < e6b45f4de763b00dc1c55e685e2dd1aaf525d3c1
Linux	Linux	959466588aa7f84ccf79ae36a1d89542eaf9aaec < 32ae12ce6a9f6bace186ca7335220ff59b6cc3cd
Linux	Linux	959466588aa7f84ccf79ae36a1d89542eaf9aaec < 967955c9e57f8eebfccc298037d4aaf3d42bc1c9
Linux	Linux	959466588aa7f84ccf79ae36a1d89542eaf9aaec < 73cf6af13153d62f9b76eff422eea79dbc70f15e
Linux	Linux	959466588aa7f84ccf79ae36a1d89542eaf9aaec < bbbf5e0f87078b715e7a665d662a2c0e77f044ae
Linux	Linux	959466588aa7f84ccf79ae36a1d89542eaf9aaec < 0a188c0e197383683fd093ab1ea6ce9a5869a6ea
Linux	Linux	959466588aa7f84ccf79ae36a1d89542eaf9aaec < a61f1b5921761fbaf166231418bc1db301e5bf59
Linux	Linux	959466588aa7f84ccf79ae36a1d89542eaf9aaec < 5ba8b837b522d7051ef81bacf3d95383ff8edce5
Linux	Linux	4.14
debian	debian_linux	11.0
linux	linux_kernel	< 5.4.294
linux	linux_kernel	6.15