CVE-2025-37932

MediumCVSS 5.5/10Last modified Nov 5, 2026

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.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected software

VendorProductVersions
LinuxLinux>= 959466588aa7f84ccf79ae36a1d89542eaf9aaec, < e6b45f4de763b00dc1c55e685e2dd1aaf525d3c1; >= 959466588aa7f84ccf79ae36a1d89542eaf9aaec, < 32ae12ce6a9f6bace186ca7335220ff59b6cc3cd; >= 959466588aa7f84ccf79ae36a1d89542eaf9aaec, < 967955c9e57f8eebfccc298037d4aaf3d42bc1c9; >= 959466588aa7f84ccf79ae36a1d89542eaf9aaec, < 73cf6af13153d62f9b76eff422eea79dbc70f15e; >= 959466588aa7f84ccf79ae36a1d89542eaf9aaec, < bbbf5e0f87078b715e7a665d662a2c0e77f044ae; >= 959466588aa7f84ccf79ae36a1d89542eaf9aaec, < 0a188c0e197383683fd093ab1ea6ce9a5869a6ea; >= 959466588aa7f84ccf79ae36a1d89542eaf9aaec, < a61f1b5921761fbaf166231418bc1db301e5bf59; >= 959466588aa7f84ccf79ae36a1d89542eaf9aaec, < 5ba8b837b522d7051ef81bacf3d95383ff8edce5
LinuxLinux4.14

References

Timeline

Published
May 20, 2025
Last modified
Nov 5, 2026
NVD status
Analyzed

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CVE-2025-37932: Medium severity, CVSS 5.5 | Vulnix