CVE-2025-37932

MEDIUM EPSS 7.1%
Published May 20, 20251y ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published May 20, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
7.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 9

VendorProductVersionRange
linuxlinux_kernel* <5.4.294
linuxlinux_kernel*≥5.5  –  <5.10.241
linuxlinux_kernel*≥5.11  –  <5.15.190
linuxlinux_kernel*≥5.16  –  <6.1.138
linuxlinux_kernel*≥6.2  –  <6.6.90
linuxlinux_kernel*≥6.7  –  <6.12.28
linuxlinux_kernel*≥6.13  –  <6.14.6
linuxlinux_kernel6.15any
debiandebian_linux11.0any

References 10

  • git.kernel.org https://git.kernel.org/stable/c/0a188c0e197383683fd093ab1ea6ce9a5869a6ea
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/32ae12ce6a9f6bace186ca7335220ff59b6cc3cd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5ba8b837b522d7051ef81bacf3d95383ff8edce5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/73cf6af13153d62f9b76eff422eea79dbc70f15e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/967955c9e57f8eebfccc298037d4aaf3d42bc1c9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a61f1b5921761fbaf166231418bc1db301e5bf59
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bbbf5e0f87078b715e7a665d662a2c0e77f044ae
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e6b45f4de763b00dc1c55e685e2dd1aaf525d3c1
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html
    Third Party Advisory
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
    Third Party Advisory

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0a188c0e197383683fd093ab1ea6ce9a5869a6ea
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/32ae12ce6a9f6bace186ca7335220ff59b6cc3cd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5ba8b837b522d7051ef81bacf3d95383ff8edce5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/73cf6af13153d62f9b76eff422eea79dbc70f15e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/967955c9e57f8eebfccc298037d4aaf3d42bc1c9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a61f1b5921761fbaf166231418bc1db301e5bf59
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bbbf5e0f87078b715e7a665d662a2c0e77f044ae
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e6b45f4de763b00dc1c55e685e2dd1aaf525d3c1
    Patch