codel: remove sch->q.qlen check before qdisc_tree_reduce_backlog()
After making all ->qlen_notify() callbacks idempotent, now it is safe to
remove the check of qlen!=0 from both fq_codel_dequeue() and
codel_qdisc_dequeue().
Analysis and contextual insights are available on OpenCVE Cloud.
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-4193-1 | linux-6.1 security update |
Debian DLA |
DLA-4327-1 | linux security update |
EUVD |
EUVD-2025-13244 | In the Linux kernel, the following vulnerability has been resolved: codel: remove sch->q.qlen check before qdisc_tree_reduce_backlog() After making all ->qlen_notify() callbacks idempotent, now it is safe to remove the check of qlen!=0 from both fq_codel_dequeue() and codel_qdisc_dequeue(). |
Ubuntu USN |
USN-7594-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7594-2 | Linux kernel (Azure) vulnerabilities |
Ubuntu USN |
USN-7594-3 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7607-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7607-2 | Linux kernel (FIPS) vulnerabilities |
Ubuntu USN |
USN-7607-3 | Linux kernel (KVM) vulnerabilities |
Ubuntu USN |
USN-7608-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7608-2 | Linux kernel (FIPS) vulnerabilities |
Ubuntu USN |
USN-7608-3 | Linux kernel (Real-time) vulnerabilities |
Ubuntu USN |
USN-7608-4 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7608-5 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7608-6 | Linux kernel (Xilinx ZynqMP) vulnerabilities |
Ubuntu USN |
USN-7608-7 | Linux kernel (Azure) vulnerabilities |
Ubuntu USN |
USN-7609-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7609-2 | Linux kernel (Real-time) vulnerabilities |
Ubuntu USN |
USN-7609-3 | Linux kernel (IBM) vulnerabilities |
Ubuntu USN |
USN-7609-4 | Linux kernel (Azure) vulnerabilities |
Ubuntu USN |
USN-7609-5 | Linux kernel (Azure) vulnerabilities |
Ubuntu USN |
USN-7610-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7610-2 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7610-3 | Linux kernel (Low Latency) vulnerabilities |
Ubuntu USN |
USN-7627-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7627-2 | Linux kernel (FIPS) vulnerabilities |
Ubuntu USN |
USN-7628-1 | Linux kernel (Azure) vulnerabilities |
Ubuntu USN |
USN-7653-1 | Linux kernel (HWE) vulnerabilities |
Ubuntu USN |
USN-7655-1 | Linux kernel (Intel IoTG) vulnerabilities |
Ubuntu USN |
USN-7671-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7671-2 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7671-3 | Linux kernel (IoT) vulnerabilities |
Ubuntu USN |
USN-7686-1 | Linux kernel (Raspberry Pi) vulnerabilities |
Ubuntu USN |
USN-7712-1 | Linux kernel (Azure FIPS) vulnerabilities |
Ubuntu USN |
USN-7712-2 | Linux kernel (Azure) vulnerabilities |
Thu, 06 Nov 2025 21:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Debian
Debian debian Linux |
|
| Weaknesses | NVD-CWE-noinfo | |
| CPEs | cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:* |
|
| Vendors & Products |
Debian
Debian debian Linux |
|
| Metrics |
cvssV3_1
|
cvssV3_1
|
Mon, 03 Nov 2025 20:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
Mon, 03 Nov 2025 18:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
Thu, 28 Aug 2025 14:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
Wed, 18 Jun 2025 16:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-20 |
Mon, 05 May 2025 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
| |
| Metrics |
threat_severity
|
cvssV3_1
|
Fri, 02 May 2025 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In the Linux kernel, the following vulnerability has been resolved: codel: remove sch->q.qlen check before qdisc_tree_reduce_backlog() After making all ->qlen_notify() callbacks idempotent, now it is safe to remove the check of qlen!=0 from both fq_codel_dequeue() and codel_qdisc_dequeue(). | |
| Title | codel: remove sch->q.qlen check before qdisc_tree_reduce_backlog() | |
| References |
|
|
Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2026-05-11T21:15:21.992Z
Reserved: 2025-04-16T04:51:23.941Z
Link: CVE-2025-37798
No data.
Status : Analyzed
Published: 2025-05-02T15:15:48.657
Modified: 2025-11-06T20:49:48.530
Link: CVE-2025-37798
OpenCVE Enrichment
Updated: 2025-06-23T19:32:00Z
Debian DLA
EUVD
Ubuntu USN