CVE-2026-23105 (GCVE-0-2026-23105)
Vulnerability from cvelistv5 – Published: 2026-02-04 16:08 – Updated: 2026-02-06 16:33
VLAI?
Title
net/sched: qfq: Use cl_is_active to determine whether class is active in qfq_rm_from_ag
Summary
In the Linux kernel, the following vulnerability has been resolved:
net/sched: qfq: Use cl_is_active to determine whether class is active in qfq_rm_from_ag
This is more of a preventive patch to make the code more consistent and
to prevent possible exploits that employ child qlen manipulations on qfq.
use cl_is_active instead of relying on the child qdisc's qlen to determine
class activation.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Linux | Linux |
Affected:
462dbc9101acd38e92eda93c0726857517a24bbd , < fac2c67bb2bb732eae4283e45fc338af7e08c254
(git)
Affected: 462dbc9101acd38e92eda93c0726857517a24bbd , < b8c24cf5268fb3bfb8d16324c3dbb985f698c835 (git) Affected: 462dbc9101acd38e92eda93c0726857517a24bbd , < f27047abf7cac1b6f90c3ad60de21ef9f717c26d (git) Affected: 462dbc9101acd38e92eda93c0726857517a24bbd , < 93b8635974fb050c43d07e35e5edfe6e685ca28a (git) Affected: 462dbc9101acd38e92eda93c0726857517a24bbd , < abd9fc26ea577561a5ef6241a1b058755ffdad0c (git) Affected: 462dbc9101acd38e92eda93c0726857517a24bbd , < 77f1afd0bb4d5da95236f6114e6d0dfcde187ff6 (git) Affected: 462dbc9101acd38e92eda93c0726857517a24bbd , < d837fbee92453fbb829f950c8e7cf76207d73f33 (git) |
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{
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{
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{
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"status": "unaffected",
"version": "6.1.162",
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},
{
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"status": "unaffected",
"version": "6.6.122",
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},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.68",
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{
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"status": "unaffected",
"version": "6.18.8",
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{
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],
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: qfq: Use cl_is_active to determine whether class is active in qfq_rm_from_ag\n\nThis is more of a preventive patch to make the code more consistent and\nto prevent possible exploits that employ child qlen manipulations on qfq.\nuse cl_is_active instead of relying on the child qdisc\u0027s qlen to determine\nclass activation."
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"providerMetadata": {
"dateUpdated": "2026-02-06T16:33:28.539Z",
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],
"title": "net/sched: qfq: Use cl_is_active to determine whether class is active in qfq_rm_from_ag",
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"cveId": "CVE-2026-23105",
"datePublished": "2026-02-04T16:08:26.376Z",
"dateReserved": "2026-01-13T15:37:45.966Z",
"dateUpdated": "2026-02-06T16:33:28.539Z",
"state": "PUBLISHED"
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}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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