CVE-2026-23105

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.

CVSS 3.1

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

EPSS

0.1% chance of exploitation in the next 30 days; higher than 3% of CVEs (scores of 2026-10-25)

CWE

CWE-20

Published

2026-02-04

Modified

2026-10-19

Record from

the NVD, synced 2026-10-21

Affected

• linux:linux_kernel

References

• https://git.kernel.org/stable/c/77f1afd0bb4d5da95236f6114e6d0dfcde187ff6
• https://git.kernel.org/stable/c/93b8635974fb050c43d07e35e5edfe6e685ca28a
• https://git.kernel.org/stable/c/abd9fc26ea577561a5ef6241a1b058755ffdad0c
• https://git.kernel.org/stable/c/b8c24cf5268fb3bfb8d16324c3dbb985f698c835
• https://git.kernel.org/stable/c/d837fbee92453fbb829f950c8e7cf76207d73f33

Check your stackJSON