CVEvulnerability

CVE-2026-22999

5.5 MEDIUM Published 2026-01-25 Modified 2026-10-19 Official page ↗
Status
Modified
Published
2026-01-25
Last modified
2026-10-19
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-416

Description

In the Linux kernel, the following vulnerability has been resolved: net/sched: sch_qfq: do not free existing class in qfq_change_class() Fixes qfq_change_class() error case. cl->qdisc and cl should only be freed if a new class and qdisc were allocated, or we risk various UAF.

Affected configurations

• linux linux kernel (>= 3.8 < 5.10.249) • linux linux kernel (>= 5.11 < 5.15.199) • linux linux kernel (>= 5.16 < 6.1.162) • linux linux kernel (>= 6.2 < 6.6.122) • linux linux kernel (>= 6.7 < 6.12.67) • linux linux kernel (>= 6.13 < 6.18.7) • linux linux kernel 6.19

Related

Weakness · CWE (1)

References