VulnerabilityModified
CVE-2026-22999
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,…
MEDIUM 5.5EPSS 0.21%
Does this matter?
Lower severity and a low EPSS score (0.21%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.21% probability · 11th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/0a234660dc70ce45d771cbc76b20d925b73ec160Patch
- https://git.kernel.org/stable/c/2a64fb9b47afffeb5dbab5fd3a518e1436dcc90ePatch
- https://git.kernel.org/stable/c/362e269bb03f7076ba9990e518aeddb898232e50Patch
- https://git.kernel.org/stable/c/3879cffd9d07aa0377c4b8835c4f64b4fb24ac78Patch
- https://git.kernel.org/stable/c/cff6cd703f41d8071995956142729e4bba160363Patch
- https://git.kernel.org/stable/c/e9d8f11652fa08c647bf7bba7dd8163241a332cdPatch
- https://git.kernel.org/stable/c/f06f7635499bc806cbe2bbc8805c7cef8b1edddfPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.