VYPR
High severity7.8NVD Advisory· Published Jan 25, 2026· Updated Apr 27, 2026

CVE-2026-22999

CVE-2026-22999

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.

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Affected products

300

Patches

Vulnerability mechanics

References

7

News mentions

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