In the Linux kernel, the following vulnerability has been resolved:
net/sched: schqfq: do not free existing class in qfqchange_class()
Fixes qfqchangeclass() error case.
cl->qdisc and cl should only be freed if a new class and qdisc were allocated, or we risk various UAF.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/22xxx/CVE-2026-22999.json",
"cna_assigner": "Linux"
}