In the Linux kernel, the following vulnerability has been resolved:
ublk: make sure ubq->canceling is set when queue is frozen
Now ublk driver depends on ubq->canceling for deciding if the request
can be dispatched via uringcmd & iouringcmdcompleteintask().
Once ubq->canceling is set, the uringcmd can be done via ublkcancelcmd() and iouringcmddone().
So set ubq->canceling when queue is frozen, this way makes sure that the flag can be observed from ublkqueuerq() reliably, and avoids use-after-free on uring_cmd.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/22xxx/CVE-2025-22068.json",
"cna_assigner": "Linux"
}