In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: hcisync: hcicmdsyncqueue_once() return -EEXIST if exists
hcicmdsyncqueueonce() needs to indicate whether a queue item was added, so caller can know if callbacks are called, so it can avoid leaking resources.
Change the function to return -EEXIST if queue item already exists.
Modify all callsites to handle that.
{
"cna_assigner": "Linux",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43022.json"
}