In the Linux kernel, the following vulnerability has been resolved:
bpf: Zero queue and stack outputs on lock failure
Queue and stack pop/peek helpers accept an uninitialized output buffer because the verifier expects the helper to initialize it. The empty-map error path clears the buffer, but a failed lock acquisition returns -EBUSY without writing it.
Clear the output before returning -EBUSY so BPF programs cannot observe uninitialized stack contents after a failed helper call.
{
"cna_assigner": "Linux",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92520.json"
}