In the Linux kernel, the following vulnerability has been resolved:
powerpc/pseries: papr-phy-attest - validate cmd.length, plug mem leak
In paprphyattestcreatehandle(), the params->cmd.length is not validated before use, which can result in a buffer overlow. Check it and return -EINVAL if it is either 0 or exceeds sizeof(params->cmd).
Also, params is freed on the success path but not error. Free it on errors after memory allocation. And free it on negative fd.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80571.json",
"cna_assigner": "Linux"
}