Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries: papr-phy-attest - validate cmd.length, plug mem leak In papr_phy_attest_create_handle(), 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.
References
- https://git.kernel.org/stable/c/5b17f3f34391372faf03e79d947e0c50ab6dd258
- https://git.kernel.org/stable/c/828a8d1a9107aec6353d896882df8383accf7e80
- https://git.kernel.org/stable/c/ed98ce338f9a65c90cb930b088f1eb36de7181af
FAQ
What is CVE-2026-80571?
CVE-2026-80571 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries: papr-phy-attest - validate cmd.length, plug mem leak In papr_phy_attest_create_handle(), the params->cmd.length i...
How severe is CVE-2026-80571?
CVSS scoring is not yet available for CVE-2026-80571. Check NVD for updates.
Is there a patch for CVE-2026-80571?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.