CVE-2026-80571

high

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/ed98ce338f9a65c90cb930b088f1eb36de7181af

https://git.kernel.org/stable/c/828a8d1a9107aec6353d896882df8383accf7e80

https://git.kernel.org/stable/c/5b17f3f34391372faf03e79d947e0c50ab6dd258

Details

Source: Mitre, NVD

Published: 2026-08-26

Updated: 2026-08-26

Risk Information

CVSS v2

Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 7.1

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Severity: High

EPSS

EPSS: 0.00154