CVE-2026-80571
Description
AI Translation Available
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.
https://git.kernel.org/stable/c/5b17f3f34391372faf03e79d947e0c50ab6dd258
https://git.kernel.org/stable/c/828a8d1a9107aec6353d896882df8383accf7e80
https://git.kernel.org/stable/c/ed98ce338f9a65c90cb930b088f1eb36de7181af