commite2664ecbb2upstream. AES GCM input buffers for decryption contain AAD+CTEXT+TAG. Only decrypt the ciphertext, and use the tag for comparison. Fixes:36cf515b9b("crypto: ccp - Enable support for AES GCM on v5 CCPs") Cc: <stable@vger.kernel.org> Signed-off-by: Gary R Hook <gary.hook@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>