crypto: crypto4xx - block ciphers should only accept complete blocks
commit 0f7a81374060828280fcfdfbaa162cb559017f9f upstream. The hardware automatically zero pads incomplete block ciphers blocks without raising any errors. This is a screw-up. This was noticed by CONFIG_CRYPTO_MANAGER_EXTRA_TESTS tests that sent a incomplete blocks and expect them to fail. This fixes: cbc-aes-ppc4xx encryption unexpectedly succeeded on test vector "random: len=2409 klen=32"; expected_error=-22, cfg="random: may_sleep use_digest src_divs=[96.90%@+2295, 2.34%@+4066, 0.32%@alignmask+12, 0.34%@+4087, 0.9%@alignmask+1787, 0.1%@+3767] iv_offset=6" ecb-aes-ppc4xx encryption unexpectedly succeeded on test vector "random: len=1011 klen=32"; expected_error=-22, cfg="random: may_sleep use_digest src_divs=[100.0%@alignmask+20] dst_divs=[3.12%@+3001, 96.88%@+4070]" Cc: Eric Biggers <ebiggers@kernel.org> Cc: stable@vger.kernel.org [4.19, 5.0 and 5.1] Signed-off-by: NChristian Lamparter <chunkeey@gmail.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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