tree ce7bbea315d489a23786fd662f64530ae068c413
parent 735177ca148af5049e9e98b38eaba0c769182655
author Ard Biesheuvel <ard.biesheuvel@linaro.org> 1566224545 +0300
committer Herbert Xu <herbert@gondor.apana.org.au> 1567152327 +1000

crypto: s5p - deal gracefully with bogus input sizes

The s5p skcipher driver returns -EINVAL for zero length inputs, which
deviates from the behavior of the generic ECB template, and causes fuzz
tests to fail. In cases where the input is not a multiple of the AES
block size (and the chaining mode is not CTR), it prints an error to
the kernel log, which is a thing we usually try to avoid in response
to situations that can be triggered by unprivileged users.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Kamil Konieczny <k.konieczny@partner.samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>