From: Andrei Botila <andrei.botila@xxxxxxx> Standardize the way input lengths equal to 0 are handled in all skcipher algorithms. All the algorithms return 0 for input lengths equal to zero. Signed-off-by: Andrei Botila <andrei.botila@xxxxxxx> --- crypto/xts.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/crypto/xts.c b/crypto/xts.c index 3c3ed02c7663..7df68f52fddc 100644 --- a/crypto/xts.c +++ b/crypto/xts.c @@ -263,6 +263,9 @@ static int xts_encrypt(struct skcipher_request *req) struct skcipher_request *subreq = &rctx->subreq; int err; + if (!req->cryptlen) + return 0; + err = xts_init_crypt(req, xts_encrypt_done) ?: xts_xor_tweak_pre(req, true) ?: crypto_skcipher_encrypt(subreq) ?: @@ -280,6 +283,9 @@ static int xts_decrypt(struct skcipher_request *req) struct skcipher_request *subreq = &rctx->subreq; int err; + if (!req->cryptlen) + return 0; + err = xts_init_crypt(req, xts_decrypt_done) ?: xts_xor_tweak_pre(req, false) ?: crypto_skcipher_decrypt(subreq) ?: -- 2.17.1
