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Commit 32d3e804 authored by Herbert Xu's avatar Herbert Xu Committed by Greg Kroah-Hartman
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crypto: marvell/cesa - Handle zero-length skcipher requests 



[ Upstream commit 8a4e047c6cc07676f637608a9dd675349b5de0a7 ]

Do not access random memory for zero-length skcipher requests.
Just return 0.

Fixes: f63601fd ("crypto: marvell/cesa - add a new driver for Marvell's CESA")
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent b48773f8

drivers/crypto/marvell/cipher.c

+3 −0
Original line number Diff line number Diff line
@@ -447,6 +447,9 @@ static int mv_cesa_skcipher_queue_req(struct skcipher_request *req, 
	struct mv_cesa_skcipher_req *creq = skcipher_request_ctx(req);

	struct mv_cesa_engine *engine;



	if (!req->cryptlen)

		return 0;



	ret = mv_cesa_skcipher_req_init(req, tmpl);

	if (ret)

		return ret;