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crypto: marvell/cesa - Handle zero-length skcipher requests

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[ Upstream commit 8a4e047c6cc07676f637608a9dd675349b5de0a7 ]

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

Fixes: f63601fd61 ("crypto: marvell/cesa - add a new driver for Marvell's CESA")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Herbert Xu 2025-05-10 18:41:31 +08:00 • committed by Greg Kroah-Hartman
commit 32d3e8049a
1 changed files with 3 additions and 0 deletions
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3
drivers/crypto/marvell/cipher.c
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@ -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;