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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2025-05-10 18:41:31 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-06-19 15:28:02 +0200 |
| commit | 5e9666ac8b94c978690f937d59170c5237bd2c45 (patch) | |
| tree | 095afbcb40fa8bd5b921b2050250c815e46c9c45 /drivers/crypto | |
| parent | 62af7780054fa2fe5c7aa012dfd5d37e76f4d9dc (diff) | |
| download | linux-5e9666ac8b94c978690f937d59170c5237bd2c45.tar.gz linux-5e9666ac8b94c978690f937d59170c5237bd2c45.tar.bz2 linux-5e9666ac8b94c978690f937d59170c5237bd2c45.zip | |
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: f63601fd616a ("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>
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/marvell/cesa/cipher.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/crypto/marvell/cesa/cipher.c b/drivers/crypto/marvell/cesa/cipher.c index 0f37dfd42d85..3876e3ce822f 100644 --- a/drivers/crypto/marvell/cesa/cipher.c +++ b/drivers/crypto/marvell/cesa/cipher.c @@ -459,6 +459,9 @@ 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; |