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Message-ID: <aB8tW2PYvX70HBPH@gondor.apana.org.au> Date: Sat, 10 May 2025 18:41:31 +0800 From: Herbert Xu <herbert@...dor.apana.org.au> To: Corentin Labbe <clabbe.montjoie@...il.com> Cc: Klaus Kudielka <klaus.kudielka@...il.com>, regressions@...ts.linux.dev, linux-kernel@...r.kernel.org, Linux Crypto Mailing List <linux-crypto@...r.kernel.org>, Boris Brezillon <bbrezillon@...nel.org>, EBALARD Arnaud <Arnaud.Ebalard@....gouv.fr>, Romain Perier <romain.perier@...il.com> Subject: [PATCH] crypto: marvell/cesa - Handle zero-length skcipher requests On Thu, May 08, 2025 at 03:43:07PM +0200, Corentin Labbe wrote: > > 6.14.4 boot log at http://kernel.montjoie.ovh/477911.log This patch may fix the skcipher ENOMEM errors, since they all seem to come from random test vectors with length 0. ---8<--- 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@...dor.apana.org.au> --- drivers/crypto/marvell/cesa/cipher.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/crypto/marvell/cesa/cipher.c b/drivers/crypto/marvell/cesa/cipher.c index 047f3758c1d1..cbf86968d8a2 100644 --- a/drivers/crypto/marvell/cesa/cipher.c +++ b/drivers/crypto/marvell/cesa/cipher.c @@ -456,6 +456,9 @@ 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; -- 2.39.5 -- Email: Herbert Xu <herbert@...dor.apana.org.au> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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