On Fri, Mar 26, 2021 at 02:13:32PM +0800, Meng Yu wrote: > We should ensure key is not empty before we set key. > > Signed-off-by: Meng Yu <yumeng18@xxxxxxxxxx> > --- > drivers/crypto/hisilicon/hpre/hpre_crypto.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/drivers/crypto/hisilicon/hpre/hpre_crypto.c b/drivers/crypto/hisilicon/hpre/hpre_crypto.c > index 53068d2..7cf7d80 100644 > --- a/drivers/crypto/hisilicon/hpre/hpre_crypto.c > +++ b/drivers/crypto/hisilicon/hpre/hpre_crypto.c > @@ -1093,6 +1093,9 @@ static int hpre_rsa_setpubkey(struct crypto_akcipher *tfm, const void *key, > struct hpre_ctx *ctx = akcipher_tfm_ctx(tfm); > int ret; > > + if (!key || !keylen) > + return -EINVAL; > + > ret = crypto_akcipher_set_pub_key(ctx->rsa.soft_tfm, key, keylen); Does this fix a real bug? Wouldn't the soft fallback setkey catch this anyhow? Thanks, -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
