> Fix it by sg_next() on calculation of src/dst scatterlist.
Wording adjustment:
… by calling the function “sg_next” …
…
> +++ b/drivers/crypto/virtio/virtio_crypto_algs.c
> @@ -350,13 +350,18 @@ __virtio_crypto_skcipher_do_req(struct virtio_crypto_sym_request *vc_sym_req,
…
> src_nents = sg_nents_for_len(req->src, req->cryptlen);
> + if (src_nents < 0) {
> + pr_err("Invalid number of src SG.\n");
> + return src_nents;
> + }
> +
> dst_nents = sg_nents(req->dst);
…
I suggest to move the addition of such input parameter validation
to a separate update step.
Regards,
Markus
