crypto/qat: fix null auth algo overwrite

If auth algorithm is RTE_CRYPTO_AUTH_NULL and digest_length is 0
in the xform and digest pointer is set in the op, then
the PMD may overwrite memory at the digest pointer.
With this patch the memory is not overwritten.

Fixes: db0e952a5c ("crypto/qat: add NULL capability")
Cc: stable@dpdk.org

Signed-off-by: Fiona Trahe <fiona.trahe@intel.com>
Acked-by: Radu Nicolau <radu.nicolau@intel.com>
This commit is contained in:
Fiona Trahe 2018-01-25 17:19:14 +00:00 committed by Pablo de Lara
parent 513942f07c
commit 4e0955bddb

View File

@ -1342,7 +1342,9 @@ qat_write_hw_desc_entry(struct rte_crypto_op *op, uint8_t *out_msg,
}
min_ofs = auth_ofs;
auth_param->auth_res_addr = op->sym->auth.digest.phys_addr;
if (likely(ctx->qat_hash_alg != ICP_QAT_HW_AUTH_ALGO_NULL))
auth_param->auth_res_addr =
op->sym->auth.digest.phys_addr;
}