[dpdk-dev] [dpdk-dev v4] app: fix buffer overrun

[Przemyslaw Zegan]

This patch fixes a possible buffer overrun problem in crypto perf test.
Previously when user configured aad size is over 12 bytes the copy of template aad will cause a buffer overrun.
The problem is fixed by only copy up to 12 bytes of aad template.

Fixes: 8a5b494a7f99 ("app/test-crypto-perf: add AEAD parameters")
Cc: pablo.de.lara.guarch at intel.com

Signed-off-by: Przemyslaw Zegan <przemyslawx.zegan at intel.com>
Acked-by: Fan Zhang <roy.fan.zhang at intel.com>
---
v4:
- rebased on top of latest master
v3:
- replaced hardcoded values by sizeof(aad)
v2:
- changed to correct fixed line.

 app/test-crypto-perf/cperf_test_vectors.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/app/test-crypto-perf/cperf_test_vectors.c b/app/test-crypto-perf/cperf_test_vectors.c
index 4bba405961..314e2b7710 100644
--- a/app/test-crypto-perf/cperf_test_vectors.c
+++ b/app/test-crypto-perf/cperf_test_vectors.c
@@ -590,6 +590,10 @@ cperf_test_vector_get_dummy(struct cperf_options *options)
 				rte_free(t_vec);
 				return NULL;
 			}
+
+			if(options->aead_aad_sz > sizeof(aad))
+				options->aead_aad_sz = sizeof(aad);
+
 			memcpy(t_vec->aad.data, aad, options->aead_aad_sz);
 			t_vec->aad.phys_addr = rte_malloc_virt2iova(t_vec->aad.data);
 			t_vec->aad.length = options->aead_aad_sz;
-- 
2.30.2