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* [PATCH 1/2] crypto/qat: fix null auth algo issue
@ 2018-01-25 17:19 Fiona Trahe
  2018-01-25 17:19 ` [PATCH 2/2] test: improve test validation in NULL AUTH case Fiona Trahe
  2018-01-25 17:36 ` [PATCH 1/2] crypto/qat: fix null auth algo issue Nicolau, Radu
  0 siblings, 2 replies; 6+ messages in thread
From: Fiona Trahe @ 2018-01-25 17:19 UTC (permalink / raw)
  To: dev; +Cc: radu.nicolau, pablo.de.lara.guarch, fiona.trahe

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: db0e952a5c01 ("crypto/qat: add NULL capability")

Signed-off-by: Fiona Trahe <fiona.trahe@intel.com>
---
 drivers/crypto/qat/qat_crypto.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/crypto/qat/qat_crypto.c b/drivers/crypto/qat/qat_crypto.c
index cff709a..fdc6d3b 100644
--- a/drivers/crypto/qat/qat_crypto.c
+++ b/drivers/crypto/qat/qat_crypto.c
@@ -1338,7 +1338,9 @@ 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;
 
 	}
 
-- 
2.7.4

^ permalink raw reply related	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2018-01-29 15:58 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-01-25 17:19 [PATCH 1/2] crypto/qat: fix null auth algo issue Fiona Trahe
2018-01-25 17:19 ` [PATCH 2/2] test: improve test validation in NULL AUTH case Fiona Trahe
2018-01-29 11:52   ` De Lara Guarch, Pablo
2018-01-29 15:58     ` [dpdk-stable] " De Lara Guarch, Pablo
2018-01-25 17:36 ` [PATCH 1/2] crypto/qat: fix null auth algo issue Nicolau, Radu
2018-01-29 15:58   ` De Lara Guarch, Pablo

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