[dpdk-dev] [PATCH 2/2] net/ena: initialize memory in the allocation macros

[Michal Krawczyk]

From: Alexander Matushevsky <matua at amazon.com>

Uninitialized memory could cause memory corruption, by indicating
completion of the invalid mbuf.

Fixes: 3d3edc265fc8 ("net/ena: make coherent memory allocation NUMA-aware")
Signed-off-by: Alexander Matushevsky <matua at amazon.com>
Signed-off-by: Michal Krawczyk <mk at semihalf.com>
---
 drivers/net/ena/base/ena_plat_dpdk.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ena/base/ena_plat_dpdk.h b/drivers/net/ena/base/ena_plat_dpdk.h
index 7eaebf4..71a8c1e 100644
--- a/drivers/net/ena/base/ena_plat_dpdk.h
+++ b/drivers/net/ena/base/ena_plat_dpdk.h
@@ -207,6 +207,7 @@ typedef uint64_t dma_addr_t;
 		snprintf(z_name, sizeof(z_name),			\
 				"ena_alloc_%d", ena_alloc_cnt++);	\
 		mz = rte_memzone_reserve(z_name, size, node, 0); \
+		memset(mz->addr, 0, size);				\
 		virt = mz->addr;					\
 		phys = mz->phys_addr;					\
 	} while (0)
@@ -219,6 +220,7 @@ typedef uint64_t dma_addr_t;
 		snprintf(z_name, sizeof(z_name),			\
 				"ena_alloc_%d", ena_alloc_cnt++);	\
 		mz = rte_memzone_reserve(z_name, size, node, 0); \
+		memset(mz->addr, 0, size);				\
 		virt = mz->addr;					\
 	} while (0)
 
-- 
2.7.4