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* [dpdk-dev] [PATCH v1] net/ice/base: check memory pointer before copying
@ 2020-03-31  6:50 Haiyue Wang
  2020-04-01  3:30 ` Ye Xiaolong
  0 siblings, 1 reply; 2+ messages in thread
From: Haiyue Wang @ 2020-03-31  6:50 UTC (permalink / raw)
  To: dev, xiaolong.ye, qi.z.zhang, qiming.yang, beilei.xing
  Cc: Haiyue Wang, stable

The ice_memdup doesn't check the new allocated memory pointer, it calls
the rte_memcpy directly. It should check it.

Fixes: 5f0978e96220 ("net/ice/base: add OS specific implementation")
Cc: stable@dpdk.org

Signed-off-by: Haiyue Wang <haiyue.wang@intel.com>
---
 drivers/net/ice/base/ice_osdep.h | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ice/base/ice_osdep.h b/drivers/net/ice/base/ice_osdep.h
index a4a2994c7..88c2a65be 100644
--- a/drivers/net/ice/base/ice_osdep.h
+++ b/drivers/net/ice/base/ice_osdep.h
@@ -24,6 +24,8 @@
 #include <rte_random.h>
 #include <rte_io.h>
 
+#include "ice_alloc.h"
+
 #include "../ice_logs.h"
 
 #ifndef __INTEL_NET_BASE_OSDEP__
@@ -193,7 +195,6 @@ struct ice_virt_mem {
 
 #define ice_memset(a, b, c, d) memset((a), (b), (c))
 #define ice_memcpy(a, b, c, d) rte_memcpy((a), (b), (c))
-#define ice_memdup(a, b, c, d) rte_memcpy(ice_malloc(a, c), b, c)
 
 /* SW spinlock */
 struct ice_lock {
@@ -225,6 +226,19 @@ ice_destroy_lock(__attribute__((unused)) struct ice_lock *sp)
 
 struct ice_hw;
 
+static __rte_always_inline void *
+ice_memdup(__rte_unused struct ice_hw *hw, const void *src, size_t size,
+	   __rte_unused enum ice_memcpy_type dir)
+{
+	void *p;
+
+	p = ice_malloc(hw, size);
+	if (p)
+		rte_memcpy(p, src, size);
+
+	return p;
+}
+
 static inline void *
 ice_alloc_dma_mem(__attribute__((unused)) struct ice_hw *hw,
 		  struct ice_dma_mem *mem, u64 size)
-- 
2.26.0


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