[PATCH v11 09/18] eal: avoid format overflow when handling addresses

[Stephen Hemminger]

The largest possible string in this code 0xFFFFFFFFFFFFFFFF
which will overflow with only 15 character buffer.
Increase to 20.

Signed-off-by: Stephen Hemminger <stephen at networkplumber.org>
---
 lib/eal/common/eal_common_memory.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/eal/common/eal_common_memory.c b/lib/eal/common/eal_common_memory.c
index c62edf5e55..dccf9406c5 100644
--- a/lib/eal/common/eal_common_memory.c
+++ b/lib/eal/common/eal_common_memory.c
@@ -1153,8 +1153,9 @@ rte_eal_memory_init(void)
 #define EAL_MEMSEG_INFO_REQ		"/eal/memseg_info"
 #define EAL_ELEMENT_LIST_REQ		"/eal/mem_element_list"
 #define EAL_ELEMENT_INFO_REQ		"/eal/mem_element_info"
-#define ADDR_STR			15
 
+/* Address string is "0x" prefix + 16 hex digits + null */
+#define ADDR_STR			20
 
 /* Telemetry callback handler to return heap stats for requested heap id. */
 static int
-- 
2.51.0