This patch adds checking for service core index validity when parsing
service corelist.

Fixes: 7dbd7a6413ef ("service: add -S corelist option")
Cc: stable@dpdk.org

Signed-off-by: Chengwen Feng <redacted>
Signed-off-by: Min Hu (Connor) <redacted>
---
 lib/eal/common/eal_common_options.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/eal/common/eal_common_options.c b/lib/eal/common/eal_common_options.c
index 66f9114..97ab6e0 100644
--- a/lib/eal/common/eal_common_options.c
+++ b/lib/eal/common/eal_common_options.c

@@ -758,10 +758,10 @@ static int
 eal_parse_service_corelist(const char *corelist)
 {
 	struct rte_config *cfg = rte_eal_get_configuration();
-	int i, idx = 0;
+	int i;
 	unsigned count = 0;
 	char *end = NULL;
-	int min, max;
+	uint32_t min, max, idx;
 	uint32_t taken_lcore_count = 0;
 
 	if (corelist == NULL)

@@ -785,6 +785,8 @@ eal_parse_service_corelist(const char *corelist)
 		idx = strtoul(corelist, &end, 10);
 		if (errno || end == NULL)
 			return -1;
+		if (idx >= RTE_MAX_LCORE)
+			return -1;
 		while (isblank(*end))
 			end++;
 		if (*end == '-') {