[PATCH] event/octeontx: resolve possible integer overflow

[Hanumanth Pothula <hpothula@marvell.com>]

The last argument passed to ssovf_parsekv() is an
unsigned char*, but it is accessed as an integer.
This can lead to an integer overflow.

Hence, make ensure the argument is accessed as a char
and for better error handling use strtol instead of atoi.

Signed-off-by: Hanumanth Pothula <hpothula@marvell.com>
---
 drivers/event/octeontx/ssovf_evdev.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/event/octeontx/ssovf_evdev.c b/drivers/event/octeontx/ssovf_evdev.c
index 3a933b1db7..ccb447d33a 100644
--- a/drivers/event/octeontx/ssovf_evdev.c
+++ b/drivers/event/octeontx/ssovf_evdev.c
@@ -719,8 +719,16 @@ ssovf_close(struct rte_eventdev *dev)
 static int
 ssovf_parsekv(const char *key __rte_unused, const char *value, void *opaque)
 {
-	int *flag = opaque;
-	*flag = !!atoi(value);
+	uint8_t *flag = (uint8_t *)opaque;
+	char *end;
+
+	errno = 0;
+	*flag = (uint8_t)strtol(value, &end, 2);
+	if ((errno != 0) || (value == end)) {
+		ssovf_log_err("fail to get key val ret:%d err:%d", *flag, errno);
+		return -EINVAL;
+	}
+
 	return 0;
 }
 
-- 
2.25.1