- fixed position range check in MmsValue_getOctetStringOctet

4 years ago · 1f2da92626
parent ec1678e88a
commit 1f2da92626
1 changed files with 1 additions and 1 deletions
--- a/src/mms/iso_mms/common/mms_value.c
+++ b/src/mms/iso_mms/common/mms_value.c
@ -1464,7 +1464,7 @@ MmsValue_getOctetStringOctet(MmsValue* self, int octetPos)
 {
    uint8_t octet = 0x00; /* default value, for out of range request */

-    if (octetPos < self->value.octetString.size) {
+    if ((octetPos >= 0) && (octetPos < self->value.octetString.size)) {
        octet = self->value.octetString.buf[octetPos];
    }