diff options
| -rw-r--r-- | src/gsm/gsm48.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/gsm/gsm48.c b/src/gsm/gsm48.c index af3e14c5..190622ff 100644 --- a/src/gsm/gsm48.c +++ b/src/gsm/gsm48.c @@ -655,7 +655,7 @@ int gsm48_mi_to_string(char *string, const int str_len, const uint8_t *mi, uint8_t mi_type; uint32_t tmsi; - mi_type = mi[0] & GSM_MI_TYPE_MASK; + mi_type = (mi && mi_len) ? (mi[0] & GSM_MI_TYPE_MASK) : GSM_MI_TYPE_NONE; switch (mi_type) { case GSM_MI_TYPE_TMSI: |