From 6adffb957349bc1ca75e49a20cbd05f06e62d668 Mon Sep 17 00:00:00 2001 From: Neels Hofmeyr Date: Wed, 5 Dec 2018 23:30:31 +0100 Subject: gsm48_mi_to_string(): do not read from zero length input buffer Change-Id: I12cada7c2c5187146ca5a33d1ebfefb4cad65632 --- src/gsm/gsm48.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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: -- cgit v1.2.3