diff options
| author | Neels Hofmeyr <neels@hofmeyr.de> | 2018-12-05 23:30:31 +0100 |
|---|---|---|
| committer | Harald Welte <laforge@gnumonks.org> | 2018-12-10 17:06:30 +0000 |
| commit | 6adffb957349bc1ca75e49a20cbd05f06e62d668 (patch) | |
| tree | 6a68c105f3fc4016992237950da2b6ce4a0f094c | |
| parent | ea2a0ab041524bb651d488ea1eddda0cc3d9e895 (diff) | |
gsm48_mi_to_string(): do not read from zero length input buffer
Change-Id: I12cada7c2c5187146ca5a33d1ebfefb4cad65632
| -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: |