diff --git a/lib/sdp.c b/lib/sdp.c
index b64245f668d3..e260a5a9663e 100644
--- a/lib/sdp.c
+++ b/lib/sdp.c
@@ -582,6 +582,8 @@ int sdp_attr_add(sdp_record_t *rec, uint16_t attr, sdp_data_t *d)
if (p)
return -1;
+ if (!d)
+ return -1;
d->attrId = attr;
rec->attrlist = sdp_list_insert_sorted(rec->attrlist, d, sdp_attrid_comp_func);
@@ -964,6 +966,8 @@ static void data_seq_free(sdp_data_t *seq)
void sdp_data_free(sdp_data_t *d)
{
+ if (!d)
+ return;
switch (d->dtd) {
case SDP_SEQ8:
case SDP_SEQ16:
--
2.45.2
