Don't access rfcomm_hdr struct and ignore if frame is too short.
---
emulator/bthost.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/emulator/bthost.c b/emulator/bthost.c
index f92b479..2cd79bc 100644
--- a/emulator/bthost.c
+++ b/emulator/bthost.c
@@ -1604,7 +1604,12 @@ static void rfcomm_disc_recv(struct bthost *bthost, struct btconn *conn,
uint16_t len)
{
const struct rfcomm_cmd *hdr = data;
- uint8_t dlci = RFCOMM_GET_DLCI(hdr->address);
+ uint8_t dlci;
+
+ if (len < sizeof(*hdr))
+ return;
+
+ dlci = RFCOMM_GET_DLCI(hdr->address);
rfcomm_ua_send(bthost, conn, l2conn, 0, dlci);
}
--
1.8.3.1
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