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| author | Pau Espin Pedrol <pespin@sysmocom.de> | 2022-10-28 14:01:00 +0200 |
|---|---|---|
| committer | Pau Espin Pedrol <pespin@sysmocom.de> | 2022-10-29 01:06:27 +0200 |
| commit | 764820e742e73ca2d1fc47e8d0f57c8025046ff3 (patch) | |
| tree | 8f8a0cbbde81ee77eae30e8b5589d34c186fd486 | |
| parent | 77fd0a589cec2804ee761351f1fec90b4d811793 (diff) | |
osmux: Fix null ptr dereference sending UL data before the remote is configured
Related: SYS#6161
Change-Id: I5d7971c0ed9b22d35d8965af54031a43c6388762
| -rw-r--r-- | src/common/osmux.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/common/osmux.c b/src/common/osmux.c index 3f137e54..83730cec 100644 --- a/src/common/osmux.c +++ b/src/common/osmux.c @@ -493,6 +493,12 @@ int lchan_osmux_send_frame(struct gsm_lchan *lchan, const uint8_t *payload, rtph = (struct rtp_hdr *)msgb_data(msg); rtph->marker = marker; + /* Avoid using the osmux.in if not yet connected. */ + if (!lchan_osmux_connected(lchan)) { + msgb_free(msg); + return -1; + } + while ((rc = osmux_xfrm_input(lchan->abis_ip.osmux.in, msg, lchan->abis_ip.osmux.remote_cid)) > 0) { /* batch full, build and deliver it */ |