[FFmpeg-devel] [PATCH 5/5] avformat/rdt: Check pkt_len

[Michael Niedermayer]

Fixes: CID1473553 Untrusted loop bound

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
---
 libavformat/rdt.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libavformat/rdt.c b/libavformat/rdt.c
index 60449d256a5..2fa53d34a8d 100644
--- a/libavformat/rdt.c
+++ b/libavformat/rdt.c
@@ -206,6 +206,8 @@ ff_rdt_parse_header(const uint8_t *buf, int len,
             return -1; /* not followed by a data packet */
 
         pkt_len = AV_RB16(buf+3);
+        if (pkt_len > len)
+            return AVERROR_INVALIDDATA;
         buf += pkt_len;
         len -= pkt_len;
         consumed += pkt_len;
-- 
2.45.2