[FFmpeg-devel] [PATCH] avformat/mov: Check for duplicate clli

[Michael Niedermayer]

Fixes: memleak
Fixes: 35261/clusterfuzz-testcase-minimized-ffmpeg_dem_MOV_fuzzer-4869656287510528

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
---
 libavformat/mov.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libavformat/mov.c b/libavformat/mov.c
index c5583e07c79..343c0c0ee35 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -5485,6 +5485,9 @@ static int mov_read_clli(MOVContext *c, AVIOContext *pb, MOVAtom atom)
         return AVERROR_INVALIDDATA;
     }
 
+    if (sc->coll)
+        return AVERROR_INVALIDDATA;
+
     sc->coll = av_content_light_metadata_alloc(&sc->coll_size);
     if (!sc->coll)
         return AVERROR(ENOMEM);
-- 
2.17.1