Fixes: bypassing of checks and assertion failure
Fixes: asan_1003879.mp4
Found-by: Clusterfuzz + asan
Reported-by: Thomas Guilbert <tguilb...@google.com>
Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
---
libavformat/mov.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/libavformat/mov.c b/libavformat/mov.c
index 589576b529..75f098af09 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -1976,6 +1976,10 @@ static int mov_read_stco(MOVContext *c, AVIOContext *pb,
MOVAtom atom)
MOVStreamContext *sc;
unsigned int i, entries;
+ if (c->trak_index < 0) {
+ av_log(c->fc, AV_LOG_WARNING, "STCO outside TRAK\n");
+ return 0;
+ }
if (c->fc->nb_streams < 1)
return 0;
st = c->fc->streams[c->fc->nb_streams-1];
--
2.24.0
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