In order to not generate 0 sized packets or create a huge index table
needlessly.
Fixes: Timeout
Fixes:
43717/clusterfuzz-testcase-minimized-ffmpeg_IO_DEMUXER_fuzzer-5206008287330304
Fixes:
45738/clusterfuzz-testcase-minimized-ffmpeg_IO_DEMUXER_fuzzer-6142535657979904
Signed-off-by: Marton Balint <c...@passwd.hu>
---
libavformat/mov.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/libavformat/mov.c b/libavformat/mov.c
index c6fbe511c0..d7ef6ba6d6 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -5179,6 +5179,8 @@ static int mov_read_trun(MOVContext *c, AVIOContext *pb,
MOVAtom atom)
distance++;
if (av_sat_add64(dts, sample_duration) != dts +
(uint64_t)sample_duration)
return AVERROR_INVALIDDATA;
+ if (!sample_size)
+ return AVERROR_INVALIDDATA;
dts += sample_duration;
offset += sample_size;
sc->data_size += sample_size;
--
2.35.3
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