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avformat/mov: Check for EOF in mov_read_iloc()

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Fixes: Timeout
Fixes: 49216/clusterfuzz-testcase-minimized-ffmpeg_IO_DEMUXER_fuzzer-6563000529584128

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 744ad45c44)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer
2022-07-20 01:05:20 +02:00
parent 1c06f776e6
commit e8a51675ea
1 changed files with 2 additions and 0 deletions
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2
libavformat/mov.c
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@@ -7540,6 +7540,8 @@ static int mov_read_iloc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
for (int i = 0; i < item_count; i++) {
int item_id = (version < 2) ? avio_rb16(pb) : avio_rb32(pb);
if (avio_feof(pb))
return AVERROR_INVALIDDATA;
if (version > 0)
avio_rb16(pb); // construction_method.
avio_rb16(pb); // data_reference_index.