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| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-12-04 20:11:35 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-12-06 14:25:55 +0100 |
| commit | 59b4e7cbd87889c0bac710ac7f62782b637419a1 (patch) | |
| tree | 89d6eeec461e776bd9a4772ffb2a6db286390fda /libavformat/mov.c | |
| parent | b0b90100bfda8c5cf95889e00183589de0abce60 (diff) | |
| download | ffmpeg-59b4e7cbd87889c0bac710ac7f62782b637419a1.tar.gz | |
avformat/mov: Check for EOF in mov_read_glbl()
Fixes: Infinite loop
Fixes: 41351/clusterfuzz-testcase-minimized-ffmpeg_dem_MOV_fuzzer-5433895854669824
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavformat/mov.c')
| -rw-r--r-- | libavformat/mov.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavformat/mov.c b/libavformat/mov.c index 5c74d099da..bf9e58197b 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -1930,6 +1930,8 @@ static int mov_read_glbl(MOVContext *c, AVIOContext *pb, MOVAtom atom) // wrap a whole fiel atom inside of a glbl atom. unsigned size = avio_rb32(pb); unsigned type = avio_rl32(pb); + if (avio_feof(pb)) + return AVERROR_INVALIDDATA; avio_seek(pb, -8, SEEK_CUR); if (type == MKTAG('f','i','e','l') && size == atom.size) return mov_read_default(c, pb, atom); |