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| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-12-05 22:19:05 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2022-01-13 22:44:11 +0100 |
| commit | 19a307f68d005d62dbac9dc75474a633bd95f03e (patch) | |
| tree | c53eb4f46b10ce43099e460466de6ceea1eda073 /libavformat | |
| parent | 5e8556dd369dc4d4e0cb7c886aca2762c8f28db5 (diff) | |
| download | ffmpeg-19a307f68d005d62dbac9dc75474a633bd95f03e.tar.gz | |
avformat/mxfdec: Check for duplicate mxf_read_index_entry_array()
Fixes: memleak
Fixes: 41596/clusterfuzz-testcase-minimized-ffmpeg_dem_MXF_fuzzer-6439060204290048
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Tomas Härdin <tjoppen@acc.umu.se>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 4f44a218e53cd92e64ba10a935bc1e7583c3e218)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavformat')
| -rw-r--r-- | libavformat/mxfdec.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c index 2f44c5ae08..2d06ace14a 100644 --- a/libavformat/mxfdec.c +++ b/libavformat/mxfdec.c @@ -900,6 +900,9 @@ static int mxf_read_index_entry_array(AVIOContext *pb, MXFIndexTableSegment *seg { int i, length; + if (segment->temporal_offset_entries) + return AVERROR_INVALIDDATA; + segment->nb_index_entries = avio_rb32(pb); length = avio_rb32(pb); |