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| author | Michael Niedermayer <michael@niedermayer.cc> | 2024-08-15 00:37:05 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2024-08-28 17:38:28 +0200 |
| commit | 4e39795c75e664ef06f17473adec8c75fcf9de6f (patch) | |
| tree | 9b4b58b3a3f285a27bae042148cbbac676b54e97 | |
| parent | 53387079301690f1bd38b97fdf31d63194201d17 (diff) | |
| download | ffmpeg-4e39795c75e664ef06f17473adec8c75fcf9de6f.tar.gz | |
avformat/mvdec: Check if name was fully read
Fixes: use of uninitialized value
Fixes: 70901/clusterfuzz-testcase-minimized-ffmpeg_dem_MV_fuzzer-6341913949569024
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/mvdec.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libavformat/mvdec.c b/libavformat/mvdec.c index 0718f0483a..c045d2c7c8 100644 --- a/libavformat/mvdec.c +++ b/libavformat/mvdec.c @@ -256,7 +256,8 @@ static int read_table(AVFormatContext *avctx, AVStream *st, if (avio_feof(pb)) return AVERROR_EOF; - avio_read(pb, name, 16); + if (avio_read(pb, name, 16) != 16) + return AVERROR_INVALIDDATA; name[sizeof(name) - 1] = 0; size = avio_rb32(pb); if (size < 0) { |