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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-02-25 01:26:30 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-03-03 13:17:02 +0100 |
| commit | 5cf42f65b60d226d1223d2100cb1d90402189275 (patch) | |
| tree | 57ea4eaed5c284efb669db2523ad6677dc2498c3 /libavcodec/gdv.c | |
| parent | b8ecadec0582a1521b5d0d253376966138e6ca78 (diff) | |
| download | ffmpeg-5cf42f65b60d226d1223d2100cb1d90402189275.tar.gz | |
avcodec/gdv: Check for truncated tags in decompress_5()
Testcase: 13169/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_GDV_fuzzer-5666354038833152
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 'libavcodec/gdv.c')
| -rw-r--r-- | libavcodec/gdv.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavcodec/gdv.c b/libavcodec/gdv.c index c5d80f43f6..183286b55f 100644 --- a/libavcodec/gdv.c +++ b/libavcodec/gdv.c @@ -294,6 +294,8 @@ static int decompress_5(AVCodecContext *avctx, unsigned skip) while (bytestream2_get_bytes_left_p(pb) > 0 && bytestream2_get_bytes_left(gb) > 0) { int tag = read_bits2(&bits, gb); + if (bytestream2_get_bytes_left(gb) < 1) + return AVERROR_INVALIDDATA; if (tag == 0) { bytestream2_put_byte(pb, bytestream2_get_byte(gb)); } else if (tag == 1) { |