diff options
| author | Michael Niedermayer <[email protected]> | 2019-02-25 01:26:30 +0100 |
|---|---|---|
| committer | Michael Niedermayer <[email protected]> | 2019-03-21 10:42:52 +0100 |
| commit | 87eecb7d854599221c4112a241a49e742f4d1f66 (patch) | |
| tree | 1d8ee90a95f2166358406538454189791b34f4f7 | |
| parent | 24e4039c6fa152b40ff2ebb491f5ea9df88686aa (diff) | |
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 <[email protected]>
(cherry picked from commit 5cf42f65b60d226d1223d2100cb1d90402189275)
Signed-off-by: Michael Niedermayer <[email protected]>
| -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 79ca157dde..addd513091 100644 --- a/libavcodec/gdv.c +++ b/libavcodec/gdv.c @@ -244,6 +244,8 @@ 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) { |