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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-02-25 01:26:30 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-03-24 10:38:51 +0100 |
| commit | 98fa61c020722f7251435f3377eba449127962d8 (patch) | |
| tree | 0d7e9bd52ad7dd4ba0ed646a7ca7f45945f7c866 | |
| parent | 6abc6acd50ae02e0e9d77557fab53a665c46aeb9 (diff) | |
| download | ffmpeg-98fa61c020722f7251435f3377eba449127962d8.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>
(cherry picked from commit 5cf42f65b60d226d1223d2100cb1d90402189275)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -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 d4d24931c9..98bdee5aca 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) { |