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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-08-11 19:27:02 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-08-11 19:27:52 +0200 |
| commit | 0561bd2fc2bff0dbe651d5998e9f129c43d25eb3 (patch) | |
| tree | 51378b22f8a1162edf514a2ce103766c77dcd508 /libavcodec/gdv.c | |
| parent | 62702eebded6c6341d214405812a981f80e46ea2 (diff) | |
| download | ffmpeg-0561bd2fc2bff0dbe651d5998e9f129c43d25eb3.tar.gz | |
avcodec/gdv: Check available space before reading palette
Fixes: Timeout
Fixes: 2926/clusterfuzz-testcase-498711001458278
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 b324e4f26e..dc91869edf 100644 --- a/libavcodec/gdv.c +++ b/libavcodec/gdv.c @@ -427,6 +427,8 @@ static int gdv_decode_frame(AVCodecContext *avctx, void *data, case 1: memset(gdv->frame + PREAMBLE_SIZE, 0, gdv->frame_size - PREAMBLE_SIZE); case 0: + if (bytestream2_get_bytes_left(gb) < 256*3) + return AVERROR_INVALIDDATA; for (i = 0; i < 256; i++) { unsigned r = bytestream2_get_byte(gb); unsigned g = bytestream2_get_byte(gb); |