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avcodec/fic: Check that there is input left in fic_decode_block()

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Fixes: Timeout
Fixes: 12450/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FIC_fuzzer-5661984622641152

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2019-01-23 00:30:53 +01:00
parent b559c58a03
commit db1c4acd02
1 changed files with 3 additions and 0 deletions
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3
libavcodec/fic.c
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@ -139,6 +139,9 @@ static int fic_decode_block(FICContext *ctx, GetBitContext *gb,
{
int i, num_coeff;
if (get_bits_left(gb) < 8)
return AVERROR_INVALIDDATA;
/* Is it a skip block? */
if (get_bits1(gb)) {
*is_p = 1;