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avcodec/aacdec: Check if we run out of input in read_stream_mux_config()

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Fixes: Infinite loop
Fixes: 16920/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AAC_LATM_fuzzer-5653421289373696

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 2019-09-08 21:08:31 +02:00
parent 1e984a6915
commit 3dce4d03d5
1 changed files with 2 additions and 0 deletions
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libavcodec/aacdec.c
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@ -409,6 +409,8 @@ static int read_stream_mux_config(struct LATMContext *latmctx,
} else { } else {
int esc; int esc;
do { do {
if (get_bits_left(gb) < 9)
return AVERROR_INVALIDDATA;
esc = get_bits(gb, 1); esc = get_bits(gb, 1);
skip_bits(gb, 8); skip_bits(gb, 8);
} while (esc); } while (esc);