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avcodec/ralf: Fix undefined pointer in decode_channel()

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Fixes: 16203/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RALF_fuzzer-5086088934195200

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 3c06ba1716)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer
2019-08-04 17:25:55 +02:00
parent 414144a371
commit 5764b92f82
1 changed files with 1 additions and 1 deletions
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libavcodec/ralf.c
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@@ -286,7 +286,7 @@ static int decode_channel(RALFContext *ctx, GetBitContext *gb, int ch,
add_bits--; add_bits--;
range = 10; range = 10;
range2 = 21; range2 = 21;
code_vlc = set->long_codes + code_params - 15; code_vlc = set->long_codes + (code_params - 15);
} else { } else {
add_bits = 0; add_bits = 0;
range = 6; range = 6;