avcodec/ralf: Fix undefined pointer in decode_channel()

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>
This commit is contained in:
Michael Niedermayer 2019-08-04 17:25:55 +02:00
parent ccca484324
commit 3c06ba1716

View File

@ -286,7 +286,7 @@ static int decode_channel(RALFContext *ctx, GetBitContext *gb, int ch,
add_bits--;
range = 10;
range2 = 21;
code_vlc = set->long_codes + code_params - 15;
code_vlc = set->long_codes + (code_params - 15);
} else {
add_bits = 0;
range = 6;