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avcodec/aacsbr_template: Do not leave bs_num_env invalid

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Fixes out of array read
Fixes: 1349/clusterfuzz-testcase-minimized-5370707196248064

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-05-05 23:00:59 +02:00
parent a234b5ade3
commit a8ad83b793
1 changed files with 2 additions and 0 deletions
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2
libavcodec/aacsbr_template.c
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@ -640,6 +640,7 @@ static int read_sbr_grid(AACContext *ac, SpectralBandReplication *sbr,
av_log(ac->avctx, AV_LOG_ERROR,
"Invalid bitstream, too many SBR envelopes in FIXFIX type SBR frame: %d\n",
ch_data->bs_num_env);
ch_data->bs_num_env = 2;
return -1;
}
@ -695,6 +696,7 @@ static int read_sbr_grid(AACContext *ac, SpectralBandReplication *sbr,
av_log(ac->avctx, AV_LOG_ERROR,
"Invalid bitstream, too many SBR envelopes in VARVAR type SBR frame: %d\n",
ch_data->bs_num_env);
ch_data->bs_num_env = 2;
return -1;
}