ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Sat Dec 14 00:37:27 2019 +0100| [f064c7c449f162a9011ad890f26ceeca26934d22] | committer: Michael Niedermayer
avcodec/mp3_header_decompress_bsf: Check sample_rate_index Fixes: out of array read Fixes: 19309/clusterfuzz-testcase-minimized-ffmpeg_BSF_MP3_HEADER_DECOMPRESS_fuzzer-5651002950942720 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Paul B Mahol <one...@gmail.com> Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=f064c7c449f162a9011ad890f26ceeca26934d22 --- libavcodec/mp3_header_decompress_bsf.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/libavcodec/mp3_header_decompress_bsf.c b/libavcodec/mp3_header_decompress_bsf.c index 294858953c..ab3d420300 100644 --- a/libavcodec/mp3_header_decompress_bsf.c +++ b/libavcodec/mp3_header_decompress_bsf.c @@ -62,6 +62,11 @@ static int mp3_header_decompress(AVBSFContext *ctx, AVPacket *out) lsf = sample_rate < (24000+32000)/2; mpeg25 = sample_rate < (12000+16000)/2; sample_rate_index= (header>>10)&3; + if (sample_rate_index == 3) { + ret = AVERROR_INVALIDDATA; + goto fail; + } + sample_rate= avpriv_mpa_freq_tab[sample_rate_index] >> (lsf + mpeg25); //in case sample rate is a little off for(bitrate_index=2; bitrate_index<30; bitrate_index++){ _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
