Fixes: out of array access Fixes: 15649/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VORBIS_fuzzer-5729191309344768
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/vorbisdec.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/libavcodec/vorbisdec.c b/libavcodec/vorbisdec.c index 7f2d27d1a2..d6c6a56e0c 100644 --- a/libavcodec/vorbisdec.c +++ b/libavcodec/vorbisdec.c @@ -1128,8 +1128,10 @@ static int vorbis_floor0_decode(vorbis_context *vc, ff_dlog(NULL, "floor0 dec: maximum depth: %d\n", codebook.maxdepth); /* read temp vector */ vec_off = get_vlc2(&vc->gb, codebook.vlc.table, - codebook.nb_bits, codebook.maxdepth) - * codebook.dimensions; + codebook.nb_bits, codebook.maxdepth); + if (vec_off < 0) + return vec_off; + vec_off *= codebook.dimensions; ff_dlog(NULL, "floor0 dec: vector offset: %d\n", vec_off); /* copy each vector component and add last to it */ for (idx = 0; idx < codebook.dimensions; ++idx) -- 2.22.0 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
