ffmpeg | branch: release/4.3 | Michael Niedermayer <mich...@niedermayer.cc> | Tue Jun 30 21:32:53 2020 +0200| [d25345bb006c8ba757eb3608bb55d18f5ae84c53] | committer: Michael Niedermayer
avcodec/hcadec: Check total_band_count against imdct_in size Fixes: index 128 out of bounds for type 'float [128]' Fixes: 23465/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HCA_fuzzer-5089866596745216 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> (cherry picked from commit 2d96c945312d3f62e3f872bfb51a593afb40e09a) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=d25345bb006c8ba757eb3608bb55d18f5ae84c53 --- libavcodec/hcadec.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/libavcodec/hcadec.c b/libavcodec/hcadec.c index 5fa87319d2..f46ed699d1 100644 --- a/libavcodec/hcadec.c +++ b/libavcodec/hcadec.c @@ -157,6 +157,10 @@ static av_cold int decode_init(AVCodecContext *avctx) } else return AVERROR_INVALIDDATA; + if (c->total_band_count > FF_ARRAY_ELEMS(c->ch->imdct_in)) + return AVERROR_INVALIDDATA; + + while (get_bits_left(gb) >= 32) { chunk = get_bits_long(gb, 32); if (chunk == MKBETAG('v', 'b', 'r', 0)) { _______________________________________________ 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".
