ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Tue Dec 3 21:33:18 2019 +0100| [e1d836d2375c93cbc44a2b0d34e404682c1e8436] | committer: Michael Niedermayer
avcodec/atrac9dec: Check q_unit_cnt more completely before using it to access at9_tab_band_ext_group Fixes: index 8 out of bounds for type 'const uint8_t [8][3]' Fixes: 19127/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ATRAC9_fuzzer-5709394985091072 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Lynne <d...@lynne.ee> Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=e1d836d2375c93cbc44a2b0d34e404682c1e8436 --- libavcodec/atrac9dec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/atrac9dec.c b/libavcodec/atrac9dec.c index e3e4f2f14e..5415d1348e 100644 --- a/libavcodec/atrac9dec.c +++ b/libavcodec/atrac9dec.c @@ -199,7 +199,7 @@ static inline int parse_band_ext(ATRAC9Context *s, ATRAC9BlockData *b, int ext_band = 0; if (b->has_band_ext) { - if (b->q_unit_cnt < 13) + if (b->q_unit_cnt < 13 || b->q_unit_cnt > 20) return AVERROR_INVALIDDATA; ext_band = at9_tab_band_ext_group[b->q_unit_cnt - 13][2]; if (stereo) { _______________________________________________ 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".
