ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Sat Nov 23 09:18:12 2019 +0100| [19c41969b26d07519fff8182a0d3266cdb712078] | committer: Michael Niedermayer
avcodec/wmavoice: Check remaining input in parse_packet_header() Fixes: Infinite loop Fixes: 18914/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMAVOICE_fuzzer-5731902946541568 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=19c41969b26d07519fff8182a0d3266cdb712078 --- libavcodec/wmavoice.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavcodec/wmavoice.c b/libavcodec/wmavoice.c index 9420d7f0c8..85c80ecca8 100644 --- a/libavcodec/wmavoice.c +++ b/libavcodec/wmavoice.c @@ -1843,6 +1843,9 @@ static int parse_packet_header(WMAVoiceContext *s) skip_bits(gb, 4); // packet sequence number s->has_residual_lsps = get_bits1(gb); do { + if (get_bits_left(gb) < 6 + s->spillover_bitsize) + return AVERROR_INVALIDDATA; + res = get_bits(gb, 6); // number of superframes per packet // (minus first one if there is spillover) n_superframes += res; _______________________________________________ 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".
