ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Tue Nov 15 22:50:35 2016 +0100| [1546d487cf12da37d90a080813f8d57ac33036bf] | committer: Michael Niedermayer
avcodec/rv40: Test remaining space in loop of get_dimension() Fixes infinite loop Fixes: 178/fuzz-3-ffmpeg_VIDEO_AV_CODEC_ID_RV40_fuzzer Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=1546d487cf12da37d90a080813f8d57ac33036bf --- libavcodec/rv40.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavcodec/rv40.c b/libavcodec/rv40.c index 465011a..e5ba215 100644 --- a/libavcodec/rv40.c +++ b/libavcodec/rv40.c @@ -109,6 +109,8 @@ static int get_dimension(GetBitContext *gb, const int *dim) val = dim[get_bits1(gb) - val]; if(!val){ do{ + if (get_bits_left(gb) < 8) + return AVERROR_INVALIDDATA; t = get_bits(gb, 8); val += t << 2; }while(t == 0xFF); _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
