ffmpeg | branch: release/4.0 | Michael Niedermayer <mich...@niedermayer.cc> | Mon Feb 25 01:26:30 2019 +0100| [87eecb7d854599221c4112a241a49e742f4d1f66] | committer: Michael Niedermayer
avcodec/gdv: Check for truncated tags in decompress_5() Testcase: 13169/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_GDV_fuzzer-5666354038833152 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 5cf42f65b60d226d1223d2100cb1d90402189275) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=87eecb7d854599221c4112a241a49e742f4d1f66 --- libavcodec/gdv.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavcodec/gdv.c b/libavcodec/gdv.c index 79ca157dde..addd513091 100644 --- a/libavcodec/gdv.c +++ b/libavcodec/gdv.c @@ -244,6 +244,8 @@ static int decompress_5(AVCodecContext *avctx, unsigned skip) while (bytestream2_get_bytes_left_p(pb) > 0 && bytestream2_get_bytes_left(gb) > 0) { int tag = read_bits2(&bits, gb); + if (bytestream2_get_bytes_left(gb) < 1) + return AVERROR_INVALIDDATA; if (tag == 0) { bytestream2_put_byte(pb, bytestream2_get_byte(gb)); } else if (tag == 1) { _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
