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26 Commits

Author SHA1 Message Date
Michael Niedermayer
27a2f65948 avformat/vividas: Test size and packet numbers a bit more 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-09-24 17:53:39 +02:00
Michael Niedermayer
8e51f35f81 avformat/vividas: Check n_sb_blocks against input space 
Fixes: OOM
Fixes: 16726/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5719320750981120

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-09-24 17:53:39 +02:00
Michael Niedermayer
8e8fd25272 avformat/vividas: Remove align offset which is always masked off 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-09-16 00:53:18 +02:00
Michael Niedermayer
08dc354ef7 avformat/vividas: remove dead assignment 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-09-16 00:53:18 +02:00
Michael Niedermayer
55d4e22d71 avformat/vividas: check for tiny blocks using alignment 
Ask for a sample for these
Fixes: out of array access
Fixes: 16624/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5762455661182976

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-09-06 22:25:35 +02:00
Michael Niedermayer
5937f05503 avformat/vividas: Check av_xiphlacing() return value before use 
Fixes: out of array access
Fixes: 16277/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5696629440512000

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-08-22 18:35:44 +02:00
Michael Niedermayer
1d72b5d2d5 avformat/vividas: Fix another infinite loop 
Not found by the fuzzer

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-08-11 19:13:21 +02:00
Michael Niedermayer
52b564ef13 avformat/vividas: Fix infinite loop in header parser 
Fixes: Timeout (Infinite -> Finite)
Fixes: 16010/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5638616102993920

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-08-11 19:13:21 +02:00
Michael Niedermayer
76133d7c8b avformat/vividas: Fix memleak of AVIOContext in track_header() 
Fixes: memleak
Fixes: 16127/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5649290914955264

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-08-05 17:54:24 +02:00
Michael Niedermayer
07357cd933 avformat/vividas: Check that value from ffio_read_varlen() does not overflow 
Fixes: signed integer overflow: -1241665686 + -1340629419 cannot be represented in type 'int'
Fixes: 15922/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5692826442006528

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-08-03 17:44:23 +02:00
Michael Niedermayer
8bac648359 avformat/vividas: forward errors from track_header() 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-08-03 17:44:23 +02:00
Michael Niedermayer
c3ef24d9ba avformat/vividas: Check buffer size before allocation 
Fixes: out of array access
Fixes: 15365/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5716153105645568

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-08-03 17:44:23 +02:00
Michael Niedermayer
8e41675e18 avformat/vividas: Check if extradata was read successfully 
Fixes: OOM
Fixes: 15575/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5654666781655040

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-08-03 17:44:23 +02:00
Michael Niedermayer
62d10ec35c avformat/vividas: Fixes overflow in shift in recover_key() 
Fixes: left shift of 133 by 24 places cannot be represented in type 'int'
Fixes: 15365/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5716153105645568

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Suggested-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Reviewed-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-07-14 22:17:43 +02:00
Michael Niedermayer
e69106e70c avformat/vividas: Check for input length in get_v() 
Fixes: out of array read
Fixes: 15286/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5658245101780992

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-07-08 09:50:00 +02:00
Michael Niedermayer
d8716e3df9 avformat/vividas: check length in read_vblock() 
Fixes: out of array access
Fixes: 15166/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5731062396747776

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-06-25 13:30:09 +02:00
Michael Niedermayer
01d8c72b95 avformat/vividas: reduce keybits to require half the space 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-06-21 18:28:00 +02:00
Michael Niedermayer
8c6c2747bc avformat/vividas: Fix invalid shift in decode_key() 
Fixes: left shift of 1 by 31 places cannot be represented in type 'int'
Fixes: 15118/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5740230004441088

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-06-21 18:28:00 +02:00
Carl Eugen Hoyos
4d8875ec23 lavf: Constify the probe function argument. 
Reviewed-by: Lauri Kasanen
Reviewed-by: Tomas Härdin
 2019-03-21 11:42:17 +01:00
Carl Eugen Hoyos
01db03f158 lavf/vividas: Support demuxing on big-endian hardware. 2018-12-28 00:20:47 +01:00
Carl Eugen Hoyos
17aed996bc lavf/vividas: Do not increase extradata_size after allocation. 
Avoids a crash in avcodec_parameters_from_context().
 2018-12-28 00:20:41 +01:00
Paul B Mahol
d62cb29716 avformat/vividas: check if viv->sb_pb is not NULL 2018-12-22 13:36:36 +01:00
Paul B Mahol
e9909fe194 avformat/vividas: check if size is enough big in xor_block 2018-12-22 11:14:39 +01:00
Paul B Mahol
14c2f7f652 avformat/vividas: fix undefined behaviour 2018-12-22 11:14:21 +01:00
Paul B Mahol
297e65c676 avformat/vividas: check if value from ffio_read_varlen() is too big 2018-12-22 11:14:21 +01:00
Paul B Mahol
d06aae732c avformat: add vividas demuxer 2018-12-20 19:32:27 +01:00