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Author SHA1 Message Date
Michael Niedermayer
0f0d00e96e avcodec/vp5/6/8: use vpX_rac_is_end() 
Reviewed-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit ab56e62e8f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
4e3e2788da avcodec/alsdec: Fix integer overflow in decode_var_block_data() 
Fixes: signed integer overflow: 1927975249 - -514719744 cannot be represented in type 'int'
Fixes: 16413/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALS_fuzzer-5651206856245248

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Thilo Borgmann <thilo.borgmann@mail.de>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 661a9b274b)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
600675e11b avcodec/alsdec: Limit maximum channels to 512 
There seems to be no limit in the specification and upto 64k could be stored
512 is choosen as limit as thats the maximum in a conformance sample

An alternative to this patch would be a max_channels variable

Fixes: OOM
Fixes: 16200/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALS_fuzzer-5764788793114624

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Suggested-by: Thilo Borgmann <thilo.borgmann@mail.de>
Reviewed-by: Thilo Borgmann <thilo.borgmann@mail.de>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit f51e4d026c)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
e31e1d75d1 avcodec/anm: Check input size for a frame with just a stop code 
Fixes: Timeout (11sec -> 6sec)
Fixes: 16344/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ANM_fuzzer-5673032000995328

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 1965161ef6)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
3760c85b88 avcodec/flicvideo: Optimize and Simplify FLI_COPY in flic_decode_frame_24BPP() by using bytestream2_get_buffer() 
Fixes: Timeout (31sec  -> 22sec)
Fixes: 16217/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FLIC_fuzzer-5658084189405184

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Tomas Härdin <tjoppen@acc.umu.se>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit e301736862)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
ec72482fc0 avcodec/loco: Check left column value 
Fixes: Timeout (42sec -> 379 ms)
Fixes: 16323/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_LOCO_fuzzer-5679178099195904

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>
(cherry picked from commit c812db814e)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
9c6c85f539 avcodec/ffwavesynth: Fixes invalid shift with pink noise seeking 
Fixes: left shift of negative value -961533698048
Fixes: 16242/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FFWAVESYNTH_fuzzer-5738550670131200

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Nicolas George <george@nsup.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit cdea0206ef)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
3b011b34dc avcodec/ffwavesynth: Fix integer overflow for some corner case values 
Fixes: left shift of negative value -14671840
Fixes: 16000/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FFWAVESYNTH_fuzzer-5145977817661440

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit c4a88fb546)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
28efd41bbc avcodec/indeo2: Check remaining input more often 
Fixes: Timeout (95sec -> 30ms)
Fixes: 14765/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_INDEO2_fuzzer-5692455527120896

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpe
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 52939a2c57)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
15219e3692 avcodec/diracdec: Check that slices are fewer than pixels 
Fixes: Timeout (197sec ->144ms)
Fixes: 15034/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DIRAC_fuzzer-5733549405110272

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit fbbc8ba67f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
9a4cec81dc avcodec/vp56: Consider the alpha start as end of the prior header 
Fixes: Timeout (23sec -> 71ms)
Fixes: 15661/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VP6A_fuzzer-6257865947348992

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit db78bc1297)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
4d523742e3 avcodec/4xm: Check for end of input in decode_p_block() 
Fixes: Timeout (81sec -> 0.2sec)
Fixes: 16169/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FOURXM_fuzzer-5662570416963584

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>
(cherry picked from commit 8f92eb05e0)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
a2be37ac9d avcodec/hevcdec: Check delta_luma_weight_l0/1 
Fixes: signed integer overflow: 1 + 2147483647 cannot be represented in type 'int'
Fixes: 16041/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HEVC_fuzzer-5685680656613376

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 021f29506b)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
cc0e1474f1 avcodec/hnm4video: Optimize postprocess_current_frame() 
Improves: Timeout (220sec -> 108sec)
Improves: 15570/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HNM4_VIDEO_fuzzer-5085482213441536

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Tomas Härdin <tjoppen@acc.umu.se>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit cd460f4da0)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
7d4e27ca90 avcodec/hevc_refs: Optimize 16bit generate_missing_ref() 
Fixes: Timeout (86sec -> 8sec) [these numbers assume also "[FFmpeg-devel] [PATCH 2/5] [RFC] avcodec/hevcdec: Check for overread in hls_decode_entry()"]
Fixes: 15702/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HEVC_fuzzer-5657764929470464

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit da8936969f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
21b72d8f6c avcodec/scpr: Use av_memcpy_backptr() in type 17 and 33 
This makes the changed code-path faster.

Change not tested except with the fuzzer testcase as I found no other testcase.

Improves: Timeout (136sec -> 74sec)
Improves: 16040/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SCPR_fuzzer-5705876062601216

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
(cherry picked from commit 950a21e83c)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
40c0a5a5fa avcodec/dds: Use ff_set_dimensions() 
Fixes: signed integer overflow: 2082471995 * 36 cannot be represented in type 'int'
Fixes: 16025/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DDS_fuzzer-5136663778426880

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>
(cherry picked from commit 9cd1e939cf)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
ffe4a51e0d avcodec/mpc8: Fix 32bit mask/enum 
Fixes: left shift of 1 by 31 places cannot be represented in type 'int'
Fixes: 15817/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MPC8_fuzzer-5636626409062400

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>
(cherry picked from commit e8bb949ade)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
2dcf33b9a9 avcodec/alsdec: Fix integer overflows of raw_samples in decode_var_block_data() 
This also makes the code consistent with the existing similar MUL64()
in decode_var_block_data()

Fixes: signed integer overflow: -7277630735906765035 + -3272193951413647896 cannot be represented in type 'long'
Fixes: 16015/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALS_fuzzer-5666552818434048

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit fad3ec89b7)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
8b156fe229 avcodec/alsdec: Fix integer overflow of raw_samples in decode_blocks() 
Fixes: signed integer overflow: 2147483424 - -1772303236 cannot be represented in type 'int'
Fixes: 15708/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALS_fuzzer-5067890362941440

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit ce65232406)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
e4ec2f5ab5 avcodec/alsdec: fix mantisse shift 
Fixes: shift exponent -1 is negative
Fixes: 16039/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALS_fuzzer-5656825657032704

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 02346292a3)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
bfbe5fbda8 avcodec/vc1_block: Fix invalid shifts in vc1_decode_i_blocks() 
Fixes: left shift of negative value -9
Fixes: 15299/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MSS2_fuzzer-5660922678345728
Fixes: 15557/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VC1IMAGE_fuzzer-5673351911047168

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit c9415e815a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
62bcdd07b2 avcodec/vc1_block: fix invalid shift in vc1_decode_p_mb() 
Fixes: left shift of negative value -5
Fixes: 15294/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VC1_fuzzer-5733921754447872

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit b153ba1c2e)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
29ebbe8cfe avcodec/aacdec_template: fix integer overflow in imdct_and_windowing() 
Fixes: signed integer overflow: 2147483645 + 4 cannot be represented in type 'int'
Fixes: 15418/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AAC_FIXED_fuzzer-5685269069561856

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit da93e2b142)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Andreas Rheinhardt
f482c38273 libavcodec/iff: Use unsigned to avoid undefined behaviour 
The initialization of the uint32_t plane32_lut matrix uses left shifts
of the form 1 << plane; plane can be as big as 31 which means that this
is undefined behaviour as 1 will be simply an int. So make it unsigned
to avoid this.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit f12e662a3d)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
0d019e2379 avcodec/alsdec: Check for block_length <= 0 in read_var_block_data() 
Fixes: left shift of negative value -1
Fixes: 15719/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALS_fuzzer-5685731105701888

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit be4fb282f9)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
731b4f7414 avcodec/vqavideo: Set video size 
Fixes: out of array access
Fixes: 15919/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VQA_fuzzer-5657368257363968

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 02f909dc24)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
e7c8bc5ae0 avcodec/sanm: Check extradata_size before allocations 
Fixes: Leaks
Fixes: 15349/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SANM_fuzzer-5102530557640704

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 172a43ce36)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
1bc9b64cf4 avcodec/mss1: check for overread and forward errors 
Fixes: Timeout (106sec -> 14ms)
Fixes: 15576/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MSS1_fuzzer-5688080461201408

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>
(cherry picked from commit 43015afd7c)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
145c923bfe avcodec/loco: Check for end of input in pixel decode 
Fixes: Timeout (100sec -> 5sec)
Fixes: 15509/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_LOCO_fuzzer-5724297261219840

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>
(cherry picked from commit 8305a4509a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
7235bd1008 avcodec/dirac_parser: Fix overflow in dts 
Fixes: signed integer overflow: -2147483648 - 1 cannot be represented in type 'int'
Fixes: 15568/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DIRAC_fuzzer-5634719611355136

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>
(cherry picked from commit 549fcba8fc)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
9aa632c530 avcodec/ralf: Fix undefined pointer in decode_channel() 
Fixes: 16203/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RALF_fuzzer-5086088934195200

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 3c06ba1716)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
092bc6201f avcodec/ralf: Fix integer overflow in apply_lpc() 
Fixes: signed integer overflow: 1603085316 + 1238786562 cannot be represented in type 'int'
Fixes: 16203/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RALF_fuzzer-5086088934195200

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit ccca484324)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
55df48d776 avcodec/vorbisdec: Implement vr->classifications = 1 
It appears no valid file uses this, so this is not testable with
a valid file.

Fixes: assertion failure
Fixes: 16187/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VORBIS_fuzzer-5638880618872832

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 5a5f12e3b3)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
c05d5ca80b avcodec/vorbisdec: Check parameters in vorbis_floor0_decode() before divide 
Fixes: division by zero
Fixes: 16183/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VORBIS_fuzzer-5688966782648320

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit aecc9b96d6)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
8108273941 avformat/realtextdec: Check for duplicate extradata in realtext_read_header() 
Fixes: memleak
Fixes: 16140/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5684008052064256

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 652ea23cb3)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
3f57ece8e6 avcodec/cbs_av1_syntax_template: Check ref_frame_idx before use 
Fixes: index -1 out of bounds for type 'AV1ReferenceFrameState [8]'
Fixes: 16079/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5758807440883712

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: James Almer <jamrial@gmail.com>
See: [FFmpeg-devel] [PATCH 05/13] avcodec/cbs_av1_syntax_template: Check ref_frame_idx before use
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 8174e5c77d)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
10198572ce avcodec/apedec: Fix 2 signed overflows 
Fixes: left shift of 1073741824 by 1 places cannot be represented in type 'int'
Fixes: signed integer overflow: 2049431315 + 262759074 cannot be represented in type 'int'
Fixes: 16012/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APE_fuzzer-5719016003338240

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 392c028cd2)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
747c23e4fe avcodec/mss3: Check for the rac stream being invalid in rac_normalize() 
Fixes: out of array read
Fixes: 15982/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MSA1_fuzzer-5630676251967488

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 99a172f3f4)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
74788efadd avcodec/vc1_block: Check get_vlc2() return before use 
Fixes: index -1 out of bounds for type 'const uint8_t [185][2]'
Fixes: 15720/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MSS2_fuzzer-5666071933091840

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 2cb1f79735)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
1c5b4460b7 avcodec/apedec: Do not partially clear data array 
Fixes: Assertion failure and memleak
Fixes: 15709/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APE_fuzzer-5182435093905408

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 8e4b522c91)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
c1e67ca966 avcodec/atrac9dec: Check grad_range[1] more tightly 
Alternatively the array could be made bigger but the extra values
would not be read without other changes.

Fixes: Out of array access
Fixes: 15658/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ATRAC9_fuzzer-5738260074070016

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Lynne <dev@lynne.ee>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 208225bd78)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
73302b0d97 avcodec/hnm4video: Forward errors of decode_interframe_v4() 
Fixes: Timeout (108sec -> 160ms)
Fixes: 15570/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HNM4_VIDEO_fuzzer-5085482213441536

Reviewed-by: Tomas Härdin <tjoppen@acc.umu.se>
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 9af8ce754b)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
4b335031d0 avcodec/clearvideo: fix invalid shift in tile size check 
Fixes: left shift of 1 by 31 places cannot be represented in type 'int'
Fixes: 15631/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CLEARVIDEO_fuzzer-5690110605000704

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 5dc94924d0)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
14df7f8cbc avcodec/vp3: Check that theora is theora 
Theora is forced to be non zero if it is zero and a sample
is asked for, as suggested by reimar

Fixes: Timeout (2min -> 600ms)
Fixes: 15366/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_THEORA_fuzzer-5737849938247680

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit b4bf7226af)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
46a1b4e8ac avcodec/vc1_pred: Fix invalid shift in scaleforsame() 
Fixes: left shift of negative value -1
Fixes: 15531/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VC1IMAGE_fuzzer-5759556258365440

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 6dfda35dd2)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
38de5403c8 avcodec/vc1_block: Fix integer overflow in ff_vc1_pred_dc() 
Fixes: signed integer overflow: 32796 * 65536 cannot be represented in type 'int'
Fixes: 15430/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VC1IMAGE_fuzzer-5735424087031808

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit f31ed8f3b0)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
9431f39c91 avcodec/truemotion2: Fix several integer overflows in tm2_motion_block() 
Fixes: 15524/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TRUEMOTION2_fuzzer-5173148372172800
Fixes: signed integer overflow: 13701388 - -2134868270 cannot be represented in type 'int'

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 9a353ea876)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
7dbc888de6 avcodec/apedec: make left/right unsigned to avoid undefined behavior 
Fixes: signed integer overflow: 755176387 + 1515360583 cannot be represented in type 'int'
Fixes: 15506/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APE_fuzzer-5706859232624640

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit bf778af149)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00
Michael Niedermayer
102bc56731 avcodec/apedec: Fix multiple integer overflows and undefined behaviorin filter_3800() 
Fixes: left shift of negative value -4
Fixes: signed integer overflow: -15091694 * 167 cannot be represented in type 'int'
Fixes: signed integer overflow: 1898547155 + 453967445 cannot be represented in type 'int'
Fixes: 15258/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APE_fuzzer-5759095564402688
Fixes: signed integer overflow: 962196438 * 31 cannot be represented in type 'int'
Fixes: 15364/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APE_fuzzer-5718799845687296

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 267eb2ab7f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:42 +01:00