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Author SHA1 Message Date
Michael Niedermayer
b30d2683c4 avcodec/aliaspixdec: Check input size against minimal picture size 
Fixes: Timeout (15sec -> 72ms)
Fixes: 17774/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALIAS_PIX_fuzzer-5193929107963904

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 8c69310477)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
a62cb90385 avcodec/ffwavesynth: Fix integer overflows in pink noise addition 
Fixes: signed integer overflow: -1795675744 + -1926578528 cannot be represented in type 'int'
Fixes: 17741/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FFWAVESYNTH_fuzzer-5131336402075648

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 7916b6863c)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
15e0e6e873 avcodec/vc1_block: Fixes integer overflow in vc1_decode_i_block_adv() 
Fixes: signed integer overflow: 62220 * 262144 cannot be represented in type 'int'
Fixes: 17145/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VC1IMAGE_fuzzer-5667394743173120

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 6fdeb20817)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
a705362dbd avcodec/wmalosslessdec: Check block_align 
Fixes: NULL pointer dereference
Fixes: 18331/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMALOSSLESS_fuzzer-5652847445671936

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 c1c799271e)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
a0c91fb0f0 avcodec/g729postfilter: Fix left shift of negative value 
Fixes: Ticket8176

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 5f0acc5064)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
7bf2546301 avcodec/binkaudio: Check sample rate 
Fixes: signed integer overflow: 1092624416 * 2 cannot be represented in type 'int'
Fixes: 18045/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_BINKAUDIO_RDFT_fuzzer-5718519492116480

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Reviewed-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 2fca09bce4)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
c7520f4825 avcodec/sbcdec: Fix integer overflows in sbc_synthesize_eight() 
Fixes: signed integer overflow: 518484152 + 1868182638 cannot be represented in type 'int'
Fixes: 17732/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SBC_fuzzer-5663738132168704

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 c70d547751)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
c5ecfccb5f avcodec/adpcm: Check initial predictor for ADPCM_IMA_EA_EACS 
Fixes: signed integer overflow: -2147483360 - 631 cannot be represented in type 'int'
Fixes: 17701/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ADPCM_IMA_EA_EACS_fuzzer-5711517319692288

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 2f66e8436d)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
dfcd3ad2bc avcodec/g723_1dec: Fix overflow in shift 
Fixes: shift exponent 1008 is too large for 32-bit type 'int'
Fixes: 17700/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_G723_1_fuzzer-5707633436131328

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 07732f12a4)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
4d392fc27c avcodec/apedec: Fix integer overflow in predictor_update_3930() 
Fixes: signed integer overflow: -69555262 * 31 cannot be represented in type 'int'
Fixes: 17698/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APE_fuzzer-5728970447781888

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 5c072c9ed7)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
fa9ca0b663 avcodec/g729postfilter: Fix undefined intermediate pointers 
Fixes: index -49 out of bounds for type 'int16_t [192]'
Fixes: 17689/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ACELP_KELVIN_fuzzer-5756275014500352

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 0c61661a2c)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
45e31d6dd0 avcodec/g729postfilter: Fix undefined shifts 
Fixes: left shift of negative value -12
Fixes: 17689/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ACELP_KELVIN_fuzzer-5756275014500352

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 6a4fdbf112)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
b977836eda avcodec/lsp: Fix undefined shifts in lsp2poly() 
Fixes: left shift of negative value -30635
Fixes: 17689/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ACELP_KELVIN_fuzzer-5756275014500352

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 2b93f52cd6)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
17e3552008 avcodec/adpcm: Fix left shifts in AV_CODEC_ID_ADPCM_EA 
Fixes: left shift of negative value -1
Fixes: 17683/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ADPCM_EA_R2_fuzzer-5111690013704192

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 8695fbec57)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
881b3de55a avformat/shortendec: Check k in probe 
Fixes: Assertion failure
Fixes: 17640/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5708767475269632

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 ea770eb559)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
f238fcdb3e avfilter/vf_geq: Use av_clipd() instead of av_clipf() 
With floats we cannot represent all 32bit integer dimensions

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit c8813b1a98)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
6247243e07 avcodec/wmaprodec: Check that the streams channels do not exceed the overall channels 
Fixes: NULL pointer dereference
Fixes: 18075/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_XMA1_fuzzer-5708262036471808
Fixes: 18087/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_XMA1_fuzzer-5740627634946048

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 e418b315dd)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
0240d56daf avcodec/qdmc: Check input space in qdmc_get_vlc() 
Fixes: Timeout (125sec -> 0.4sec)
Fixes: 18059/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_QDMC_fuzzer-5656195825664000

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 2c7975fe6f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
3088c82476 avcodec/pcm: Check bits_per_coded_sample 
Fixes: shift exponent -2 is negative
Fixes: 17736/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_PCM_F16LE_fuzzer-5742815929171968
Fixes: 17998/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_PCM_F24LE_fuzzer-5716980383875072

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 5de19160a3)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
25a7110651 avcodec/exr: Allow duplicate use of channel indexes 
Fixes: Ticket #8203

Reported-by: durandal_1707
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 080819b3b4)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
9c2659f4ab avcodec/fitsdec: Fail on 0 naxisn 
Fixes: Timeout (100+ sec -> 23ms)
Fixes: 17769/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FITS_fuzzer-5678314672357376

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 4a3303d520)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
39183277ef avcodec/dxv: Subtract 12 earlier in dxv_decompress_cocg() 
the data_start is after reading 12 bytes and if its subtracted
at the very end the intermediate might overflow

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit dd9e6d077e)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
97244c8c62 libavcodec/dxv: Remove redundant seek 
This seeks to the position the previous call to dxv_decompress_opcodes()
positioned us in case of success

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit c371e50b4f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
71e56b44ed avcodec/ituh263dec: Check input for minimal frame size 
Fixes: Timeout (28sec -> 3sec)
Fixes: 17559/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_H263_fuzzer-5681050776240128

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 7f0498ed46)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
cc2a919086 avcodec/truemotion1: Check that the input has enough space for a minimal index_stream 
Fixes: Timeout (18sec -> 0.4sec)
Fixes: 17585/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TRUEMOTION1_fuzzer-5117015135617024

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 4a660fac98)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
e8206b63ad avformat/mpsubdec: Clear queue on error 
Fixes: Memleaks
Fixes: 17219/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5720539124989952

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 9a0d36e562)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
3a661be4c4 avcodec/sunrast: Check that the input is large enough for the maximally compressed image 
Fixes: Timeout (17sec -> 15ms)
Fixes: 17224/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SUNRAST_fuzzer-5663218491457536
Fixes: 17224/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SUNRAST_fuzzer-5735590015795200

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 bf0ba75c4a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
b1ae124919 avcodec/sunrast: Check for availability of maplength before allocating image 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 711ad71aea)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
1da6cfeccb avformat/subtitles: Check nb_subs in ff_subtitles_queue_finalize() 
Fixes: null pointer dereference
Fixes: 17828/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5645915116797952
Fixes: Ticket8147

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 81b53913bb)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
317c63d3f4 avcodec/vc1_block: Fix invalid left shift in vc1_decode_p_mb() 
Fixes: left shift of negative value -6
Fixes: 17810/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VC1_fuzzer-5638541240958976

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 2f588ccfb7)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
3ae6eee2a7 avcodec/wmaprodec: Check if there is a stream 
Fixes: null pointer dereference
Fixes: signed integer overflow: 512 * 2147483647 cannot be represented in type 'int'
Fixes: 17809/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_XMA1_fuzzer-5634409947987968

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 9b533de28e)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
c8823d4957 avcodec/g2meet: Check for end of input in jpg_decode_block() 
Fixes: Timeout (100sec -> 0.7sec)
Fixes: 8668/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_G2M_fuzzer-5174143888130048

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 61dd2e07be)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
a547d59079 avcodec/g2meet: Check if adjusted pixel was on the stack 
This basically checks if a pixel that was coded with prediction
and residual could have been stored using a previous case.
This avoids basically a string of 0 symbols stored in less than
50 bytes to hit a O(n²) codepath.

Fixes: Timeout (too slow to wait -> immediately)
Fixes: 8668/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_G2M_fuzzer-4895946310680576

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 9c84c162e9)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
e644b74074 avformat/electronicarts: If no packet has been read at the end do not treat it as if theres a packet 
Fixes: Assertion failure
Fixes: 17770/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5700606668308480

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 c4de49edc4)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
45836a60f5 avcodec/dxv: Check op_offset in dxv_decompress_yo() 
Fixes: signed integer overflow: -2147483648 - 8 cannot be represented in type 'int'
Fixes: 17745/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DXV_fuzzer-5734628463214592

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 97450d2b6a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
5e3a827e9d avcodec/utils: Check sample_rate before opening the decoder 
Fixes: signed integer overflow: 2 * -1306460384 cannot be represented in type 'int'
Fixes: 17685/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AAC_fuzzer-5747390337777664
Fixes: 17688/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_INTERPLAY_ACM_fuzzer-5739287210885120
Fixes: 17699/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_INTERPLAY_ACM_fuzzer-5678394531905536
Fixes: 17738/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TAK_fuzzer-5763415733174272
Fixes: 17746/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_BINKAUDIO_RDFT_fuzzer-5703008159006720

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 75fefb1fb7)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
f5636c5b20 avcodec/aptx: Fix multiple shift anomalies 
Fixes: left shift of negative value -24576
Fixes: 17719/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APTX_fuzzer-5710508002377728

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 675f62a202)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
James Almer
781a4a43b5 avcodec/fitsdec: fix use of uninitialised values 
header.data_max and header.data_min are not necessarely set on all decoding scenarios.

Fixes a Valgrind reported regression since cfa1937791.

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit e3f0ecfc57)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
dc5760a909 avcodec/motionpixels: Mark 2 functions as always_inline 
Fixes: Timeout (30sec -> 25sec)
Fixes: 17050/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MOTIONPIXELS_fuzzer-5719149803732992

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 017884bdc3)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
20a923a3ae avcodec/ituh263dec: Make the condition for the studio slice start code match between ff_h263_resync() and ff_mpeg4_decode_studio_slice_header() 
If they mismatch an infinite loop can occur
Fixes: Timeout (infinite loop)
Fixes: 17043/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MPEG4_fuzzer-5695051748868096

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 8335ba8ae9)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
6b9a6088d6 avcodec/ralf: Fix integer overflow in decode_channel() 
Fixes: signed integer overflow: -1094995519 * 64 cannot be represented in type 'int'
Fixes: 17030/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RALF_fuzzer-5640695838146560

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 fbb314b6f2)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
d3f8892249 vcodec/vc1: compute rangex/y only for P/B frames 
Fixes: left shift of 1073741824 by 1 places cannot be represented in type 'int'
Fixes: 16976/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VC1_fuzzer-4847262047404032

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 e75e7fe160)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
26db773767 avcodec/vc1_pred: Fix invalid shifts in scaleforopp() 
Fixes: left shift of negative value -2
Fixes: 16964/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VC1IMAGE_fuzzer-5757853565976576

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 ced9a1cd0a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
a9788d00ee avcodec/vc1_block: Fix invalid shift with rangeredfrm 
Fixes: left shift of negative value -7
Fixes: 16959/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMV3_fuzzer-5200360825683968

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 c722a69253)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
cd949baefd avcodec/vc1: Check for excessive resolution 
Fixes: overflow in aspect ratio calculation
Fixes: signed integer overflow: 393215 * 14594 cannot be represented in type 'int'
Fixes: 15728/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMV3IMAGE_fuzzer-5661588893204480

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 181e138da7)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
79dffb7f2c avcodec/vc1: check REFDIST 
"9.1.1.43 P Reference Distance (REFDIST)"
"The value of REFDIST shall be less than, or equal to, 16."

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 7f7af9e294)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
fe51b4d5a0 avcodec/apedec: Fix several integer overflows in predictor_update_filter() and do_apply_filter() 
Fixes: negation of -2147483648 cannot be represented in type 'int'; cast to an unsigned type to negate this value to itself
Fixes: signed integer overflow: -14527961 - 2147483425 cannot be represented in type 'int'
Fixes: 16380/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APE_fuzzer-5645957131141120
Fixes: 16968/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APE_fuzzer-5716169901735936
Fixes: 17074/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APE_fuzzer-5198710497083392

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 1e95a3e8a7)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
588c735ce5 avcodec/hevc_cabac: Tighten the limit on k in ff_hevc_cu_qp_delta_abs() 
Values larger would fail subsequent tests.

Fixes: signed integer overflow: 5 + 2147483646 cannot be represented in type 'int'
Fixes: 16966/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HEVC_fuzzer-5695709549953024

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 f63cd1963e)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
9691f42ae9 avcodec/4xm: Check index in decode_i_block() also in the path where its not used. 
Fixes: Infinite loop
Fixes: signed integer overflow: 2147483644 + 16 cannot be represented in type 'int'
Fixes: 16169/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FOURXM_fuzzer-5662570416963584
Fixes: 16782/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FOURXM_fuzzer-5743163859271680
Fixes: 17641/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FOURXM_fuzzer-5711603562971136

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 87ddf9f1ef)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00
Michael Niedermayer
b0c5ec9ab4 avcodec/loco: Check for end of input in the first line 
Fixes: Timeout (85sec -> 0.1sec)
Fixes: 17634/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_LOCO_fuzzer-5666410809786368

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 c5a52eb5cd)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-06 11:30:43 +01:00