Commit graph

44795 commits

Author SHA1 Message Date
Michael Niedermayer
674adf0a02 avcodec/vc1dec: Disable error concealment for *IMAGE
The existing error concealment makes no sense for the image formats, they
use transformed source images which is different from keyframe + MC+difference
for which the error concealment is designed.
Of course feel free to re-enable this if you have a case where it works and
improves vissual results

Fixes: Timeout
Fixes: 36234/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VC1IMAGE_fuzzer-6300306743885824

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 643b2d49bf)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-09-08 21:31:50 +02:00
Michael Niedermayer
f25834ab07 avcodec/sbrdsp_fixed: Fix negation overflow in sbr_neg_odd_64_c()
Fixes: negation of -2147483648 cannot be represented in type 'int'; cast to an unsigned type to negate this value to itself
Fixes: 35593/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AAC_FIXED_fuzzer-5182217725804544

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 8f2856a1da)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-09-08 21:31:50 +02:00
Michael Niedermayer
725a0446b4 avcodec/argo: Check for even dimensions
Fixes: reading over the end
Fixes: 36346/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ARGO_fuzzer-5366943107383296

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 c2f5e9ff3c)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-09-08 21:31:50 +02:00
Michael Niedermayer
fbf576417a avcodec/exr: Check ac_count
Fixes: signed integer overflow: -9223372036854775808 * 2 cannot be represented in type 'long long'
Fixes: 36244/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_EXR_fuzzer-6090656186499072

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 9bc32d7c4b)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-09-08 21:31:50 +02:00
Michael Niedermayer
3a67e33368 avcodec/aaccoder: Add minimal bias in search_for_ms()
Fixes: floating point division by 0
Fixes: Ticket8218

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 75a099fc73)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-09-08 21:31:50 +02:00
maryam ebr
46bbf194c4 avcodec/dnxhddec: check and propagate function return value
Similar to CVE-2013-0868, here return value check for 'init_vlc' is needed.
crafted DNxHD data can cause unspecified impact.

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 7150f95756)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-09-08 21:31:50 +02:00
Michael Niedermayer
6a5d7fd8ad avcodec/aacdec_template: Avoid some invalid values to be set by decode_audio_specific_config_gb()
Fixes: NULL pointer dereference
Fixes: decode_spectrum_and_dequant.mp4

Found-by: Rafael Dutra <rafael.dutra@cispa.de>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit eaec4df63f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-09-08 21:31:50 +02:00
Michael Niedermayer
1196932f1c avcodec/lpc: check for zero err in normalization in compute_lpc_coefs()
Fixes: floating point division by 0
Fixes: Ticket8213

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 70874e024a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-09-08 21:31:50 +02:00
Michael Niedermayer
09f47af747 avcodec/j2kenc: Check for av_strtok() failure
Fixes: CID1466601 Dereference null return value

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 6a6a765fa4)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-09-08 21:31:50 +02:00
Michael Niedermayer
8f0d442434 avcodec/cpia: Fix missing src_size update
Fixes: out of array read
Fixes: 35210/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CPIA_fuzzer-5669199688105984

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 cea05864e6)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-09-08 21:31:50 +02:00
Michael Niedermayer
7b5308045e avcodec/exr: Better size checks
Fixes: signed integer overflow: 3530839700044513368 + 8386093932303352321 cannot be represented in type 'long long'
Fixes: 35182/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_EXR_fuzzer-5398383270428672

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 18b0dd0738)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-09-08 21:31:50 +02:00
Michael Niedermayer
bb1d2cf898 avcodec/clearvideo: Check tile_size to be not too large
Fixes: left shift of 1 by 31 places cannot be represented in type 'int'
Fixes: 35023/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CLEARVIDEO_fuzzer-6740166587842560

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 11fac9613e)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-09-08 21:31:50 +02:00
Michael Niedermayer
417bc2a5b0 avcodec/utils: Use 64bit for intermediate in AV_CODEC_ID_ADPCM_THP* duration calculation
Fixes: signed integer overflow: 486539264 * 14 cannot be represented in type 'int'
Fixes: 35281/clusterfuzz-testcase-minimized-ffmpeg_dem_RSD_fuzzer-6068262742917120

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 00ae9b77ef)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-09-08 21:31:50 +02:00
Michael Niedermayer
b49039b23e avcodec/hevc_sei: Use get_bits_long() for time_offset_value
Fixes: assertion failure
Fixes: crash_1

Found-by: Thuan Pham <tpham.unimelb@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit d866787dac)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-09-08 21:31:50 +02:00
Michael Niedermayer
b01534293e avcodec/iff: Only write palette to plane 1 if its PAL8
Fixes: null pointer passed as argument 1, which is declared to never be null
Fixes: 33791/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IFF_ILBM_fuzzer-5107575256383488.fuzz

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 216eb60b85)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-09-08 21:31:50 +02:00
James Almer
bf87bdd3f6 avcodec/h264_slice: clear old slice POC values on parsing failure
If a slice header fails to parse, and the next one uses different Sequence and
Picture parameter sets, certain values may not be read if they are not coded,
resulting in the previous slice values being used.

Signed-off-by: James Almer <jamrial@gmail.com>
2021-08-10 15:22:12 -03:00
James Almer
3f06be77ac avcodec/crystalhd: signal that the decoder sets all output frame properties
Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit ec8e95296e)
2021-06-23 11:24:56 -03:00
James Almer
6136f1398a avcodec/cuviddec: signal that the decoder sets all output frame properties
Fixes memleaks described in ticket #9082.

Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 6b4805686c)
2021-06-23 11:24:53 -03:00
James Almer
4a953e5c81 avcodec/decode: reindent after the previous commit
Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit b4c2ff3e41)
2021-06-23 11:21:09 -03:00
James Almer
28e803d637 avcodec/decode: add an internal codec flag to signal a decoder sets all output frame properties
Decoders like cuviddec ignore and overwrite all the properties set by the generic
code as derived from AVCodecInternal.last_pkt_props. This flag ensures libavcodec
will not store and potentially queue input packets that ultimately will not be used.

Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 7b9610ebd8)
2021-06-23 11:17:06 -03:00
James Almer
7015704640 avcodec/decode: fetch packets from the pkt_props FIFO on every frame returned
Fixes memleaks on decoders that don't call ff_decode_frame_props(), like
libdav1d.

Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit a4fb03563a)
2021-06-21 16:31:26 -03:00
Michael Niedermayer
29d3e924a6 avcodec/faxcompr: Check available bits in decode_uncompressed()
Fixes: Timeout
Fixes: 34950/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TIFF_fuzzer-5686764151898112
Fixes: 34966/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TIFF_fuzzer-4587409334468608

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 ff56c139e0)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-06-18 20:53:56 +02:00
Michael Niedermayer
d91f3644ce avcodec/faxcompr: Check if bits are available before reading in cmode == 9 || cmode == 10
Fixes: Timeout
Fixes: 34950/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TIFF_fuzzer-5686764151898112

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 7d8421e3d5)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-06-18 20:53:56 +02:00
Michael Niedermayer
a21c64199c avcodec/utils: do "calc from frame_bytes, channels, and block_align" in 64bit
Fixes: signed integer overflow: 104962766 * 32 cannot be represented in type 'int'
Fixes: 33614/clusterfuzz-testcase-minimized-ffmpeg_dem_RSD_fuzzer-6252129036664832

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 3447979d08)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-06-18 20:53:56 +02:00
Michael Niedermayer
93ef174211 avcodec/ttadata: Add sentinel at the end of ff_tta_shift_1
Fixes: out of array access
Fixes: 34933/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TTA_fuzzer-5629322560929792

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 dbbcfbcc4e)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-06-18 20:53:56 +02:00
Michael Niedermayer
f91056a25a avcodec/dpx: fix off by 1 in bits_per_color check
Fixes: CID1476303 Bad bit shift operation
Fixes: 34871/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DPX_fuzzer-6331163028357120

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit ca9025f374)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-06-18 20:53:56 +02:00
Michael Niedermayer
350bedf7e2 avcodec/vc2enc: Check for non negative slice bounds
Fixes: invalid shifts
Fixes: Ticket 8221

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit f7862e8268)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-06-18 20:53:56 +02:00
Michael Niedermayer
78b71acab7 avcodec/mpegvideo_enc: Reset stuffing bits if they are not supported
Fixes: Assertion failure
Fixes: Ticket8202

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 996797f8ed)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-06-18 20:53:56 +02:00
Michael Niedermayer
478c5d838b avcodec/svq1enc: Do not print debug RD value before it has been computed
Avoids floating point division by 0

Fixes: Ticket8191

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit c297f7e57a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-06-18 20:53:56 +02:00
Michael Niedermayer
159403fc9f avcodec/aacpsy: Check bandwidth
Fixes: Ticket8011

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 36dead4bc2)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-06-18 20:53:56 +02:00
Michael Niedermayer
27727d56bf avcodec/aacenc: Do not divide by lambda_count if it is 0
Avoids Floating point division by 0

Fixes: Ticket8011

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit c520b98691)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-06-18 20:53:56 +02:00
Michael Niedermayer
2b70d3941f avcodec/aacenc: Use FLT_EPSILON for lambda minimum
(cherry picked from commit 4b89cf7aa4)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-06-18 20:53:56 +02:00
Michael Niedermayer
7fbea837fd avcodec/lpc: Avoid floating point division by 0
Fixes: Ticket7996
Fixes: CVE-2020-20445

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 38d18fb578)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-06-18 20:53:56 +02:00
Michael Niedermayer
5828700d5c avcodec/aacpsy: Avoid floating point division by 0 of norm_fac
Fixes: Ticket7995
Fixes: CVE-2020-20446

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 223b5e8ac9)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-06-18 20:53:56 +02:00
Michael Niedermayer
05cca35df9 avcodec/aacenc: Avoid 0 lambda
Fixes: Ticket8003
Fixes: CVE-2020-20453

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit a7a7f32c8a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-06-18 20:53:56 +02:00
Michael Niedermayer
43bdf562c3 avcodec/exr: More strictly check dc_count
Fixes: out of array access
Fixes: exr/deneme

Found-by: Burak Çarıkçı <burakcarikci@crypttech.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 26d3c81bc5)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-06-18 20:53:56 +02:00
Michael Niedermayer
fa38dfc0ef avcodec/exr: x/ymax cannot be INT_MAX
The code uses x/ymax + 1 so the maximum is INT_MAX-1

Fixes: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int'
Fixes: 33158/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_EXR_fuzzer-5545462457303040

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 48342aa075)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-06-18 20:53:56 +02:00
Michael Niedermayer
a6bd1bdd12 avcodec/clearvideo: Check for 0 tile_shift
Fixes: shift exponent -1 is negative
Fixes: 33401/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CLEARVIDEO_fuzzer-5908683596890112

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 63e75e09ae)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-06-18 20:53:56 +02:00
Michael Niedermayer
3f81371bd4 avcodec/vc1: Check remaining bits in ff_vc1_parse_frame_header()
Fixes: Timeout
Fixes: 33156/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMV3_fuzzer-6259655027326976

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 38c4761588)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-06-18 20:53:56 +02:00
Michael Niedermayer
0dc1c85644 avcodec/alsdec: Fix decoding error with mono audio files
highest_decoded_channel is modified to serve as meant.

Reported-by: Noboru Harada <noboru@ieee.org>

Regression since: a11aa5f3ed
Fixes: Sin48k16bit1ch.mp4
Reviewed-by: Thilo Borgmann <thilo.borgmann@mail.de>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit f7987ce966)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-06-18 20:53:56 +02:00
Michael Niedermayer
89d8eae0c6 avcodec/faxcompr: Check for end of bitstream in decode_group3_1d_line() and decode_group3_2d_line()
Fixes: infinite loop
Fixes: 33674/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TIFF_fuzzer-4816457818046464

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 08d2df4153)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-06-18 20:53:56 +02:00
Michael Niedermayer
82de510a59 avcodec/utils: treat PAL8 for jpegs similar to other colorspaces
Fixes: out of array access
Fixes: 33713/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MJPEG_fuzzer-5778775641030656
Fixes: 33717/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_JPEGLS_fuzzer-4960397238075392
Fixes: 33718/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SMVJPEG_fuzzer-5314270096130048.fuzz
Fixes: 33719/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MJPEG_fuzzer-5352721864589312
Fixes: 33721/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_THP_fuzzer-5938892055379968

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 f0ce023ddb)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-06-18 20:53:56 +02:00
Michael Niedermayer
1abd61e006 avcodec/jpeglsdec: Set alpha plane in PAL8 so image is not 100% transparent
Fixes: tickets/3933/128.jls

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 011006874c)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-06-18 20:53:56 +02:00
Michael Niedermayer
7f0353bc55 avcodec/faxcompr: Check remaining bits on error in decode_group3_1d_line()
Fixes: Timeout
Fixes: 32886/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TIFF_fuzzer-4779761466474496

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 7b3881f0da)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-06-18 20:53:56 +02:00
Michael Niedermayer
246b3d58a9 avcodec/utils: Check ima wav duration for overflow
Fixes: signed integer overflow: 44331634 * 65 cannot be represented in type 'int'
Fixes: 32120/clusterfuzz-testcase-minimized-ffmpeg_dem_RSD_fuzzer-5760221223583744

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 f40e9b1355)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-06-18 20:53:56 +02:00
Michael Niedermayer
f4c5abe2d0 avcodec/rv10: Execute whole size check earlier for rv20
Fixes: Timeout
Fixes: 31380/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RV20_fuzzer-5230899257016320

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 f8556b632f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-06-18 20:53:56 +02:00
Michael Niedermayer
48be6b27e7 avcodec/exr: increase vlc depth
Fixes: shift exponent -4 is negative
Fixes: 32265/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_EXR_fuzzer-465133454137753

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 3344079d30)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-06-18 20:53:56 +02:00
Michael Niedermayer
b3f458f89f avcodec/dpx: Check bits_per_color earlier
Fixes: shift exponent 251 is too large for 32-bit type 'int'
Fixes: 32147/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DPX_fuzzer-5519111675314176

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 c093eb3031)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-06-18 20:53:56 +02:00
Timo Rothenpieler
8d172d9409 avcodec/nvenc: disable s12m timestamps by default
Leads to weird crashes with valid looking input data for otherwise
unknown reasons.
2021-05-29 23:29:06 +02:00
Martin Storsjö
c813f5e343 aarch64: hevc_idct: Fix overflows in idct_dc
This is marginally slower, but correct for all input values.
The previous implementation failed with certain input seeds, e.g.
"checkasm --test=hevc_idct 98".

Signed-off-by: Martin Storsjö <martin@martin.st>
(cherry picked from commit f27e3ccf06)
2021-05-22 22:33:20 +03:00