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mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-01-29 22:00:58 +02:00

88423 Commits

Author SHA1 Message Date
Michael Niedermayer
a663d186a6 avcodec/htmlsubtitles: Avoid locale dependant isdigit()
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit b94cf549e2d9e456d77f8539baca0fffa805ba69)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:46 +01:00
Michael Niedermayer
a003c985bb avcodec/alsdec: Check k from being outside what our implementation can handle
The specification does not seem to list what the maximum valid
value is

Fixes: shift exponent 32 is too large for 32-bit type 'unsigned int'
Fixes: 16268/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALS_fuzzer-5638164544225280

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 e1255789941d213a8e193469d0687946c9fa4a63)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:46 +01:00
Michael Niedermayer
da76ca5551 avcodec/takdec: Fix integer overflow in decorrelate()
Fixes: signed integer overflow: -2424832 - 2145653689 cannot be represented in type 'int'
Fixes: 16138/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TAK_fuzzer-5643451346976768

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 f1192736494a5b16717de66da4a3d3c6af0e9a7a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:46 +01:00
Michael Niedermayer
089b1e1677 avcodec/aacps: Fix integer overflows in hybrid_synthesis()
Fixes: signed integer overflow: -822667928 + -1399761199 cannot be represented in type 'int'
Fixes: 15756/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AAC_FIXED_fuzzer-5645182051024896

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 ec749ed2225e0c33f0910fc318c73da6f4ceb587)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:46 +01:00
Michael Niedermayer
bc2fb4cf8a avcodec/vp56rac: delay signaling an error on truncated input
A threshold of 1 is sufficient for simple_dump_cut.webm, 10 is used
just to be sure the next truncated file doesnt cause the same issue

Obvious alternative fixes are to simply accept that the file is broken or to
write some advanced error concealment or to
simply accept that the decoder wont stop at the end of input.

Fixes: Ticket 8069 (artifacts not the differing md5 which was there before 1afd246960202917e244c844c534e9c1e3c323f5)
Fixes: simple_dump_cut.webm
Fixes: regression of 1afd246960202917e244c844c534e9c1e3c323f5

fate-vp5 changes because the last frame is truncated and now handled
differently.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit b6b9ac5698c8f911841b469af77199153278c55c)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 70fb3fa990d604211d5b24fc43cdfe31560de250)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:46 +01:00
Michael Niedermayer
8e41f41077 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 ab56e62e8f7e02760cfc883956511cab32393315)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 1dd89192c59df0d6655e9308a0782d8c7b259b18)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
ad3452eb25 avcodec/vp56: Add vpX_rac_is_end() to check for the end of input
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 0fb83b4c91d5a0784ca81df4283f25740c263f20)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
f1b943df92 avcodec/qdm2: Check frame size
Fixes: index 2304 out of bounds for type 'float [2304]'
Fixes: 16332/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_QDM2_fuzzer-5679142481166336

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 12b909ba319d32ed100d9b26021aa9b6976424d7)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
18c0c14a05 avcodec/vc1_pred: Fix refdist in scaleforopp()
Fixes: out of array access
Fixes: 16601/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VC1IMAGE_fuzzer-5656105392275456

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 413e0f2516eef678011cffd1ec6f0d92aa8bb96a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
eeb1e37e76 avcodec/vorbisdec: fix FASTDIV usage for vr_type == 2
This reverts a hunk from f1ca40ee00402102046fc7e59606651930436b0e

Fixes: out of array read
Fixes: 16924/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VORBIS_fuzzer-5157893162139648

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 722fd4696583cc984700eaec4745922ae177b2da)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
79e06f4d31 avcodec/iff: Check for overlap in cmap_read_palette()
Fixes: undefined memcpy() use
Fixes: 16302/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IFF_ILBM_fuzzer-5678750575886336

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 dfa5d1a3667fa38e07373becc2401175b31d8228)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
6d1f143ae1 avcodec/apedec: Fix 32bit int overflow in do_apply_filter()
Fixes: signed integer overflow: 2147480546 + 4096 cannot be represented in type 'int'
Fixes: 16280/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APE_fuzzer-5123442566758400

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 9d3ddef519e88c40c05be8cb94cd9e71c0957ec7)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
aefa5dd5a4 avcodec/ralf: fix undefined shift in extend_code()
Fixes: left shift of negative value -3
Fixes: 16147/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RALF_fuzzer-5658392722407424

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 4778407ab3b545c40def7e95a8f9dd4ae92a4e8e)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
7096eb193c avcodec/ralf: fix undefined shift
Fixes: left shift of negative value -2
Fixes: 16145/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RALF_fuzzer-5146671058518016

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 0ee886988e75b3c22cabc2ca0fadcf8e4f787640)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
cb1af09dd0 avcodec/bgmc: Check input space in ff_bgmc_decode_init()
Fixes: Infinite loop
Fixes: 16608/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALS_fuzzer-5636229827133440

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 b54031a6e93d1abc7fb2d0263e0f6c4b639e423f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
0ccc7efc4d avcodec/truemotion2: Fix multiple integer overflows in tm2_null_res_block()
Fixes: signed integer overflow: 1795032576 + 598344192 cannot be represented in type 'int'
Fixes: 16196/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TRUEMOTION2_fuzzer-5636723419119616

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 cc78783ce5e8837d4f4ca43eedf2d299651e65ff)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
befb2f717b avcodec/vc1dec: Require res_sprite for wmv3images
non res_sprite leads to decoder delay which leads to assertion failure
Fixes: Assertion failure
Fixes: 16402/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMV3IMAGE_fuzzer-5704510034411520
Fixes: left shift of 1073741824 by 1 places cannot be represented in type 'int'
Fixes: 16425/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMV3IMAGE_fuzzer-5692858838810624

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 9c6b4004928ef41563b0e913666f8da27fdb2399)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
29765b3be3 avcodec/vc1_block: Check for double escapes
Fixes: out of array read
Fixes: 16331/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMV3IMAGE_fuzzer-5672735195267072

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 6962fd586e1a9a98828866dcfb4114af30c8c756)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
62afc95281 avcodec/vorbisdec: Check get_vlc2() failure
Fixes: out of array read
Fixes: 16510/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VORBIS_fuzzer-5754510382727168

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 07b948fe60789064d7c784d47b8fe798a9a4d2b9)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
1b4b7a7de1 avcodec/tta: Fix integer overflow in prediction
Fixes: signed integer overflow: -395281576 + -1827578048 cannot be represented in type 'int'
Fixes: 16038/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TTA_fuzzer-5646109705240576

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 7e9aecc9f358901426c134978e764ee7beac4944)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
697383e178 avcodec/vb: Check input packet size to be large enough to contain flags
Fixes: Timeout (->9sec)
Fixes: 16292/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VB_fuzzer-5747063496638464

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 dea2591d4fbc989ca82bc8a8ad7d16aacdc89af1)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
891508dd88 avcodec/cavsdec: Limit the number of access units per packet to 2
Fixes: Timeout (122sec -> 13ms)
Fixes: 15978/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CAVS_fuzzer-5148925004087296

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 37bc8e3249c88b733bcc0d8c74cdf668292e4d63)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
1f47a0135e avcodec/alac: Check for bps of 0
Fixes: shift exponent 32 is too large for 32-bit type 'unsigned int'
Fixes: 15764/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALAC_fuzzer-5102101203517440

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 8f49176e845fee8e4e0aaf06411636b46d1ae3ad)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
cc70b01c39 avcodec/alac: Fix multiple integer overflows in lpc_prediction()
Fixes: signed integer overflow: 2088795537 + 2147254401 cannot be represented in type 'int'
Fixes: signed integer overflow: -1500363496 + -1295351808 cannot be represented in type 'int'
Fixes: signed integer overflow: -79560 * 32640 cannot be represented in type 'int'
Fixes: signed integer overflow: 2088910005 + 2088796058 cannot be represented in type 'int'
Fixes: signed integer overflow: -117258064 - 2088725225 cannot be represented in type 'int'
Fixes: signed integer overflow: 2088725225 - -117258064 cannot be represented in type 'int'
Fixes: 15739/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALAC_fuzzer-5630664122040320

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 ae3d6a337ad25527bcd3172e3885e45fadf9908c)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
793ff83b16 avcodec/rl2: set dimensions
The dimensions are always 320x200 they are hardcoded in the demuxer.
Hardcode them instead in the decoder.

Fixes: Timeout (16sec -> 400ms)
Fixes: 15574/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RL2_fuzzer-5158614072819712

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 965e766e4892cfc45c97cca88895248a7735e7d0)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
3381c2bd9b avcodec/aacdec: Add FF_CODEC_CAP_INIT_CLEANUP
Fixes: memleaks
Fixes: 16289/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AAC_LATM_fuzzer-5200695692623872

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 48b86dd8a6bf50a7d8ab0343a1535bc4b0b5b196)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
b72b3d43ed avcodec/idcinvideo: Add 320x240 default maximum resolution
Fixes: Timeout (128sec -> 2ms)
Fixes: 16568/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IDCIN_fuzzer-5675004095627264

See: [FFmpeg-devel] [PATCH 4/4] tools/target_dec_fuzzer: Adjust max_pixels for IDCIN

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 c9fcf881e69e34a2acfa2bb7052ca200cab16740)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
032fc5b082 avformat/realtextdec: free queue on error
Fixes: memleak
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: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 493438fafc5c43b7b7c62bf0c21b7cc884034ce9)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
9dd231c42c 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 661a9b274b0181b2e36ff21fd13840f35992bea6)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
e37b9df6c9 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 f51e4d026cc762ff2d47d6107658dbff42ba5ea8)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
12f5cb95f8 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 1965161ef6d2aac8d3b034570c3da69dabca9e71)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
5349964e02 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 e301736862f18a449c317a47d0d60d3484e41667)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
36e3470195 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 c812db814ebd603106220854e343558ec1115e57)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
50b07e145b 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 cdea0206efeca83a0a9b57d0764b177b2e11ab7c)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
a2d0ed8718 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 c4a88fb546b64179aff12c169239285932e570ac)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
66e60b3c96 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 52939a2c5772ec00101d293695d0a96dcccf99d9)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
87a4871571 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 fbbc8ba67f19d55380b1bc8b5f057328c266d747)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
b9b9106f25 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 db78bc1297ebaa51cfe5c80775808ec11ed7512b)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
32b4512aec 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 8f92eb05e063e6c4d6e36521020620d4e6e1c21d)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
1adb5720a2 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 021f29506b493376d62cdb5b9cb66a6b85e5361f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
0ca85d1326 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 cd460f4da04c05d6ba93ccbbe294e948768f0937)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
23f54b4db2 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 da8936969fe695a042282d5686e12227745d299a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
fd897acc35 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 950a21e83c742714d6afbecd3e3fd1887e80fa40)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
26d48144e5 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 9cd1e939cf26e7a53f28cbbda22d27535981b9db)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
dbc9f38aac 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 e8bb949ade4078ca318a9b3475cb7a6cfc7e4639)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
e80c90eadb 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 fad3ec89b7a664b93b5e29bdb0db0cab0272a0c4)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
fb12d635c5 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 ce652324062a2c72f92e40699797630ef7f1ec5a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
351381a3e3 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 02346292a334a51f6da802146b782bdb01ae9b4e)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Michael Niedermayer
e5661aa706 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 da93e2b14218c4ab0fda60e21882a4633aac5748)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00
Andreas Rheinhardt
dbc9034dc2 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 f12e662a3d3f489eec887b5f2ab20a550caed9cf)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-15 12:25:45 +01:00